Changelog

• ImprovedDaily bolt tightening adds welded girder splices with a long column of web bolts that needs initial, re-tightening and final passes
• ImprovedBolt Tightening now follows the high-strength bolt code's tightening sequence: within a group start at the splice line and work toward the ends, and take groups in order (column side first on beams, flanges before web on columns); adds box-column splices and shows the snug torque
• ImprovedThe material takeoff list can now be filtered by section type, grade and keyword, with a subtotal for the filtered rows
• ImprovedBatch part-drawing export can now select all plain-plate sections at once, so you can export plates only
• NewNew "Model earnings" ranking: see which public models earned the most coins from paid opens and renewals
• ImprovedCargo loading can now place the bottom layer directly on the deck without dunnage
• ImprovedBolt Tightening now lets you unlock today's answer (the reference order and replay) with fragments or coins
• NewNew daily game, Bolt Tightening: work through a beam or column splice — snug, re-tighten, final — from the middle of each bolt group outward, in the least time; perfect attendance now counts all 7 daily games
• ImprovedLoading simulation can now use a packing rack on the deck, sized to your own rack
• ImprovedTrucks, trailers and containers look much more realistic in the loading simulation and shop previews
• ImprovedPerfect attendance now counts all 6 daily mini-games including the weld race, which also counts toward mini-game days and daily wins; the growth page now lists mini-game achievements
• NewDaily tasks now include two "Explore" picks each day that take you straight to a part of the site; task rewards are bigger, and new weekly chests open after 3, 5 and 7 all-clear days, with a streak shield at day 5
• FixedFixed some posts never getting a translation
• ImprovedWeld race now lets you unlock today's answer (the robot's order and replay) with fragments or coins, and shows yesterday's solution and winner
• NewCommunity posts and comments are now shown in your language, with a "Show original" toggle

• ImprovedThe globe now stops zooming in once the imagery is at its sharpest, so it no longer turns blurry
• ImprovedThe fabrication and supplier directory map is now a satellite globe you can drag to rotate
• ImprovedNew streak rewards at 20 and 50 days, and check-in now shows how far the next one is
• FixedThe jobs hall sidebar now labels its count as publicly listed profiles and counts all of them
• ImprovedMissing a day no longer resets your check-in progress: every 7 check-ins earn the 50-fragment reward
• ImprovedNew users get an extra 50 fragments after checking in on 3 days
• ImprovedDaily check-in is now in the top bar on every page (in the avatar menu on phones)
• FixedFixed the English header menu overlapping the buttons on the right; Guides, Changelog and Feedback now live under a Help menu
• NewBOQ quote items can now fill the main material price from today's steel market price in one click, converted to excluding VAT
• NewNew steel price board: today's prices, daily change and 30-day trend by market, plus a side-by-side comparison across markets
• FixedThe 3D view beside part drawings now shows bolt holes for models whose bolts only state a nominal size, and part marks sit on the part surfaces
• ImprovedName tags above figures now shrink with distance like the figures themselves; crowded offline visitors only show the nearest names, and new figures spawn a bit farther from the building

• NewPublic beta: every paid feature is now free for everyone, with storage, file size and team seats at least at the Pro level; plans are not on sale during the beta, and active paid members get their plan extended by the length of the beta

• NewYou can now set an open fee on a share — visitors pay once after signing in and can open it for good; for models in Explore and Community, paying includes 1 day of viewing, then ¥1 per day
• NewSharers now set the daily price visitors pay to renew an expired link (at least ¥1)
• NewSharers receive 70% of these fees as coins; visitors now pay with cash or coins only

• NewWhen a share link expires, visitors can renew it themselves for ¥1 a day — no account needed, just scan to pay with WeChat
• NewNew share setting "Let visitors renew the link themselves", on by default
• Improved"Online now" in the community shows real avatars and updates live as people come and go
• NewThe community page now shows who's online; you can hide your own status under Preferences → Privacy
• FixedShared model pages now offer WeChat sign-in from the login dialog

• FixedGrids and level tags in multi-building site models now line up with the buildings instead of drifting off
• FixedFixed the homepage total steel weight being inflated to an absurd number by a malformed part in one model
• ImprovedAssembly drawings with many bolts compute several times faster; fixed a few bolt groups missing holes
• ImprovedRefreshed homepage: tighter layout, capabilities in one section, and enterprise options alongside getting started at the end
• ImprovedRefreshed dashboard: a cleaner layout, overview numbers in one row, and a tidier side column with upload, membership, recent activity and resources
• Improved"Update model" is now also on the model details page, next to "Rename"
• Improved"Update model" is now also in each model's "⋯" menu in the model list, no need to open the model first
• ImprovedDaily Weld Race now uses portal-frame columns and rafters: click seams to set the welding order, right-click to flip direction, and see each seam's details as you pick it
• NewNew games hub: all six daily games on one page, with today's status and your rank
• NewWeld Race now appears in rankings, the unplayed red dot, the community feed and daily tasks

• FixedWeld Race: the arm no longer snaps straight when you press a move key; aiming with G no longer drives the arm into the workpiece
• NewNew daily game "Weld race": drive a welding robot through today's part and race the robot's own program
• NewNew rotation inertia: after you release a drag, the model keeps turning for a moment before stopping. Choose Off / Light / Medium / Strong in Preferences
• FixedPart mark labels now shrink to fit on small or heavily drilled parts, so every part shows its mark
• FixedPart mark labels now sit only on a part's broad faces, never on the thin edge of a plate
• ImprovedIn the component AR preview, part marks now sit on the part surfaces in the 3D view, the same as in AR
• FixedFixed parts showing as unnumbered in part drawings, assembly drawing material tables and part number labels for some models
• FixedFixed parts showing as unnumbered, with no part labels, in component AR and part lists for some models
• NewModels can now be updated: choose "Update model" from the model title to upload a new revision and every assembly is compared automatically; scanning an issued assembly drawing opens the latest revision and shows which parts changed
• ImprovedIn component AR on iPhone, part marks now also show on the parts in the real-world view
• FixedFixed very slow conversions and timeouts on some large models with many bolts
• ImprovedLarge models convert with less memory and are less likely to fail
• ImprovedModel conversion is faster and uses less memory
• ImprovedFirst-person walkthrough no longer moves too fast, and you can press [ and ] to slow down or speed up
• ImprovedModels with many bolt holes now convert several times faster

• FixedVery large models with lots of bolts and washers no longer fail to convert from running out of memory, and convert much faster
• ImprovedOrbiting and zooming very large models is smoother: tiny parts such as bolts and washers that are too small to see are skipped while the view moves and appear again as soon as it stops
• ImprovedThe 3D viewer no longer redraws while the view is still, so large models stop keeping your GPU busy
• NewBatch part-drawing export can now write geometry-only DXF with the part mark placed on the plate clear of holes, ready for laser nesting software
• NewDrawing-to-model jobs are now checked against your submitted drawings after delivery; the job page lists grid, position and section differences
• FixedFixed the quantity takeoff sometimes staying "queued" for a long time
• ImprovedSteel totals in the quantity takeoff no longer include crane rails; rail weight is listed separately below the total
• NewDrawing comparison now checks section sizes: it reads size labels and member tables on the drawing and flags members whose section differs from the drawing
• NewNew drawing comparison: cut an elevation along a grid line or a plan at a level, import a DXF / DWG drawing, auto-align it and see grid and level differences, offset, missing and extra members, with export of the marked-up drawing and list
• ImprovedDrawing modeling no longer always pauses for plan confirmation; it only stops to ask when something in the drawings is unclear
• FixedSaddle cuts made with a rectangular tube are now applied instead of being skipped

• FixedTube saddle cuts now show as clean saddles instead of leaving a ring of fragments at the tube end
• ImprovedMember mark plates now move clear of tie bars and braces instead of being hidden behind them
• ImprovedThe workspace now shows upcoming and running limited-time sales at the top
• ImprovedUpcoming limited-time sales are now announced on the pricing page and shop with their start time and top discount
• FixedFixed speckled member edges and garbled crane panels when viewing some small models from a distance

• NewNew wishlist: tap "Notify me on sale" on plans and shop items to get notified when they go on sale
• NewDuring limited-time sales, the pricing page, shop and checkout show the sale price, the original price and a countdown
• FixedSteel totals in the quantity takeoff no longer include concrete elements; concrete weight is listed separately below the total
• NewYou can now like comments and replies
• NewYou now get a reminder a day before a quote's client link expires, with a direct way to extend it
• NewWhen a shared model or quote link has expired, visitors now see a clear notice and can ask the sharer to renew it with one tap; the sharer can extend it straight from the reminder and the original link works again
• ImprovedThe invite-a-peer leaderboard now shows how many people each member has invited, and lists members who haven't qualified yet along with how many more activations they need
• ImprovedAnonymous players on the daily game podium now get playful titles that change every day
• NewFree plan can now make part and assembly drawings: 0.1 coins or 10 fragments per drawing, unlocked for good
• ImprovedLearn bug bounty: several people can now mark the same spot and reports are reviewed in order; lesson quizzes require signing in to submit
• NewNew Q4 referral campaign: earn fragments for inviting peers or bringing companies through verification, with rank prizes and a limited badge for the top 10 on each board
• ImprovedLearn bug bounty: select text in a lesson or 3D node to report a mistake; marked spots show the reporter and the correction to everyone, and you can second an existing report
• ImprovedDetailer showcase time now costs 3 coins or 300 fragments for 10 days
• ImprovedLevel plane opacity is now adjustable with a slider in the grid menu, and the default is stronger
• NewNew directory listings and newly approved detailers are now shown free for 3 months, then renewable at 30 fragments a day; directories and listed talent are now visible to signed-in users only
• NewLesson quizzes now earn fragments: 10 for your first submission of each lesson, plus 5 per correct answer
• ImprovedThe "Listed partners" panel moved to the community feed sidebar
• NewNews and event pages now show viewers and views, and support likes and comments
• ImprovedMy models now has a "Listed partners" panel showing 3 random listed companies and 3 detailers; "Where to share" and resources moved back there from the community feed
• NewNew ongoing Learn bug bounty: report a mistake in a lesson or 3D node and earn 500 fragments for each accepted report
• NewNew Smart Equipment directory under Sharing & Partners: makers of welding robots, CNC cutting, drilling/sawing and beam lines, H-beam assembly lines, blasting/painting equipment and smart production lines can list themselves on the map, searchable by their equipment
• NewNew level planes for grids: a translucent plane with its level at every elevation, optionally coloured by level; click a level ruler number to show only that level's grid and plane, click again to show all
• ImprovedWeld statistics now prioritise the model you have open and show results automatically when ready
• ImprovedWeld statistics now remember which joint types are ticked for the site weld estimate
• FixedFixed zooming barely moving on large, sparse sites when pointing at empty ground with a trackpad or pinch

• NewWeld statistics now estimate site welds from joint rules (beam-to-column, column splices), with selectable joint types
• NewWeld statistics now list the model's own detailing welds, with shop and site welds counted separately
• NewNew weld statistics: fill in the weld requirements from your design notes to see shop weld counts and lengths by grade, penetration and member
• NewModel check now flags missing weld access holes: stiffeners and ribs that sit on a main weld without a snipe

• NewProject share links can now be extended in place too, keeping the same link and password; expired links can be revived
• NewShare links can now be extended in place: the link and password stay the same, extra days cost gear fragments, and expired links can be revived too
• ImprovedThe quantity takeoff panel now shows an estimated steel weight while queued instead of 0, and newly converted models start sooner
• NewThe viewer background now has a pure black option (dark theme)
• FixedFixed stray asterisks in the quantity takeoff warning
• FixedFixed save/bookmark buttons overlapping the header and the like button hidden behind the toolbar on mobile share pages

• ImprovedCommunity posts now shrink images over 1 MiB automatically, so phone photos can be posted as-is; the photo's location data is removed too.
• ImprovedEntering Community and My Models no longer stutters
• FixedWhile a large model is being version-compared, other people's quote weights and project batch syncs no longer wait behind it.
• ImprovedCrane name tags now sit in the scene, scale with distance and hide behind steel
• FixedComparing versions, syncing project batches or pulling model weights for a quote on a large model no longer freezes the rest of the site.
• ImprovedPages open faster when you hover a top-bar link before clicking it.
• ImprovedThe Shop now opens noticeably faster from the top bar.
• FixedOpening property filters on a large model no longer freezes the rest of the site for several seconds.
• ImprovedIn the loading simulation, open-top and flat-rack containers can be loaded as out-of-gauge, using the over-height and over-width on the booking.
• ImprovedThe loading simulation has an oversize/overweight permit switch: load to the payload, overall height and width on the permit, and let members longer than the deck overhang the rear.
• ImprovedIn the loading simulation, the supports on the deck and between layers can each be set to timber or railway sleepers, e.g. sleepers to lift the bottom layer for slings or forks.
• NewNew "Loading simulation": packs selected members onto trucks or into containers by grid line and erection order (columns with their bracing and ties first, then beams), showing how many loads are needed, what goes on each, payload and centre of gravity, and which members are too long or wide to fit, with a 3D view of each load. The shop now offers trucks and containers; a 13 m flatbed trailer and a 40 ft dry container are free to use.
• FixedFlying the crane is easier: hold a direction to tilt and fly that way, release to level off; the phone's forward button now works in the air
• NewForgot your password? You can now reset it from the sign-in page with an email code
• ImprovedQuantity takeoff totals now count steel only; bolt weight is listed separately below the total
• FixedSetting a password in your account no longer shows a false failure
• FixedQuantity takeoff now labels the weight as net when the model provides no gross data, instead of mislabeling it gross
• ImprovedRedesigned My jobs, My listings, My hiring, My job search, Documents, Software, Projects and Check reports in the workspace: key numbers up top, and empty lists now point you to the next step
• NewNews and Events in the top bar now show a red dot when something new is posted; it clears once you open it
• ImprovedThe shop sidebar has a new "Mods" section where the crane thruster pack is sold; truck, crawler and loader crane shelves link to it too
• FixedShrinking the window height no longer cuts off the bottom of the 3D view
• ImprovedRedesigned News and Events pages with a headline story, date-first event cards and an upcoming-events sidebar
• ImprovedRedesigned homepage product animation, now covering drawing-to-model, auto drawings, quotes and lift planning
• NewThe crane cab console now shows the rated load at the hook's current position in real time; with a load on the hook it also shows gross weight and utilization, and turns amber or red when overloaded or about to tip
• ImprovedWith a section cut active, distance and angle measurements no longer snap to the hidden cut-away part; the snap marker is now colored by corner, edge, or face
• NewNew News and Events sections in the top bar for announcements, industry news and upcoming events

• NewNew for cranes: the thruster kit — fire it up to fly your crane, press G for a kickflip or flips in mid-air; land crooked and you'll need a rescue
• ImprovedThe drawing-to-model page now has My jobs / New job / Trash tabs; jobs waiting for you can be filtered at a glance and no longer show up twice
• ImprovedJobs waiting for your plan confirmation now show a compact card in the list; tap "Answer" to reply on the job page
• FixedClicking a component for the first time on a large model no longer slows down the whole site
• FixedFiltering components on large models no longer slows down the site for the weight total either; the first time it may show "calculating" and fill in shortly
• ImprovedThe drawing-to-model task page is now available in English
• FixedTotal surface area in the component filter no longer slows down the site on large models; the first time it may show "calculating" and fill in shortly
• NewDrawing-to-model jobs now show live step-by-step progress
• FixedSign-ins now last 30 days and keep renewing while you use the site
• NewDrawing-to-model adds a "Standard III" option with the same scope as Standard I and another drawing reader; paused or temporarily unavailable options now show greyed out, and Standard I jobs switch to Standard III automatically while it is unavailable
• NewDrawing-to-model adds a "Standard II" option with the same scope as "Standard I" but a different drawing reader, so you can pick either or compare them

• ImprovedDrawing-to-model "please confirm the plan" notifications now open that job's detail page so you can answer right away
• FixedIf an owner's personal nickname matches the company name, approval now renames the personal nickname to "<company> (personal)" so the company account can use the name; the nickname can be changed again anytime
• NewDrawing-to-model jobs now show a round-by-round history of what changed in each delivery and what you asked for; tick items that were not built to request them in one click; capture the 3D view and circle what needs changing as a feedback attachment
• NewDrawing-to-model feedback can now include screenshots, photos or supplementary drawings (paste screenshots directly); the job page lets you confirm the modeling plan in place and refreshes progress automatically
• NewCompany accounts can now switch to a company identity to post, reply to messages, upload models, buy plans and run their own team; owners can authorize admins to act for the company
• ImprovedFollowing a company now follows the company itself and survives an owner change; you get an in-site notice when it posts a job or joins a directory
• FixedFixed some bolt holes showing as black discs instead of real holes in certain models (takes effect after reconversion)
• NewCompanies can now add admins to maintain the company profile, and hand the company over to a team member
• ImprovedCompany pages can now be followed and messaged with an inquiry; directory applications are prefilled from your company details
• ImprovedEach user can now share up to 2 GB of documents and software in total
• NewNew company pages: once verified, a company gets its own public page listing its directory entries, job postings, shared documents and software, and public models; fill in company details under Account → Company account
• ImprovedDocuments and software can now be up to 1 GB each; documents over 200 MB go live after admin review
• NewShared documents and software can now be reported; admins review reports and remove items that break the rules
• NewDrawing-to-model jobs can now be deleted; deleted jobs go to a trash and can be restored within 30 days
• FixedFixed steel plates with extremely large arc edges missing from the 3D view in some models (applies to new uploads and reconversions)
• ImprovedDownload earnings for shared documents and software no longer require the downloader to own a model; any account older than 10 minutes counts
• NewNew Software section: share open-source tools as zip or tar.gz with a download price; listings go live after a security scan and review
• NewNew "Detailed" tier for drawing modeling, for projects with many connections and drawings; 50 coins are held on submission, settled by actual usage, the rest refunded.
• NewNew Detailing Plugins directory under Sharing & Partners: teams building modeling, connection, drawing/BOM and nesting/CNC plugins or offering custom development can list themselves on the map, searchable by their plugins
• ImprovedIP location now follows where you actually are; past activity keeps the location it had at the time
• NewNew Documents section: share method statements, calculations and other files with a download price, and earn most of what downloaders pay
• ImprovedOlder posts and comments now show an IP location too, based on the author's most recent sign-in
• ImprovedActivity cards such as unlocked achievements and newly shared models now show the IP location too
• NewModels published to the plaza or community now earn fragments as more real users view them
• NewProfiles, posts and comments now show the poster's IP location (province in China, country elsewhere), as of when it was posted
• ImprovedDrawing-to-Model now explains how coins are held, charged per round and refunded; job details gain a cost breakdown showing what each round charged and refunded
• FixedAssembly drawings now dimension both of two side-by-side identical members (twin-leg columns, ladder stringers), and give the height of plates offset from the base stiffeners
• NewPro Team and Ultra now have a shared team coin account: top up once, and members can pay for drawing-to-model and oversize uploads from it, with per-member access and monthly limits

• ImprovedThe "add your email" notice at the top can now be dismissed; it stays hidden for a week
• NewModel details page can now download the member list as a formatted Excel workbook and start a quote in one click
• FixedAvatars set in the account center now show in community posts; untick it in your public profile to hide it
• NewPages in the workspace sidebar and account center are now fully available in English — My modeling, My quotes, My hiring and others no longer switch back to Chinese
• NewSigning in with WeChat now uses your WeChat avatar if you haven't set one; you can re-sync it anytime under Security
• NewYou can now add your gender to your public profile (six options, including non-binary) and choose whether to show it
• ImprovedCommunity Discover now shows only posts from people; level-ups, leaderboards, shared models and other site updates moved to a new Site activity tab, which shows a red dot when there is something new
• NewWorkspace sidebar groups can now be collapsed by clicking their titles, and your browser remembers it; a red dot appears on Changelog when there is something new
• ImprovedThe account center now uses the same collapsible sidebar as the workspace
• ImprovedThe dashboard's recent-activity chart now also shows the shares you created
• ImprovedThe workspace sidebar adds a "My referrals" entry and groups items into Community, Models, Business, Hiring and Help
• ImprovedWorkspace refresh: the left sidebar can now collapse to icons, and the dashboard adds overview cards plus a recent-activity chart of your uploads and drawings over the last 7/30/90 days
• ImprovedShare links now default to three days, with a new three-day option

• FixedFixed WeChat Pay orders not being fulfilled when a WeChat discount or coupon was applied at payment
• ImprovedDashboard and community feed now use a pure black background so the motion stands out; a new header button lets you reduce motion anytime

• ImprovedBadge names, achievement and milestone descriptions, and tool dex labels now switch language with your preference
• ImprovedThe community feed is now available in English — the page, activity cards, comments and daily tasks all follow your language choice
• FixedAfter switching to English, visiting the community feed or My Models no longer silently switches you back to Chinese

• ImprovedThe quote model picker now has "My models" and "Saved" tabs; all saved models are listed, with a note on those the sharer hasn't opened for quoting
• NewShares can now let recipients quote from your model after saving it; turn it off any time and they can no longer re-pull quantities or show the 3D model on their quote links
• NewMy models is now split into All, Uploaded, Team, Saved and Bookmarks tabs, so saved models and bookmarked links each have their own view
• NewSaved models now show who shared them and can be removed from your list
• NewThe Coins & Fragments page now lists every coin and fragment transaction, with upload and share fees showing which model they were for
• ImprovedThe My Models background now changes shape as you scroll, like the community feed; on short pages it still cycles on its own
• ImprovedThe My Models background now cycles through steel structures: portal frame, multi-storey frame, pipe truss, crane girder and lattice tower
• ImprovedMy Models now loads more as you scroll down instead of paging
• FixedThe background animation no longer disappears after switching back and forth between My Models and the community feed
• NewNew Design Firms directory under Sharing & Partners: design institutes, structural engineering firms and steel design specialists can list themselves on the map, searchable by representative projects
• ImprovedThe community feed now shares the dashboard's animated particle backdrop and frosted-glass cards (dark theme)
• NewNew "Structural optimization" for portal-frame buildings: frames are recognised automatically, with steel intensity by member type and frames that are heavier than identical ones, one click to locate them in 3D
• ImprovedThe dashboard now has an animated particle backdrop with frosted-glass cards (dark theme; off when reduced motion is on)

• FixedBolt groups exported as a single fastener now show real holes in the plate instead of flickering black discs
• NewNew accounts now get 200 mechanical fragments and their first upload for free
• NewCoins can now be exchanged for mechanical fragments: 1 coin = 100 fragments, with 5% / 10% / 15% extra when exchanging 10 / 50 / 100+ coins at once
• NewUploading a model now costs mechanical fragments by file size (1 per MB), shown in the confirm dialog before uploading and refunded if conversion fails. Basic gets 10% off, Pro Team 20%, Ultra 50%
• NewPrivate share links now cost 10 mechanical fragments per day (with the same member discounts), confirmed before the link is created; publishing to the community or plaza stays free. Free accounts are no longer limited to sharing each file once
• ImprovedWhen a crane tips over, "Call a rescue" now sits at the top of the crane panel instead of inside the Lift tab
• FixedFixed round-pipe steel columns being drawn lying down in assembly drawings; they now stand upright with base elevation
• NewNew assembly drawing setting to add cumulative dimensions from the beam end to part locations
• NewNew assembly drawing setting "Always draw a top view for beams"
• ImprovedAssembly drawing material tables now show a weld weight row (1.5% of member weight, not added to it)
• ImprovedAssembly drawing material tables now list site connection bolts passing through the member (marked "Site")
• ImprovedAssembly drawings now dimension end depth and drop on tapered beams and beams with end copes
• ImprovedPart drawings now dimension every outline vertex, so tapers and end copes no longer need on-site measuring
• ImprovedThe View button stays disabled until conversion finishes, and the conversion progress banner can now be dismissed
• NewShares can now let recipients generate assembly and part drawings from their saved copy
• NewPeople who saved a shared model can now send feedback to the sharer from their own copy
• NewPart drawings now support hooked round bars (straight runs joined by arcs): unfolded length and bending table are shown
• FixedFixed some plates and sections being mostly or entirely cut away by mistake in 3D, part drawings and assembly drawings; restored parts are noted on the part drawing so you can check them against the model
• NewAssembly drawings now support rolled plates: assemblies containing rolled plates are drawn, with the plates shown as true arcs
• NewHelical stair stringers, curved sections and bent pipes now get part drawings: drawn developed, with bend radius, angle, rise and end bevels, plus a setting-out table for pipes that are not circular arcs
• FixedFixed issue replies, quotes, shares and other places showing times 8 hours early
• NewMark up problems on assembly and part drawings (boxes, arrows, text) and send them to the admins
• NewNew "Report to admins" in the 3D viewer, with an annotated snapshot and the current view; you get notified when it's handled
• ImprovedChanging an issue's status or assignee and commenting now respond instantly; quick successive changes only notify once, and undoing a mistake notifies no one
• ImprovedRemoving a saved link or a model from a project now takes effect immediately and rolls back with a reason if it fails

• ImprovedPart drawings, plate-split checks and batch part-drawing export are faster: parts open without a long wait after you open a model, and the site no longer slows down
• ImprovedFollowing people, voting on feedback and liking models now respond instantly and roll back if they fail
• ImprovedFeedback comments and direct messages show up as soon as you send them; failed messages can be retried
• ImprovedIssues reported from a share link now show the visitor's name; signed-in visitors get notified when the status changes
• ImprovedComments now show when they were posted, read oldest first, and you can reply to a comment — replies thread under it
• ImprovedPosting, deleting comments and liking now respond instantly
• FixedCustom DXF drawing frames with a full-height title strip on the right are now accepted
• ImprovedProfile activity tab now shows level-ups, published models, job posts and more, not just posts
• FixedEditing a model's project name or description no longer changes it for other people who uploaded the same file
• ImprovedRedesigned Learn section: totals on the landing page, your progress on topics and the node library, one-click "continue" on topic pages, and cleaner quiz and 3D node layouts
• FixedRenaming a model no longer renames it for other people who uploaded the same file
• ImprovedCommunity posts and system posts now both show "N viewers · N views"; repeat views count toward views
• Improved"New members" posts now show the running total for the day (10, 20, 30…)
• NewThe community feed can now pin a member's published models as one "model portfolio" post that opens their profile's Models tab
• Improved"New members" posts in the community feed now come in batches of 10, and earlier posts stay in place when more people join
• NewSystem posts in the community feed (achievements, new models, game podiums, jobs, listings, updates) can now be liked and commented on, and show view counts
• ImprovedDrawing modeling: re-uploading the exact drawings of a failed job now re-queues that job instead of starting over
• ImprovedDrawing-to-model now holds coins only once at submission; answering questions or requesting revisions no longer requires a new hold, each round is charged from your balance by actual usage
• NewDaily tasks now come in easy, normal and hard tiers, some need several runs, rewards scale with difficulty, plus a bonus for clearing all three
• NewDaily tasks only pick what your plan can do, and mini-game tasks now name a specific game
• ImprovedOpening assembly drawings on bolt-heavy models is faster (about 40% quicker data lookup)
• ImprovedAssembly drawings with slotted-hole bolts now generate about 30% faster
• NewNew Learn topic on drawing standards (GB/T 50001, GB/T 50105) in 8 lessons covering sheets, lines, symbols, dimensioning and steel sections, bolts and welds, compared with mechanical dimensioning
• ImprovedAssembly drawings with many bolts now generate about 2-3x faster
• ImprovedAssembly drawings keep parallel dimension lines on the same side evenly spaced, even when one line's text is staggered
• ImprovedGB 55006 topic now notes that the seismic steel limits (yield-to-tensile ratio ≤ 0.85, elongation ≥ 20%) are no longer mandatory clauses and must be stated in design documents
• ImprovedGB 55006 topic now maps 101 abolished mandatory clauses from 18 standards, and notes that load factors follow GB 55001 and seismic adjustment factors follow GB 55002
• ImprovedAssembly drawing annotations follow the national drafting standard more closely: vertical dimension ticks now slant "\", extension lines start 2mm from the part, callouts with Chinese text are 3mm high, revision numbers 2.5mm

Account and organization verification

• ImprovedFaster assembly and part drawings: from the second drawing of a model onward they come up much faster, cutting large models from 10+ seconds to about a second.
• ImprovedFaster first assembly drawing: the first drawing of a large model no longer waits 10+ seconds.
• ImprovedFaster first assembly drawing, including for models converted earlier.
• ImprovedFaster assembly drawings: even the first drawing comes up quickly.
• ImprovedThe GB 55006 topic now maps the abolished mandatory clauses of design standards (GB 50017, JGJ 99, JGJ 7, etc.) clause by clause
• ImprovedAssembly drawings: long columns and beams now break out the plain middle stretch with break lines so the end connections are drawn larger, with true-length dimensions; turn off "Break long members" in the drawing dialog
• NewNew Learn topic on the general code for steel structures (GB 55006-2021) in 8 lessons, mapping old mandatory clauses to the new code; the acceptance topic now includes all tolerance tables
• NewNew Learn topic on steel construction quality acceptance (GB 50205-2020): 11 lessons on what to inspect, sampling and tolerances, each with a quiz
• ImprovedAssembly drawings: when a splice plate overhangs the beam end, dimensions now reference the beam end and show the beam length and plate overhang
• FixedFix assembly drawings wrongly refused as "too large" on some large models
• ImprovedSparse assembly drawings now center their views vertically on the sheet instead of crowding the top half
• ImprovedRedesigned "My quotes": filter by type, search, and see whether each quote was sent and how often the client opened it
• ImprovedQuote detail pages now stay inside the workspace with the sidebar visible
• ImprovedThe workspace sidebar now has "My modeling" and "My quotes"; the Takeoff & Quotes page lets you post a takeoff request and browse listed estimators
• ImprovedDrawing-to-model deliveries can now be accepted directly, and the delivery checklist says what to do with each item
• ImprovedRedesigned drawing-to-model page: drag-and-drop upload with progress, pending actions pinned on top, clearer job progress
• ImprovedThe account Security page opens faster; WeChat follow status now fills in afterwards
• ImprovedThe community feed is now called "同行圈" in Chinese; the daily growth card, referral banner and resources moved there from My models
• ImprovedNicknames are now unique across the site, and invisible characters can no longer be used as a nickname
• ImprovedPassword fields for shares and quotes now have a show/hide toggle
• ImprovedEdit passwords on quote links now only count wrong attempts; quote owners can lift a lockout from the quote page
• ImprovedSwitching pages in the workspace sidebar is smoother; header level, coins and badges no longer flicker
• FixedOther people's profiles no longer show your own shortcuts like Notifications and Profile settings; your own profile header no longer squeezes your name into a vertical column on narrower windows
• ImprovedWeChat accounts without an email now see a persistent banner with a one-click "Add email"
• NewAfter scanning a component QR code, tap "Show in full model" to highlight and locate it within the whole model
• ImprovedPeer activity now shows each person's avatar and name, with the event type and details laid out separately
• ImprovedLessons and 3D connection pages now have an outline sidebar showing where you are and what you've already viewed
• NewLearn now covers 12 chapters and 144 steel details — frames, trusses, space grids, SRC, prefab systems, floor decks, bearings, envelopes, bridges, coatings and erection methods — each as a rotatable 3D model with part labels and step-by-step assembly.
• ImprovedLearn · Portal frames rewritten against the current 23G518-1 (no crane) and 19G518-3 (with crane) atlases, with column base, bracing and connection values updated
• ImprovedOrganization verification is now open to every account: upload a business license and pay the review fee for manual review; it is valid for one year and can be renewed before expiry. Posting jobs in the talent market now requires organization verification, and postings show the verified company name
• ImprovedThe community feed now loads older posts automatically as you scroll, with a back-to-top button once you are far down
• NewLearn section revamped: alongside the 3D joint library there are now 7 topics with 51 lessons — from reading drawings to portal frames, crane girders, SRC, envelope and railings, and pipe racks — each with 3D joints and a self-check quiz
• NewThe community feed now posts a daily mini-game podium and a shout-out whenever someone matches the ideal answer; you can opt out of showing your achievements and game results in profile settings
• NewWorkspace now opens on the community feed, listed above My models; the feed also shows peers' achievements, level-ups, published models, daily game wins, new jobs, listings and requests, with unseen items marked New
• NewAccount verification: paid members with WeChat linked get a blue check; Ultra plans can apply for a gold verified-organization badge that team members can display
• NewDirect messages can be limited to verified users; the talent market can filter to verified organizations
• NewNew Learn section: 24 portal-frame connection details as interactive 3D models with detail views and step-by-step erection
• NewTalent Market listings can now be reported; admins review and take down fake jobs or fee-charging agents
• ImprovedPlan-writing jobs now list hoisting and installation plans as a single scope
• NewNew Talent Market: steel-industry job postings and job seekers, from welders and fitters to detailers, sales and management; free to post
• NewWorkspace adds My hiring and My job search to close, refresh and edit your listings
• NewNew "My listings" in the workspace: review status and public info for every directory and talent track, with fees and visibility in one place
• NewFree accounts can now appear on job board talent walls for 1 coin or 100 fragments per day
• NewNew "My jobs" in the workspace: bids and jobs across detailing, plan writing and estimating, grouped by progress with pending payouts

• NewNew job boards for construction plan writing and quantity estimating, working the same way as the detailing board
• NewQuotes now state the quote type (e.g. subcontract with or without materials, fabrication only) and the settlement basis (theoretical or weighed weight), also shown on the WeChat share card
• ImprovedOn phones the workspace sidebar now opens as a drawer menu; Messages get their own sidebar entry with an unread count
• FixedOpening a model from Community, the Plaza or Rankings now lets the top-left Back button return to that list instead of the home page
• ImprovedThe "Partners" header menu is now called "Sharing & Partners"
• ImprovedUnit-price analysis in BOQ quotes can now take the weight per set straight from the linked model, matched by assembly mark or picked by hand
• ImprovedCommunity, Explore and Rankings drop the tab row in their headers; switch via the sidebar, which now lists Member models and renames Community to Community feed
• ImprovedRedesigned the model details page with the workspace sidebar; drawing and label exports now live in one card
• ImprovedCommunity, Explore and Rankings now sit under a "Discover" heading in the workspace sidebar
• FixedOn phones the messages page no longer pushes the input box off screen
• ImprovedMessages, profiles and public profile settings now keep the workspace sidebar too
• ImprovedThe workspace sidebar now stays put when you open Community, Explore, Rankings, Guides, Changelog or Feedback from it
• ImprovedThe Discover menu left the top bar; Community, Explore, Rankings, Guides and more now live in the workspace sidebar and the avatar menu
• ImprovedUnit-price analysis in BOQ quotes now shows the weight per set (auto-summed from weight-based material lines) and the equivalent price per tonne
• NewSteel handbook section diagrams now include a rotatable 3D view, with full-screen mode
• FixedCost file viewer now shows a clear message with a reload button if the parser fails to load during a site update
• ImprovedProjects and Check reports moved into the workspace, switchable from the left sidebar
• NewBill-of-quantities quotes now support unit-price analysis: break a per-set item into materials and processes with quoted price and your own cost to see the margin per set, and optionally show a cost-free analysis table on the client quote and Excel export
• ImprovedEach card on the Tools page now has a small preview strip
• NewThe header's Partners and Discover menus now open on hover
• NewTools now include a steel handbook (weight, surface area and paint estimates with GB section tables), a document privacy cleaner (strip author, company and other hidden metadata from Word, Excel and PDF files) and a GCFX cost file viewer; no sign-in needed and files never leave your browser
• New"Takeoff & Quotes" and "Steel Plans" now live in the header's Partners menu
• NewNew Supply Chain directory: steel mills, traders, coatings, welding consumables, fasteners and hardware suppliers can list themselves on the map, searchable by product
• NewDetailing, Fabrication & Install and Supply Chain are now grouped under a Partners menu in the header
• FixedDragging the elevation ruler off the model now keeps it beside the model instead of flinging it far away
• NewNew Tools menu with a paint color picker: look up GB/T 3181 and RAL colors and find the closest match in the other system
• ImprovedDragging the elevation ruler is smoother and no longer drops frames on high-refresh displays
• ImprovedGalvanizing plants can now apply to join the Fabrication & Installation directory
• NewEditing a bill-of-quantities quote on a phone now shows one card per item; tap a card to change its prices instead of scrolling a wide table
• FixedQuote titles on phones are no longer squeezed into a narrow strip by the buttons
• ImprovedModels with many heavily cut members now convert much faster (one case dropped from 8 minutes to about 2)
• ImprovedQuotes on mobile now list items as cards instead of a wide table, with the total shown up top
• ImprovedVendor contacts can now be tagged with the business they handle; filtering by type lists the matching contacts first
• NewDetailing companies can now join the detailing marketplace and show up under their company name
• ImprovedVendor listings in Fabrication & Install can now have several contacts, each with the region they cover
• NewItemized quotes can now have an edit password: anyone with the quote link and that password can adjust prices and notes without signing in; your costs stay hidden
• ImprovedOverseas listing applications now check that the map pin lies inside the selected country
• FixedFixed complex models being wrongly marked as failed about five minutes into conversion
• NewProfiles now have a Models tab listing the person's models shared to the plaza and community
• NewNew "Fabrication & Install" directory: fabricators, installers, crews, subcontractors and general contractors can apply to be listed on the world map after review and an annual fee

• ImprovedBeams and angles with end cuts convert more accurately, fixing broken beam ends in some models
• ImprovedLarge models with many bolts use less memory when opened
• FixedFixed some industrial building models opening rotated on their side together with the grid
• ImprovedBOQ quote costs can be entered per component (auxiliary material, fabrication, transport, installation) with gross profit shown per component
• NewBOQ quotes can record internal cost per line and show gross profit and margin in the editor (hidden from clients)
• ImprovedBOQ quotes now list management fee and profit in the totals instead of folding them into unit prices
• ImprovedList-based quotes can now exclude main materials; the client quote page now matches the model quote style
• NewList-based quotes can now link multiple models; clients see the 3D models above the quote and can switch between them
• ImprovedShared quotes can now be exported to PDF with A4 page layout; inside WeChat the page explains how to open it in a browser first
• ImprovedClient-facing quotes no longer show the blended price per tonne
• NewNew BOQ quotes: upload a bill of quantities spreadsheet, price each item by material, fabrication, transport and installation, then share a quote link with your client or export it to Excel
• NewQuotes can be duplicated so one model can carry several quotes for different audiences; the editor lists the model's other quotes
• NewQuote client links now come with a QR code, and forwarding in WeChat shows a quote card with the project name
• ImprovedSteel sections and plates render with true fillets and round tubes; models with many members open faster and use less memory
• ImprovedModels with many bolt groups use even less memory when opened
• NewDaily games: unlock today's answer for 100 fragments or 1 coin — you can still submit and rank as usual
• NewStock cutting, Nesting and Nesting Pro now publish yesterday's best answer and yesterday's top player
• NewOptional two-factor sign-in with an authenticator app (e.g. Google Authenticator) in Account Security
• NewTorch path Pro adds "Yesterday's solution": see yesterday's distance and time reference routes replayed step by step, with speed control
• ImprovedModels with many bolts use less memory when opened
• ImprovedTorch path Pro now animates every cut too: rapid travel, pierce sparks, burning along edges and holes, parts dropping out
• ImprovedTorch Path now animates every cut: the torch travels, pierces and burns around holes and outlines with sparks before the part drops
• NewTorch Path adds "Yesterday's solution": see yesterday's optimal route replayed cut by cut, with speed control
• ImprovedProfile pages now use tabs for posts, badges, growth and connections; the growth panel lives in its own tab
• ImprovedSwitch your own profile to "what visitors see" with one click
• FixedFixed bolt holes on some models showing as black cylinders instead of being cut
• NewThe detailing jobs hall now lists approved detailers; when applying you can opt in to a public profile (Pro Team and above)
• NewHidden badge tiers (Star and Legend) for referrals, uploads and total steel weight
• NewDaily mini-games get their own badges: play streaks, daily #1, perfect nesting, cutting and stock runs

• ImprovedSteel members with many bolt holes now convert more accurately: holes are cut together with other cuts, no more volume glitches
• ImprovedFaster, more accurate conversion for steel models: cut beams and plates no longer come out with missing faces or uncut ends, and tube weights now match the true section
• NewBadges on your profile now open a detail card with an animated medal, unlock history per tier, and a share link
• ImprovedCommunity posts, comments, profiles, nicknames, model and project names are now checked for inappropriate content and contact details
• ImprovedDetailing requests and bid notes now block phone numbers and chat IDs; put contact details in the private contact fields, shown to the assignee after payment
• FixedDetailing requests now say the payment goes to the platform, which pays the detailer after you accept the delivery.
• NewNew Detailing marketplace: post a detailing job, approved detailers bid, and payment is held by the platform until you accept the delivery
• NewDetailing now recruits detailers — apply with the same profile you use for other tracks
• ImprovedTakeoff & quotes now require the Basic plan or above; drawing-to-model stays open to everyone
• NewQuotes now recruits estimators — apply alongside other tracks with one profile
• NewSteel Plans now recruits method-statement writers: sign in, fill in one profile, and apply to one or more tracks
• NewNew "Steel Plans" entry in the top bar: draft hazardous-work method statements for steel erection online, with automatic hazard-level classification, pre-submission compliance checks and one-click Word export
• ImprovedThe Chinese product name is now 海纳尔·钢构助手 (SteelCopilot stays the same)
• NewNew "Takeoff & Quotes" entry in the top bar: generate a quote straight from your own IFC model; drawing-to-model is now open to all users, billed per round in coins
• NewComponent filter results now show the total surface area, matching the quantity takeoff
• ImprovedQuotes now use a professional layout: pre-tax unit prices and an itemised cost summary (material, wastage, fabrication, painting, freight, installation, overhead, profit, tax) with the total in Chinese capital numerals
• ImprovedThe check-in button now shows a red dot until you check in for the day
• ImprovedBar Cutting now counts offcuts at half their length, so using offcuts first improves your score and rank (replaces the extra-fragment bonus)
• NewNew daily game "Torch path Pro": a whole sheet of edge-sharing parts timed with fiber laser figures; choose pierce, bridge cut or edge start, with separate boards for distance and time
• ImprovedBar Cutting parts can now be dragged onto bars, between bars, or back to undo; offcuts are listed first, and using one earns 5 extra fragments a day
• ImprovedBar Cutting now draws unplaced pieces as bars to the same scale as the stock, so lengths are visible at a glance

• NewNew daily mini-game "Bar Cutting": assign the cut list to bars of different lengths and use the least steel, with a daily fragment reward
• ImprovedNesting · Pro is easier: smaller parts, fewer defect cells, and you can now see the next three parts
• NewNew mini-game "Nesting · Pro": parts arrive one at a time with no look-ahead beyond the next, no undo, and defects on the plate; best of 3 runs a day goes on the leaderboard, reach 60% for fragments
• FixedFixed grainy noise across the viewer's dark backgrounds (aurora, starry sky)
• ImprovedRankings gain a daily "Torch path" board; right-click the sheet in Torch Path to undo the last cut
• NewNew daily mini-game "Torch Path": choose the cutting order and pierce corners to get the shortest torch travel, with a daily fragment reward
• FixedFixed placed parts in Daily nesting sometimes not responding to drag until a neighbouring part was removed
• ImprovedDaily nesting on desktop now shows the plate and parts side by side, so you can drag without scrolling
• FixedCommunity notification badge now clears once you open your notifications

• ImprovedAssembly drawing QR codes are shorter and easier to scan; when the model is shared, anyone can scan to view the 3D component without signing in
• NewAssembly drawings add an oblique view for angled lugs and gusset plates, dimensioning their bolt holes at true length
• FixedAssembly drawings no longer leave bolt holes on knee-brace plates and angled lugs unlocated
• ImprovedAssembly drawings now locate purlin cleats and knee-brace plates along the beam in the main view, measured to the bolted face toward the purlin; flange bevels are no longer dimensioned as offsets

More achievements and a tool collection

• ImprovedTie rod thread length is now saved per assembly mark, so other computers, teammates and batch export all use the same value; it can also be set as the model default for other tie rods
• FixedDrawing-count milestones now count only drawings actually generated; reopening the same member no longer counts twice
• FixedThe viewer's sky backgrounds now have a ground plane, so models stand on the ground instead of floating
• ImprovedAssembly drawing dialog gains a hover magnifier that enlarges whatever is under the mouse
• ImprovedAssembly drawings can now be zoomed (scroll, double-click, pinch) and panned in the dialog
• FixedFixed the shop page crashing when switching between Livery and Figure
• ImprovedShop categories moved to a sidebar, so Livery and Figure are no longer cut off
• NewWe passed 1,000 users — thank you! Claim 1,000 fragments from your notifications
• NewShop items can now be gifted: pay and get a claim link — whoever opens it gets the item; track sent gifts in the billing center
• NewViewer backgrounds are now painted on the sky and turn with the camera: dark theme gets a flowing green Aurora and a new Starry sky (stars drift away from the cursor); light theme gets Clear sky, Drifting clouds and Dawn, and each theme remembers its own choice
• NewNew in the shop: jetpack and the Monkey King costume — say "the Chinese can fly" to ride the somersault cloud, T to twirl the staff, B to put it away
• NewThe jetpack is now a shop item; on shared links, visitors can fly if the model owner owns it
• ImprovedAssembly drawings: fishbone marks show which plate face a dimension refers to; end-plate sections merge hole chains and locate flanges and stiffeners; purlin cleats and brace plates on welded beams are now located along the beam; sections show only their own connection and include all bolt holes
• ImprovedAssembly drawing material tables now list part marks in natural order (3Y-8, 3Y-9, 3Y-10…)
• ImprovedComponent, QR label, AR and profile pages now also show the upgrading notice during a deploy and recover on their own; error pages share one consistent look
• FixedWhile a new version is being deployed, an idle page no longer turns into a blank "503"; it shows an upgrading notice and refreshes itself once the site is back
• ImprovedReflective sheets can now be deleted one by one or all at once from the total station panel
• NewViewer backgrounds: new animated "Aurora" backdrop (slowly drifting soft glow with fine grain, follows light/dark theme), switch it in the View menu or Preferences
• ImprovedDistance and angle measuring now live under a single Measure button
• ImprovedTotal stations have their own entry (Present → Scene reference → Total station) instead of sitting among lifting equipment
• ImprovedCrawler cranes, tower cranes and drones no longer need a plate; give them a nickname instead
• ImprovedYou can add an optional nickname to each unit when buying equipment; total stations and other unplated equipment no longer ask for a plate at checkout
• ImprovedFaster page switches from the top bar, account center and project list: loading starts on hover
• Improved"My garage" is now "My equipment", grouped by category, with names and plates no longer cut off
• ImprovedTotal stations no longer need a plate and can have a nickname; vehicles can add an optional nickname too
• ImprovedClearer wording in the crane, tower crane, aerial platform, forklift and drone panels
• NewEveryone now also gets a free total station; claim your free vehicle and total station in the shop, with reminders if you haven't
• ImprovedThe shop is now just "Shop"; clearer wording in the total station panel and one-click sheets
• NewNew "Survey instruments" in the shop: 6 total stations (South, Kolida, Sokkia, Topcon, Leica). Place one in a model to set up, backsight, measure coordinates and stake out; the measurement log is shared with your team and exports to CSV. Stick reflective sheets with your avatar (R to pick one up, F to stick or peel), or pay to auto-stick them on column bases, column tops or beam ends. Plus 8 survey achievements
• NewDashboard shows a red dot on Daily nesting until you play it today; new Daily nesting leaderboard, and your weekly rank on the dashboard
• NewAssembly drawings now draw revision clouds: pick the previous model to compare with in the dialog, and parts changed since that model's exported drawing of the same assembly are clouded, the revision number goes up by one, and removed parts are listed on the sheet. Each export, print or batch export records the issued revision
• New13 new milestones (issues resolved, health checks, clash checks, completed projects, installed steel, share visitors, referrals, teammates, live days, live viewers, active days, anniversary, fleet size), grouped into five sections on the growth page
• NewSlip off a beam or let go of a column while clipped in and the lanyard now catches you, then lowers you to the ground unhurt
• NewThe assembly drawing dialog has a "Draw columns horizontally" option: columns are laid out like beams with the base at the left and the base elevation noted on the sheet, so long columns get about twice the scale. Saved per model on the site and used by teammates and batch export
• NewRighting a tipped crane with another crane now earns badges: Helping hand and Rescue crew, and righting someone else's crane counts as Good Samaritan
• NewWith several cranes in a model, drive another crane over to lift a tipped one back upright — it has to be able to take the load, and it doesn't use up a rescue
• ImprovedAssembly drawings now dimension isolated bolt holes in place on the part instead of pushing them outside the view, and identical hole chains at both ends are drawn once
• ImprovedAssembly drawings now dimension every part and bolt hole back to the main part, adding missing directions automatically; sections no longer repeat dimensions already clear in the main views; section markers stay inside the frame
• NewYour figure now auto-clips into a full-body harness when climbing columns or walking beams above 2 m, hooked to the column or a lifeline along the beam
• New19 new achievements across work, live streaming, equipment and tools — there is even a hidden one for tipping a crane over
• NewNew tool collection: each viewer tool lights up the first time you use it
• NewUnlocking an achievement now plays an animation; achievements show how rare they are, and you can pin 3 badges to your profile
• NewThe equipment panel shows a "days without incident" sign, and tipping over brings up an accident investigation report
• NewThe assembly drawing dialog has a "Drawing notes" box (plug weld, do not paint top surface, one per line); notes are saved per assembly mark, drawn above the main view, and used by teammates and batch export
• NewChecker plates are labelled on assembly drawings automatically: "pattern face up" when laid flat, "pattern face out" when standing
• NewThe assembly drawing dialog has a "Use lengthened A3 (A3+) when it does not fit" option: off keeps A3 only and splits into several sheets; on tries 630 / 841 / 1051 × 297 lengthened sheets first. A2 and larger sheets appear in the frame editor only after turning on "Show A2 and larger"
• ImprovedThe main view now shows the assembly mark on the main part; shear studs are drawn with their own symbol and labelled "n-Stud Φd×L", separate from holes
• ImprovedAssembly drawings cut each identical section once with a single section mark, merge sections that another view already covers, keep the overall dimension outermost, and show web holes in purlin sections
• NewSet the rod thread length in the assembly drawing dialog (remembered per model and used by batch export) instead of a fixed 60 mm

Game elements: streak freezes, seasons, equipment dex and daily nesting

• NewCondition rows can now filter on material and any IFC property in the model (phase, user fields…), freely combined with mark, category and other conditions
• NewComponent filter and batch assembly drawing export now support condition rows: stack mark, category, profile, length and more with AND / OR, brackets and * wildcards
• FixedFixed your own vehicle being placed into someone else's model when you opened it
• NewOffline models now support the reference person too: move, resize, duplicate and locate
• ImprovedFeedback screenshots now open in a full-screen viewer: double-click or pinch to zoom, drag to pan, swipe to flip on phones
• ImprovedThe homepage sample drawing viewer is now full-screen, with zoom in/out/fit buttons and a zoom readout; swipe to flip on phones
• ImprovedHomepage sample assembly drawings can now be zoomed: pinch, scroll or double-click to zoom, drag to pan
• ImprovedDashboard tidied up: your models are back above the fold, daily check-in and tasks fold into one row (expand for details), and the side resources are more compact
• ImprovedThe entry to your models is now called "Dashboard" everywhere — home page button, top nav and back links
• ImprovedLevel titles are now ranked tiers — Bronze, Silver, Gold … up to Glorious King at Lv50 — and show on English pages too
• NewNew equipment dex: models light up once you place them in a model, owned ones are marked, and completing a category earns a badge
• NewNew daily nesting game: fit the day's parts onto a steel plate and climb today's leaderboard; submit once a day to earn fragments
• NewNew Levels leaderboard ranked by XP earned this week, with an all-time view; signed-in users see their own rank and how far they are from the next spot
• NewNew streak freezes: trade 50 fragments for one and a missed day won't break your check-in streak (hold up to 2)
• NewNew monthly season: earn XP during the month to unlock 7 fragment reward tiers, with a season badge for clearing them all
• ImprovedNew Account center: profile, security, preferences, billing, team, coins, garage and referrals in one sidebar
• ImprovedShop categories now have their own pages and shareable links; coin balance shows in the header and the avatar menu is shorter
• ImprovedRedesigned equipment shop: catalogue first, sticky filters, tidier cards, click the drawing to preview in 3D
• NewBuy equipment with coins straight from the shop cards, no checkout detour
• ImprovedPrivacy notice updated: online payments go through WeChat Pay and we keep only order and transaction numbers; order and invoice details are now listed
• FixedAssembly drawings: for models exported lying on their side, which way is up is now taken from the file's own grid first; when it still can't be told, the drawing warns that it may be upside down and batch export lists it for review
• ImprovedAssembly drawings: bolt-hole positions at both ends of braces and purlins now share one dimension line instead of one full-length line per hole group
• FixedAssembly and part drawings: bolt holes in angles were missing entirely when the bolts had equal two-way slot values (common on column bracing); they are now drawn
• NewCoins are here: top up (larger top-ups include bonus coins) and spend them on equipment, liveries and crane rescues in the shop
• ImprovedAssembly drawings: members with asymmetric sections (angle knee braces, channels) get a cross-section showing which way the legs and opening face; round-bar braces with a turnbuckle now dimension each rod's length and the gap between them
• NewPurlins, tie rods and sleeves now get assembly drawings: laid horizontally with a section view, purlin holes on different lines dimensioned separately, tie rods noting thread length at both ends, and bent tie rods dimensioned at each bend with the developed cut length in the bill of materials

• NewMachine fragments can now be redeemed: trade them for equipment and liveries in the shop, or for a crane rescue when you run out
• FixedAssembly drawings: the vertical direction is now worked out from the model itself and no longer changes with the viewer's orientation setting
• NewNew growth system: daily check-in for machine fragments, three daily tasks, XP levels with titles, and milestone and achievement badges on your profile
• FixedIn welded box split review, bolt holes facing each other through both webs now appear on both web plates instead of only one
• NewThe upload precheck now flags models that will open lying down or upside down (rotated export coordinates); they are straightened automatically when conversion finishes, or you are told to orient them manually or re-export
• FixedSettings and profile pages no longer shrink to the left half of the screen on phones
• FixedAssembly drawings: slotted holes modelled as hole-only fasteners are now labelled with their slot width × length instead of "Φ?"
• FixedThe upload box no longer shows an overlapping browser "Choose File" label while a model is uploading
• FixedIn the component filter, "Starts with" now also matches marks with floor numbers (e.g. 1GL1, 2E-WKZ-150), consistent with ticking the prefix
• FixedAssembly drawings: for models that were re-oriented in the viewer (exported lying on their side), beams are no longer drawn standing up as columns with a wrong column-base elevation
• ImprovedBatch assembly drawing export now lists the mark prefixes found in the model, so you can tick them instead of typing
• ImprovedA tipped-over unit can no longer be deleted; call a rescue to right it first
• NewScissor lifts and boom lifts now show their licence plate on the rear in 3D
• NewA tipped-over crane now needs a rescue to be righted: 2 free per day, then ¥100 each
• ImprovedAssembly drawings: identical connections at different heights on a column now share one enlarged detail, and the plate positions from the column base are combined into a single dimension chain
• FixedFixed WeChat sign-in (including scanning the desktop QR code) sometimes failing with "login request expired"
• FixedIn person view, pinch or scroll now pulls the camera back up to 200 m instead of stopping at about 20 m
• NewVehicle plates now appear on the front and rear of the equipment in 3D — Chinese yellow plates by default, with German, UK, US and Japanese styles selectable in My Garage
• NewAssembly drawings: when dimensions at a column-top or mid-height connection crowd together, that part is drawn as an enlarged detail (e.g. "DETAIL B 1:15") with the hole spacing; the main view keeps only the plate positions
• FixedAssembly drawings: dimension chain segments now add up to the overall length; equal-spacing labels "n@p" show a decimal when the rounded pitch would not multiply back to the real length (e.g. stair treads "9@194.7")
• ImprovedTidier top hint bar in person view and crane driving on phones
• ImprovedAssembly drawings: plan-skewed ends and flanges cut back from the web end are now dimensioned, with segments that add up to the overall length; slotted holes cut into parts show their width and length
• ImprovedOutdated browsers (e.g. on Windows 7) now see a notice that some colors and icons may not display correctly
• FixedSettings no longer repeats the notice after linking WeChat or merging accounts
• FixedBatch assembly drawing export now matches mark prefixes like the component filter: GL and WKZ also find marks with floor or zone numbers such as 1GL1 and 2E-WKZ-150
• ImprovedAssembly drawings: single-plate assemblies (site connection plates, cover plates) now dimension slots, chamfers, notches and arc radii, and no longer show a column base elevation
• ImprovedPerson view on phones: Jump is now a large round button at the bottom left that fires on touch and stays visible next to columns; with a jetpack, Ascend takes off from the ground
• FixedFixed running up some stairs failing on phones when the frame rate dropped, sending the person underneath the flight
• FixedAssembly drawings: sections no longer show stray holes from elsewhere on the member; slotted holes are labelled with width × length instead of "Φ?"; stairs with a pair of holes per tread are dimensioned as "n@going" with the in-pair spacing given once
• ImprovedAssembly drawings now support channel sections; exports with bolt holes cut into the parts now get hole callouts, hole spacing, and complete specs and weights in the bill of materials
• FixedFixed offline component search freezing after typing the first character
• ImprovedAssembly drawings: bare members no longer get an empty top view, concrete members are skipped, multiple plate projections in sections are dimensioned separately, and the bolt row shows the per-assembly count
• FixedFixed component search hanging on large models in offline mode
• ImprovedAssembly drawing sections and end views now dimension how far connection and end plates project beyond the main member
• ImprovedAssembly drawings now add back, bottom, end and local views where needed, cut a section at every connection type, and dimension each feature only once; when a sheet is too full the scale shrinks while it stays legible, otherwise the drawing continues on a second sheet
• NewCargo drones can now tandem lift: FlyCart 200 supports 2–4 aircraft on one load, with the total checked against the manufacturer's printed four-aircraft rating, derated per aircraft.
• NewAdded cargo drones (3 models): checks payload against site altitude and battery setup, plus rope length and wind limits from the manufacturer; each drone has its own number and registration.
• NewLifting equipment is now bought per vehicle: buy several of a model at once, each with its own plate number; each vehicle can be placed once per model, and everyone gets one free vehicle.
• ImprovedMore accurate homepage stats: total steel weight no longer includes concrete, slabs or floor deck, and members are counted as whole members rather than counting every bolt, weld and part.
• NewAdded telehandlers (4 models): checks how much the forks can carry at a given height and reach using the manufacturer's load chart, for stabilisers down and up, stepping down one band near zone edges and pointing to the manufacturer's chart.
• ImprovedA crane is now placed automatically the first time a model is opened, for a sense of scale; once removed it won't come back, and it can be turned off in preferences.
• NewAdded counterbalance forklifts (4 models): checks rated capacity and overload at a given fork height and load centre using the manufacturer's capacity and mast tables, with a conservative estimate when the load centre goes beyond the printed table.
• ImprovedPricing update: membership plans (monthly and yearly) and crane add-ons now cost 10× the previous price; orders already placed keep their original amount.
• ImprovedThe 3D preview in the equipment shop now supports right-drag panning and closer zoom for cab and boom-head details; double-click to reset.
• ImprovedCranes now look closer to each brand's real machines: brand-specific cab fronts, warning panels on the boom head and rear, and Zoomlion's two-tone boom.

• NewAdded boom lifts (3 telescopic, 5 articulating): checks whether the platform can reach a given height and outreach together using the manufacturer's working-range chart, flags positions near the edge, and checks rated load and occupants.
• NewNew scissor lifts (5 aerial work platforms): checks max platform height, rated load and occupancy from manufacturer specs, separately for outdoor and indoor use
• NewNew loader cranes: 4 straight-boom truck-mounted cranes (5–20 t) with manufacturer load charts; no rating over the cab
• NewLifting equipment can now be repositioned from the list by clicking a new spot; press R or the rotate button while placing to turn it
• NewNew Sany SCC4000A-2 (400 t crawler) with superlift: the rating switches to the superlift load chart and the 3D model adds the superlift mast and ballast tray
• FixedFixed the lifting equipment list ignoring the Delete confirmation and the purchase dialog closing the whole panel; Rename now focuses the name field
• New12 cranes (Liebherr, Tadano, Sany, Kobelco) now offer the manufacturer's counterweight steps; the rating comes straight from that step's load chart and the 3D counterweight stack follows
• FixedEar-plate slotted holes now open correctly when a round-bar brace passes through them at an angle
• Improved15 more cranes (Liebherr, Zoomlion, Sany SAC, Tadano and others) can switch to the auxiliary hook, rated from the single-line hook in the manufacturer's hook-block table

• NewMobile and crawler cranes can switch between the main hook and the auxiliary hook; the aux hook hangs from the boom-point sheave and its rating is capped at the manufacturer's single-line rating
• NewEvery model in the equipment shop now has a Preview button that opens an auto-rotating 3D model
• ImprovedAdded a Shop link to the top navigation
• NewMember avatars now carry a plan badge across the plaza, rankings and community; profiles get a badge wall where the first 300 early users can claim an exclusive Early Bird badge
• ImprovedRedesigned equipment shop: every crane now shows a side view drawn to its real dimensions, and the livery card previews factory vs custom colors
• ImprovedMeasure, angle, section and person view are now free; part and assembly drawings, model health checks, clash detection, model issues, auto roam, component and full-model AR, and spectate mode now come with Basic
• NewCustom crane livery: change primary, secondary and stripe colors and add your company logo; one purchase covers all your cranes
• NewNew equipment shop: common small cranes are free, other crane and tower crane models can be bought once and used in all your models
• NewPlace several mobile, crawler and tower cranes in one model; tower cranes too close together are flagged in red
• ImprovedCrane panel: searchable model picker (type a brand or model), and layout readings grouped into position and pose
• FixedFixed long dropdowns running off-screen so later options (e.g. crane models after SANY) couldn't be picked
• New26 tower cranes added (flat-top, hammerhead and luffing) with selectable jib length and tower height, using the makers' load charts
• NewTower cranes can lift a searched component in one click on the Lift tab, rated against the maker's load chart with an overload warning
• NewSix more cranes: two 16 t truck cranes, a Tadano all-terrain crane and three 100 t class crawler cranes (including Kobelco), with the makers' load charts
• FixedFixed some assemblies failing to draw on A4 portrait custom frames; the print hint now names the sheet's actual paper size.
• NewFour crawler cranes added (Liebherr, XCMG, SANY, Zoomlion) with sectional lattice booms and the makers' load charts
• NewFor crawler cranes the Lift tab shows the ground pressure under each crawler, with and without mats, as a reminder to check the ground
• ImprovedWith a larger paper size in a custom frame, the assembly drawing scale now grows with it (e.g. 1:20 on A2, 1:15 on A1), so the views no longer look tiny.
• NewCustom frames can now set the bill of materials row and text height, and place it right above the title block; a table that does not fit is reported clearly.
• NewCustom frames can now set the title block size, including full width.
• NewDXF frames now draw hatches, solid fills, ellipses, splines and dimensions; images in the frame (such as a company logo) can be added as PNG or JPG.
• NewCranes can now use the counterweight actually fitted; rating, tipping and reach follow it
• NewThe Lift tab shows each outrigger's force and ground pressure (a conservative estimate, with an optional mat size) as a reminder to check ground and mats
• ImprovedX-ray on the component 3D page now labels only internal parts such as diaphragms, so outer-plate marks no longer pile up; components without internal parts no longer show the toggle
• NewCustom assembly drawing frames now support A0–A4 paper in landscape or portrait, a configurable bill of materials (columns and position), and sharing frames with your team
• FixedCrane hooks no longer sink into the boom at steep boom angles; the hoist rope now drops from the front of the head sheave, and radius and hook height are measured from there
• NewCrane models grow from 10 to 21, adding a fourth maker and the 60 t, 75-80 t and 120-180 t classes; every load chart is transcribed cell by cell from the maker's data
• ImprovedThe scanned component 3D page has a new X-ray toggle that reveals the part marks of internal parts such as box-column diaphragms
• NewAssembly drawings can now use your own DXF frame: put placeholders like {Project} in CAD and they get filled in, with views and the bill of materials kept clear of your title block; a sample frame is available to download
• FixedCrane models no longer clip through themselves: outrigger boxes clear the wheels, the counterweight no longer cuts into the cab when slewed over the front, and the boom root no longer sinks into the counterweight when luffing
• NewAssembly drawings now support custom frames: arrange title block rows, cells, fields and labels, add custom fields and fixed text, and reuse them across all models
• ImprovedIn the 3D view opened from an assembly drawing's QR code, part marks are now printed on the part surfaces, matching the main viewer
• NewAuto-roam routes can be copied as a share link that plays the route automatically when opened
• ImprovedAssembly drawing samples on the English homepage now show English sheets
• ImprovedWhen picking a component to lift, the crane now warns clearly if its outriggers are not fully extended and lets you extend them in one click
• ImprovedThe homepage product animation now shows English text on English pages
• ImprovedAssembly drawings now print their bill of materials, title block and view labels in English when the interface is in English
• NewPick your crane: 10 common truck and all-terrain models from three makers, each modelled from the maker's dimensions and colours, with load charts and lift checks that follow the chosen model
• NewIn site management you can choose which crane to rent; smaller cranes cost less per day
• NewThe crane can now lift components: search a component number in the crane panel's Lift tab and the crane aims and picks it up, beams horizontal and columns upright; rating and utilization update live from the component's weight, with how far it can reach in each direction and which boom angles work
• NewOutrigger extension now changes how much the crane can lift, and past the tipping limit the crane falls over; right it from the crane panel
• ImprovedSplit review: bent H-beams with skew-cut ends now get a formed-section review; the web blank covers both faces and the bevel size is shown
• FixedFixed the homepage drawing viewer briefly collapsing while the next drawing loads
• ImprovedHomepage sample drawings now follow the light/dark theme and page through in batches of 12
• FixedSplit review: bolt holes with a slightly tilted axis now merge into the split plates instead of being dropped
• ImprovedHomepage sample drawings are now a thumbnail grid; click any one to view it full size
• FixedOn phones, the command-mode bar no longer squeezes its text into a vertical column, and the crane's sign no longer overflows the screen up close; the section toolbar and walk-mode hint also fit small screens
• ImprovedLong welded beams with spliced flanges (two plates in the source model) can now be split; each segment gets its own drawing, and exported files carry a -1/-2 suffix

• ImprovedPlate split review now handles more members: long welded beams, box members with weld access holes on a plate edge, and models with tiny coordinate errors
• ImprovedParametric hot-rolled H sections (HN/HW/HM and similar) can now be force-split into three plates
• ImprovedIn person view and the crane cab, the key hint at the top is now shorter and fainter instead of repeating the key strip / console; press H to hide those and it comes back in full
• ImprovedThe homepage now shows all 62 assembly drawings from a real project, browsable one at a time, each with a QR code that opens the component in 3D
• NewWhen following someone, their walking keys (move, run, jump, crouch) light up on a key strip on your screen too
• FixedLong part numbers, profiles and materials in the parts list are now compressed to fit their cells instead of running over the table lines
• FixedRepeated identical parts (such as embed studs) are now labelled once per view instead of filling the drawing, and small embeds that do not fit at 1:5 use 1:6 instead of shrinking to 1:10
• NewDrive the crane on phones: two thumb sticks work the boom and hook, hold the arrows to drive, one tap for outriggers or getting out
• NewWhen following someone who drives the crane, a cab console shows their joysticks moving with their keys; the front wheels now visibly steer for watchers too
• NewPerson view now shows the keys you are pressing in the lower right, plus how many jumps are left and what F does right now; press H to hide
• NewDriving the crane shows a cab console: two joysticks that move with your keys, a boom angle gauge, boom/radius/hook readouts, collision lamps, outriggers and gear
• ImprovedPlate split review now splits a recognised H or box member in one click, no shape picking or confirmation; hot-rolled sections stay whole unless you choose Force split
• ImprovedWelded beams and box members whose source model has a sub-millimetre warp at an end cut can now be split into plates
• FixedAssembly drawings no longer stack dimension numbers on top of each other or on dimension lines, part-mark leaders no longer run through other marks, and the unit weight in the parts list is no longer covered by the equals sign
• NewPeople can now be deleted: use the trash button in the Person panel or right-click a person, at least one is kept
• NewThe scanned component 3D view now labels each part with its part mark, with a toggle in the corner
• ImprovedThe scanned component 3D page is now a standalone, faster-loading view with a View in AR button at the bottom
• FixedFixed round holes in lifting lugs and plates showing as solid black discs in some models
• ImprovedThe QR codes on the homepage sample drawings now use short links that open the component in 3D
• FixedClicking the crane now selects it instead of the grid line or member behind it
• ImprovedBatch-exported component QR codes now use short links that are easier to scan, and open the component in 3D in the phone browser
• ImprovedScanning the QR code on an assembly drawing now opens the component in 3D in the phone browser instead of AR
• FixedFixed component search never loading when opened right after a model loads on phones
• FixedFixed the joystick and Jump button not responding in person view on some Huawei phones
• ImprovedThe sample assembly drawing on the homepage can now be paged through
• FixedFixed "Align to grid" moving some already-aligned models off their grid
• FixedFixed some models appearing on their side when opened offline
• ImprovedModels now open facing the front, with just a little of the left side and top visible, instead of from the back
• ImprovedComponent filter in offline mode can now filter by level
• ImprovedWhen a model has many mark prefixes, the component filter lets you search them (including by meaning)
• FixedThe navigation cube can be dragged again to orbit the view
• FixedFixed some models opening stood on end (gutters and similar parts mislabeled as columns no longer decide which way is up)
• ImprovedOn small models the crane now starts beside the model instead of blocking the view
• FixedAssembly drawings now only use standard drawing scales; non-standard ones such as 1:45 and 1:75 are gone
• ImprovedWeChat sign-in now works from phone browsers: save the QR code and scan it from your album in WeChat
• ImprovedAssembly drawings get a cleaner, formal title block: aligned rows, long names compressed to fit, a new "Design firm" field, and a QR code that opens the assembly in 3D
• NewH-section members can now export a review NC1 file with web and flange holes and end contours on their own faces; batch export includes them when NC1 is selected
• FixedFixed odd tumbling rotation after jumping to a view (e.g. top) with the navigation cube

• ImprovedThe homepage product intro is now a live in-page animation that follows the light/dark theme, cutting the download from about 9.5 MB to about 0.1 MB (music loads only when you press play)
• FixedThe minimap now has the same orientation as the top view instead of being rotated 180°
• FixedFixed the 3D coordinate tool showing Y with the wrong sign
• ImprovedThe 3D coordinate tool now snaps to corners and edges with a magnifier on hover, just like measuring
• FixedAssembly drawings: beams with equal section height and width (e.g. HW200×200) no longer draw the plan as the front view, and section A-A is upright
• ImprovedHomepage redesign: the headline now says it plainly — upload an IFC, get assembly and part drawings — with a new engineering-drawing look and a single capability table
• ImprovedSteel models with many bolt holes now convert about twice as fast
• FixedFixed members sharing the same section sometimes showing another member's hole pattern
• ImprovedSteel-reinforced concrete models with many rebar holes now convert over 10x faster
• FixedFixed hard-to-read text on the homepage in light mode and reorganised the homepage sections
• ImprovedSmoother rotation for rebar-heavy models: rebar no longer draws black outlines
• ImprovedThe homepage now leads with assembly and part drawings generated straight from IFC, with a real sample sheet and a how-to guide
• ImprovedThe workspace stats strip now shows how many of your models are published to Explore and to the Community
• NewNew Billing center: see all your payments in one place and request VAT invoices (general or special) online; the PDF is emailed to you and downloadable from the page
• NewEarly adopters with a lifetime Basic plan can now upgrade online; when the upgrade ends you return to your lifetime Basic plan
• FixedLifetime plan holders can no longer accidentally buy the same or a lower plan; upgrading a lifetime plan is now handled by our team
• FixedThe figure that appears when opening a model no longer spawns inside the building
• FixedOn phones, floating panels on shared model pages are no longer hidden under the top bar, and the theme button no longer gets pushed off screen
• ImprovedProject issues, issue details, model details and the admin page now share the site header with notifications, theme and language switches
• ImprovedRedesigned dashboard: models sit side by side with upload and membership at common window widths, and top notices are now compact
• ImprovedRemoved the per-row visibility dropdown in My Models; set publication scope from Share instead
• ImprovedBeam assembly drawings now dimension part positions once in the top view as a single chain with the overall length outermost; the main view shows hole spacing and flange offsets when top and bottom flanges differ
• ImprovedAssembly drawings now derive every non-main view as a section with a direction marker on the main view; columns get one depth-limited section per connection level and show the base elevation; fixed flat-lying members whose main view was drawn from below
• NewRolled plates such as curved-beam webs can now export their flat blank as single-plate DXF and NC1, with the rolling radius and angle noted in the DXF
• ImprovedThe share dialog now keeps its action buttons pinned at the bottom and hints when there is more to scroll; expiry and password fold into one expandable row
• FixedBolt holes now appear on the development drawings of curved-beam webs
• NewRolled plates such as curved-beam webs now get a flat development drawing along the mid-thickness line, matching the detailing software's length, with end cuts and weld access holes laid out
• FixedIn person view, the health and stamina bars no longer cover the open chat panel

• ImprovedAssembly drawings now show hidden edges as dashed lines, so webs and stiffeners under the flange appear in the top view alongside their dimensions
• ImprovedRedesigned the model share dialog: link, QR code and expiry in one panel, publication scope as three cards, visitor permissions grouped together
• NewCurved-beam flange plates now get part drawings with their inner and outer arc radii; arcs next to cuts on plates stay true arcs instead of turning into polylines
• ImprovedAssembly drawings now have their own entry points: the "Assembly drawing" button in the selection panel and "Batch export assembly drawings" on the model page, no longer nested inside part drawings
• NewNew batch assembly drawing export: one DXF per assembly mark in a single ZIP, with a list explaining any that could not be drawn (Ultra)
• FixedFixed assembly drawings refusing assemblies with irregular plates as "part geometry incomplete"
• ImprovedAssembly drawing dimensions closer to hand-drafted sheets: column hole groups measured from the base, part positions grouped per mark, sections annotate only the cut plates
• ImprovedAssembly drawings now handle plates cut by another member's solid instead of refusing the sheet
• NewNew assembly drawings: from the part drawing, generate an A3 shop drawing for the whole assembly (views, section, dimensions, part marks, hole callouts, bill of materials, title block) and download it as DXF or print to PDF (Ultra)
• ImprovedLarge models now open in full on phones right away, no more "lite / full" prompt; bolts and other small parts are all shown
• FixedWhen several people upload the same file, each now has their own share link and no longer sees someone else's expired share
• FixedFixed occasional site-wide freezes of a few seconds where pages and actions stopped responding
• ImprovedConversion notifications now open a details page with queue and conversion times before you view the model
• ImprovedThe Notifications page opens faster for accounts linked to WeChat
• FixedRenaming a model now updates the name shown on its share link, and the project name can be edited in Edit Model Info
• FixedFixed a bug where renaming a model made the page refresh in a loop and briefly stalled the site
• ImprovedThe orbit center dot is now occluded by members (shown faintly when hidden), so you can tell whether you're orbiting around something in front or behind
• ImprovedIf you sign in with WeChat but haven't followed our official account, you'll now see a prompt explaining that WeChat alerts need a follow, with a QR code on the phone sign-in page and in the notification center

• NewNew notification center: the bell in the header shows conversion results, issue assignments and replies
• NewLink WeChat and follow our official account to receive notifications in WeChat
• ImprovedPart DXF exports now have a switch to leave the part mark text out of the file
• ImprovedOn phones and tablets, dragging from a component now rotates around it; after selecting a component, dragging from empty space rotates around the selection
• ImprovedA small dot now marks the rotation center while you orbit the view, fading out when you let go
• FixedPart weights stored without a unit now show as kg rounded to 3 decimals in the component panel, instead of a long raw number
• NewComponent AR preview and the part drawing's 3D view now tag every part with its part mark (tap a tag to select it), and the part drawing shows the part mark above the view
• FixedIn offline mode, selecting a component now shows its weight, profile, material and length summed from its parts instead of leaving them blank
• ImprovedThe crane's drive sign is now a steering-wheel badge in the scene; the text appears as you get closer and it no longer floats over the building
• NewThe crane now shows a sign above its cab telling you it can be driven and how to get in, or who is driving it
• NewComponent filter can now filter by level: pick the same level twice to show just that floor's beams and slabs, or two levels to include everything between them
• ImprovedThe home page now introduces the playful side: walk, jump and climb as a worker, drive the crane, and press G to command a crew, with a controls cheat sheet
• NewTeams: choose whether to share a model with your team when uploading, and whether to share a project when creating it; toggle it later from the model menu or project page. Models in a shared project can be opened by team members from within the project
• NewAdded a referral program banner to the dashboard with one-click copy of your referral link, plus a Referral Program entry in the user menu
• ImprovedReferral messages now come in 20 variants you can filter by audience: design, fabrication, site or project management
• NewReferral program now suggests a random referral message you can copy together with your link in one click
• FixedFixed the component number in the info panel being squeezed into a vertical column on small phones
• NewOn-site AR inspection records from the Steel Copilot app now appear in the component info panel, with problem parts linking to their issues and photos
• ImprovedPart split review now recognizes box and H members modeled as profile extrusions automatically, and box lap direction defaults to short side covering long side
• ImprovedBox columns modeled with a rectangular hollow section can now be split into four plates for review once confirmed as welded
• NewYou can now link an Apple ID in Settings, so accounts created with WeChat can also use Sign in with Apple

Sign in with WeChat

• NewSave share links to your account and reopen them from "Saved links" in the user menu; in WeChat, saving signs you in with WeChat in one tap
• NewNew "Sign in with Apple" on the sign-in page; if your Apple email matches an existing account, you're signed into that account
• NewChoose which toolbar buttons to show via "Customize Toolbar" next to "Hide Toolbar"; saved on this device and shared by online and offline viewers
• ImprovedThe offline viewer's toolbar now matches the online viewer's layout and groups
• FixedFixed a gap above the top bar when browsing inside WeChat
• ImprovedThe offline viewer now reopens a model at your last view and component filter
• ImprovedThe WeChat sign-in button now shows the green WeChat logo
• NewSign in with WeChat: scan a QR code on desktop, or sign in with one tap inside WeChat; you can also link WeChat in Settings
• NewAccounts created with WeChat can add an email, or be merged into your existing email account
• NewOpening a share link inside WeChat signs you in automatically if your WeChat is linked
• ImprovedComponent filter now has Select all / Deselect all for categories and mark prefixes — select all, then untick what you want to exclude (offline viewer too)
• NewThe offline viewer can now hide its toolbar to show more of the model
• FixedFixed the header vanishing and the page appearing frozen when opening the avatar menu after scrolling down
• ImprovedRight-click your own figure to jump straight into its view
• NewNew "Go live" in watch mode: no invites needed — people viewing the model get a prompt to join, and anyone opening the share link can watch too
• NewVisitors on a shared link can now invite others to watch, or ask to watch someone online
• FixedFixed email-code sign-in failing with "incorrect code" for emails without an account: it now creates the account and prompts you to set a nickname
• FixedWhen resending a sign-in code asks for a captcha, the code is sent automatically once you solve it; rate-limit errors now tell you to wait
• ImprovedTapered and haunched welded H members can now be split into web and flanges, with flat patterns for the flanges
• ImprovedNew private share links now accept visitor issue reports by default; links published to the community or plaza stay off by default
• ImprovedIn shared sessions your own figure now shows a "You · name" tag so you can tell yourself apart
• NewShare links can now accept issue reports from visitors: they can mark components and attach a snapshot, without seeing any existing issues
• FixedFixed the chat panel showing 0 people online while others were in the model

• ImprovedOffline mode opens large models faster: element marks are prepared after the model appears instead of delaying it
• ImprovedComponent search and filtering are about twice as fast on large models
• FixedFixed removing the jetpack from the person panel not sticking after leaving person view, so Space would take off again
• ImprovedNew logo: an I-beam section mark, now sharper in the header, browser tab and share cards
• ImprovedThe mid-air flip now follows your motion: front flip when running, backflip when jumping in place
• ImprovedPeople in the same model now see your mid-air backflip
• NewAfter a batch drawing export, profile members can now be sent to HNest too: 1D cutting by section code and stock length, marked unverified on arrival
• NewIn person view, press Space again mid-air to backflip and jump higher, enough to reach the next floor
• ImprovedPerson view on phones now uses a joystick at the bottom right: walk in any direction, push lightly to walk slowly, push all the way to run
• ImprovedOffline mode adds angle measurement: tap three points, the second one is the vertex
• ImprovedOffline mode shows element marks right in 3D, as surface nameplates or floating labels, for assemblies or parts
• ImprovedOffline section adds Place on surface: tap a face to cut along it, then drag the slider to set the depth
• FixedFix member labels landing on small connection plates (looking missing) and the matching profile classification

• ImprovedOffline mode adds Filter Components: show only elements matching a category, grid-axis range or mark, with the total weight computed on the device
• ImprovedOffline mode now selects the whole assembly by default, with a switch to pick single parts, matching the online viewer
• ImprovedOffline mode adds a perspective/orthographic toggle and X-ray
• NewThe crane can now hit people: driving it or swinging the boom or hook into someone pushes them aside, and a fast hit hurts or knocks them down
• ImprovedFiltering by grid axes now works on models with several grids: pick the grid first, then the axes
• ImprovedOffline mode's component panel and toolbar now match the online viewer, including weight, profile, material and length
• ImprovedOffline mode now follows the language you chose on the site, including when installed as an app
• NewComponent filter can now narrow by grid axes: pick a from/to axis in each direction, or the same axis twice for what sits on it
• FixedPeople whose page isn't responding (locked screen, background tab) now show a yellow dot on their name tag and in the online list, matching "Invite to watch"; everyone you can see in the scene now appears in the online list
• ImprovedIn "Invite to watch", people whose page isn't responding (locked screen, background tab) are now marked "Not responding" instead of measuring forever; open pages now prompt you to reload after a site update
• NewNew 48-second product tour video on the homepage covering upload, member checks, model health checks, quantities, progress tracking and sharing
• FixedGoing back from a model now returns to the same dashboard page instead of page 1
• ImprovedShared models now tell active viewers apart from idle ones: visitors whose tab is in the background or untouched for 3 minutes are counted separately

Guess the weight now has a leaderboard

• FixedFixed the paint view sometimes staying on "re-evaluating" forever without showing results
• ImprovedOn phones the viewer toolbar now stands as a column on the right edge, freeing the bottom for panels and playback bars
• ImprovedMark prefix hints now recognise wall (Q) and roof (W) prefixes, e.g. QLT as a wall sag rod or wall purlin
• ImprovedMark prefixes in the component filter now show a likely meaning in the Chinese interface, e.g. XG (tie bar)
• ImprovedThe person panel gets a Locate button that flies the camera to the person; Run the site and Guess the weight now live under a separate Games button in the toolbar
• ImprovedThe viewer tour now ends with one-click entry to person view, Run the site and Guess the weight; existing users see this step once
• ImprovedJetpack fuel and stamina now scale with your plan: higher plans fly and run longer, and Ultra can hover for 5 minutes on a full tank
• ImprovedIn shared sessions, dragging or scrolling while pointing at someone else's figure now orbits and zooms around it
• NewCommand mode now has an Enter Fullscreen button: in fullscreen the mouse stays on the page and pushing it against the screen edge scrolls the view right away, RTS-style
• ImprovedDragging or scrolling while pointing at a person or crane now orbits and zooms around it instead of the members behind
• ImprovedRefreshed getting-started tour: a progress bar, an outline around the highlighted area, and better contrast in dark mode
• NewThe jetpack now runs on fuel: flying drains it, you land automatically when it runs low, and it recharges on the ground
• ImprovedFirst-person and person view now work like a game: the cursor hides and moving the mouse or trackpad turns the view directly; press Esc to free the mouse
• NewPress Z in person view to crouch and squeeze under low beams you'd otherwise bump your head on; others in the model see you crouching too
• FixedModel health check no longer flags concrete beams and columns as over crane capacity or stock length
• FixedIn incognito mode you no longer appear in other people's "Invite to watch" list, and they can't request to see your view
• FixedA person placed on stairs or a beam can now fly down with the jetpack all the way to ground level instead of stopping at the starting height
• FixedIn person view, the "F Climb" prompt no longer sticks on screen while flying with the jetpack
• NewThe chat now has an "Online" list and a "Leaderboard" tab: see who is viewing this model right now (people in incognito are hidden), and the weight-guess and site-sim boards update live when someone sets a new score
• NewA notice pops up above the chat button when someone joins or leaves the model
• ImprovedThe watcher count next to "Shared" now updates live as people open or close the link
• NewIn My Models, the "Shared" tag now shows how many people are watching through the link right now
• NewThe model page now shows how many people are watching through the share link right now
• ImprovedOther people's names in a model now carry a small dot — green when online, red when offline
• ImprovedWhen someone leaves a model, their figure stays where they were, greyed out with "offline N min ago" overhead, and comes back to life when they return. People in invisible mode leave nothing behind
• ImprovedIn incognito mode your own person now shows see-through, so you can tell others can't see you
• ImprovedThe "Invite to watch" dialog now shows the delay between you and each online person
• FixedIn command mode, people without a jetpack no longer shout flying lines like "Lifting off!" when selected or ordered to move
• NewEach model gets its own leaderboard showing everyone's best game, visible only to people who can open the model
• FixedNo more fall deaths with the jetpack on: descending with C is safe, and stepping off a beam leaves you hovering
• FixedFlying the jetpack along a wall or beam no longer kills you instantly
• NewDaily weather: force 6+ wind or storms stop the cranes, rain stops work at height, with a forecast the evening before
• NewMornings can bring a safety inspection (fined if you're short of safety officers) or a late steel delivery
• NewFinishing a model puts you on its leaderboard, fastest first, visible only to people who can open the model
• NewNew timelapse replay on the Erect tab watches the whole structure go up piece by piece, and can be saved as a video
• ImprovedThe viewer toolbar now sits at the bottom center, regrouped into view, grid, labels, measuring tools, check, quantities and present; toggles and choices in its menus show their state at a glance, and on phones every entry fits in one row
• NewNew Fleet tab: rent a 90 t mobile crane, scissor lifts and boom lifts — place, relocate or return them; rent is settled daily
• NewNew Erect tab: lift the model's members one by one in erection order and get paid by the tonne, with the panel always telling you what's holding things up
• NewLifts follow the real LTM 1090-4.2 load chart — the farther and higher, the lighter it lifts, and you're told when to move closer
• NewThe offline viewer can search elements by mark or name and jump to them; elements sharing a mark are grouped into one result
• NewThe offline viewer now supports hide, isolate, a height section and point-to-point measuring
• NewThe online viewer now shows whether this device already has an offline copy and whether it needs updating
• NewThe offline models page checks saved models for updates when online, with a one-tap check button
• ImprovedThe crane can no longer be dragged or edited from its panel — drive it in person view or send it somewhere in command mode; the panel now just shows its position and pose
• ImprovedPeople can only be moved, launched or landed from command mode; they can't be dragged while browsing
• ImprovedCommand mode now requires signing in
• ImprovedOffline models no longer show dead online links when you are offline, and skip re-downloading a copy that is already up to date
• ImprovedIn the offline viewer, the back button or Esc now closes the model instead of leaving the app, and the page shows remaining device storage
• ImprovedMembers without download permission no longer see the Save offline button
• NewNew "Run the site" mode: put up a site office, dorms, a canteen, a power room and toilets next to your model, and hire laborers, erectors, welders, riggers, electricians and safety officers
• NewWorkers keep a daily routine — three meals, a bed at night, wages every evening; run short on beds, seats, power or toilets and morale drops until they quit
• NewRTS-style controls: click or shift-drag to select workers, right-click the ground to send them there
• ImprovedWith the camera locked in command mode, resting the mouse at the edge of the browser window scrolls the view, RTS-style
• ImprovedThe crane now stops when it drives into the building, and the boom or hook turns red when it touches the model
• NewCommand mode has a new "Lock camera" switch: an RTS-style fixed overhead view with scroll to zoom, left-drag to box-select, and right-drag or arrow keys to pan
• FixedIn command mode, health bars of figures standing close together no longer pile up, and speech bubbles no longer cover them
• FixedWhen two people place their first figure in the same model, the figures no longer land on the same spot
• NewA strategy-game style minimap in the top-right corner: see the whole model from above with your view, your figure, other people and the crane marked on it — click or drag to move the camera there
• ImprovedDriving the crane feels like a real truck: the arrow keys steer the front wheels and the body follows their arc instead of spinning in place; reversing swings the nose the other way
• NewPress G for command mode — click or Shift-drag to select figures, click the ground to send them there (jetpack wearers can fly onto members), or select the crane and click to drive it over
• NewSelected units get a selection ring and a segmented health bar, and they acknowledge your orders
• NewFlying up into a beam with the jetpack now stops you below it instead of pushing your head inside
• FixedFixed figures looking faceless from the front — hair now only covers the top and back of the head
• NewDress up your own figure on the profile page — gender, hair, helmet, clothes, skin tone, face shape and glasses, with your name printed on the back
• NewSee other people's figures walking around the same model with their names overhead; guests wear white helmets; turn on invisible mode in preferences
• NewThe crane is shared — only one person can drive it at a time, and you'll see who is driving
• NewPress Enter to chat while viewing a model, with speech bubbles overhead; history is kept and the model owner can clear it
• NewSay "the chinese can fly" in chat to get a jetpack and take off; figures now have stamina and health

• ImprovedThe person view now bumps into columns and walls, and the camera no longer passes through them; while climbing, A/D moves around the column
• NewThe person view can now climb columns: walk up to one and press F, pull up at the top, then walk along the beams — step off and you fall
• NewPerson view now follows the worker from behind like a game: arms and legs swing as you walk, Space jumps, and next to the crane you can press F to get in and operate it — slew, luff, telescope, lower the hook, even drive it with outriggers retracted
• FixedMember info now shows materials that are only recorded in the model's material assignments (new or reconverted models); concrete members are no longer weighed with steel density when estimated from volume.
• Fixed"Guess the weight" no longer picks concrete or other non-steel members.
• NewNew "Guess the weight" mini game under Analyze: a member is highlighted, you guess its weight from the profile and size, then see the real weight — five rounds per game.
• ImprovedRedesigned batch part-drawing export: a live summary shows how many parts will be processed and why export can't start yet; Esc or clicking outside no longer discards a running export; parts that weren't exported are grouped by reason and can be copied; the last package is kept in the browser for re-download after closing; settings are remembered per model.
• FixedWhen sending plates to HNest, parts without a mark in the IFC now use the mark from the parts list instead of showing as unnumbered.
• ImprovedBatch part-drawing export now shows how many parts it will process, can limit the run to the selected split sections, and folds plain plate sections to the end of the list.
• NewAfter a batch part drawing export, plate parts can be sent to HNest nesting in one click with marks, quantities, thickness and material; drawings remain review-only and arrive marked as unverified.
• ImprovedBatch part drawing export now writes one drawing per part mark with the instance count as quantity, making large models much faster; per-instance export remains available.
• FixedRight-drag panning (including two-finger press-and-drag on a Mac trackpad) now keeps the point you grabbed under the cursor, so dragging distant parts no longer barely moves the view
• FixedMulti-storey steel frames and models with columns standing on upper floors no longer open upside down

• ImprovedCuts and pipe intersections on some members are more accurate (models need to be reconverted)
• FixedSpectate mode now follows the host much more promptly: fixed frames arriving late in bursts. The status bar also shows the delay between the host and each viewer
• ImprovedPart drawings now recognize more parts exported by detailing software: straight round bars and tie rods, parts with skew cuts and notches, and openings attached to a parent assembly
• FixedPart drawings can now draw the slotted holes in models from some detailing software, which previously showed none; models with very many bolts no longer lose holes.
• ImprovedPart drawings no longer render an incomplete outline when a cut or opening cannot be read; the dialog now states the reason instead
• FixedPart drawings and plate-split review now recognize notches cut by other parts, so far fewer welded H members are rejected
• FixedPart drawings: some parts with bolt-hole cuts, previously refused as "geometry could not be fully read", now draw normally
• FixedFixed the whole page zooming in on iPhone when tapping a search box or other input, pushing buttons off screen
• ImprovedGrid bubbles and level tags are back to their previous look
• FixedSurface nameplates on channel purlins and other open sections are no longer hidden inside the channel, so the mark is readable from both sides
• ImprovedTwo-finger pinch on phones now zooms toward the part between your fingers, so you can get right up to parts at the edge of the view
• FixedFixed the 3D viewer failing to load in browsers without WebGPU (older iPhone Safari, in-app browsers such as WeChat)
• ImprovedElement marks, grid bubbles and level tags have a new look — blue grid bubbles, amber level tags — and now follow the dark/light theme
• FixedCurved H-beam flange development now keeps end copes and pipe-intersection notches instead of drawing the flange as a plain rectangle.
• ImprovedMouse-wheel zoom on the merged project view now moves toward the part under the cursor; first-person wheel steps scale with model size
• ImprovedMark labels now offer Adaptive, Mark + profile, Mark + length and Mark only, defaulting to Adaptive; also available in Settings
• ImprovedViewers in spectate mode now watch without being able to interact, so accidental clicks, scrolls or shortcuts no longer pull them away from the host's view; click "Stop following" to take control
• ImprovedThe IFC upload export check now includes welds and tells you when the model was exported without them.
• ImprovedElement marks can now also show the member length; when space is tight the length and then the profile are dropped, and the mark always stays
• ImprovedThe element label menu can now turn off the section profile and show marks only
• FixedFixed component mark nameplates disappearing for a while after filtering or hiding components
• ImprovedAssembly and part marks in 3D now also show the section profile when the member is long enough; short pieces keep showing the mark only
• FixedIn spectate mode, the host's component filter now carries over to viewers, both in the 3D view and in the filter panel; viewers who join mid-session see the host's current view right away
• ImprovedTrackpad scrolling and pinch zoom now follow how far your fingers move instead of speeding up unpredictably; wheel zoom after sectioning is paced by the visible surfaces
• ImprovedWhen a model is automatically straightened to its grid on open, a notice now says so and offers "Restore original"; once restored it is not turned again
• NewComponent filter has a new Welds category that shows only the welds in the model, including welds attached to assemblies
• FixedContinuous box-plate development now keeps arc-shaped end notches from pipe intersections instead of drawing the plate as a plain rectangle.
• FixedModels exported under a rotated work plane (with columns exported as beams) now stand upright on their grid automatically; level names like "-300" and "±0" no longer split off into a separate grid
• FixedPart drawings: stepped bolt holes (nut and washer each cutting part of the thickness) are now drawn as holes instead of flagged as undrawn cuts
• FixedFixed flange plates of curved beams showing up standing on edge in 3D (models need to be reconverted)
• NewContinuous plate development now detects rolling vs folding and picks process parameters from plate thickness automatically, so the flat pattern appears without entering K factor or bend radius.
• NewOperate the crane directly in 3D: drag the turntable to slew, the boom to luff, the boom tip to telescope, the hook to raise or lower it and the outriggers to extend them; with the crane panel open, drag the orange ground ring to turn the whole crane
• NewThe crane hook can now be lowered
• ImprovedThe crane now parks farther from the building by default
• FixedFixed some steel buildings opening stood on end (bolt placeholders were counted as part of the columns)
• FixedFixed beams and other members disappearing when zooming in on some newly uploaded models
• FixedLarge assemblies with many parts now open in the part drawing's 3D preview and in component AR (without outlines)
• FixedPart drawings: some cut plates and members that were refused as "geometry could not be fully read" now draw normally
• FixedFixed grid lines showing up standing vertically with repeated labels on some models
• FixedPart drawings now open for parts in very large assemblies with hundreds of parts
• FixedPart drawings: cuts on members whose section is rotated or offset in the model were drawn outside the section; they now land in the right place
• FixedPart drawings: models exported in feet showed dimensions about 3.28× too large; feet are now converted correctly
• FixedOn phones the viewer and share pages no longer get accidentally pinch/double-tap zoomed, so toolbar buttons stay on screen
• ImprovedPart drawings now read more bolt spec styles (nominal-only, localized property names, imperial sizes), so models that previously showed no bolt holes now do

• FixedPin and bolt holes through stacked plates now cut through as well (after reconversion).
• FixedA single hole running through several touching plates (such as the crossed angles of an anchor-bolt positioning frame) now cuts through all of them (after reconversion).
• ImprovedBolt-heavy models are much smoother zoomed out, and every bolt is still there as you zoom in
• ImprovedSelecting an element in large models no longer stutters
• ImprovedBolt-heavy models stay smoother when zoomed into a joint
• ImprovedSection planes now snap to the part face you click (facing you), then drag the arrow to set depth; new one-click six-sided section box
• ImprovedWelded H members exported as parametric sections can now be split into plates for review, and unsupported cases explain why
• FixedRolled-section part drawings now include holes for bolts that lean up to 6° (such as on sloped roof members), drawn as square holes with a note on the lean
• ImprovedPart drawings now pick up cuts and bolt holes modelled as openings; skew end cuts and flange notches on I, C and L sections are drawn far more completely
• ImprovedNewly uploaded models download much smaller (over half smaller for bolt-heavy models), so they open faster
• ImprovedPart drawings: notches, cut corners and cut-outs on plates now follow the model; end bevels also show in I-beam flange views; cuts that cannot be drawn are called out
• FixedRolled-section part drawings now show bolt holes that were previously missed when the bolts were modelled at a tiny angle
• FixedRolled-section part drawings now show end cuts and notches, with the overall length measured on the cut shape; a notice appears when a cut cannot be shown
• FixedThe "restored your last view" notice no longer covers the part drawing when you open it
• ImprovedThe 3D view in part drawings now zooms to small parts so you can see where they sit on the assembly; switch back to the whole assembly with one click
• NewPart drawings now infer bolt holes in I-beam and C-section flanges and in the horizontal leg of angles, shown in a separate flange view you can switch to; results still need checking against the source drawings.
• FixedBox member splits now default to the short side covering the long side, with lap options named by which plates run full height or full width; fixed a flange corner at coped ends of bent boxes being drawn on the web plate.
• ImprovedPart drawings now open full screen: the assembly in 3D on the left with the current part highlighted (click a part to switch), and parameters and review/export tools tucked into a Details drawer
• FixedFixed models exported from a rotated work plane still sitting about 1 m off their grid lines and levels after aligning to the grid (takes effect after reconversion)
• NewNew onboarding tour for first sign-in and first visit to a shared model, skippable at any step and replayable from Settings
• FixedFixed oversized/slotted holes also being cut through the neighbouring plates in AR and part drawings
• NewNew preferences to stop the person and crane from appearing when a model opens; their visibility and position are restored the next time you open the model
• FixedFix some models showing their axis grid standing upright beside the model, with "align to grid" unable to find a direction
• FixedFixed stray lines criss-crossing some parts, such as node plates, in certain models
• NewSpectate mode now works in reverse: pick someone online and "View their screen" — once they agree, you follow their view
• FixedWhen adding a passkey that this device (or its synced keychain) already holds, we now explain you can sign in with it directly instead of showing a cryptic error
• ImprovedBent plates now show a developed blank in the part drawing, with developed length, bend lines and holes on every leg; preview other K-factor and inside radius values

Member calculation, first version

• ImprovedModels with cut-through bolt holes are much smaller and convert faster (roughly half the size for hole-heavy models) after reconversion.
• ImprovedSpectate mode can now invite people viewing a project share link — they follow your view right on the project share page
• NewPart drawings now infer bolt holes in the webs of I-beams, C-sections and channels with cut ends or copes; holes touching the removed material are left out and listed in the hole-check details, and source drawing review is still required.
• FixedBolt holes on connection plates and in models with very many holes now cut through as well (after reconversion).
• NewA project can now have several share links, each with its own choice of showing weight, fabrication and installation progress — e.g. one with tonnage for the client and one without for the install crew
• ImprovedSpectate mode can now invite people viewing your share link, including visitors who aren't signed in — they follow your view right on the share page
• NewBox selection now shows the total weight of the selected members
• FixedFixed missing bolt holes on part drawings for some sections (purlins, channels, I-beam webs, angles).
• NewPart drawings can infer bolt holes in the webs of C-section purlins and channels; flange holes and end-cut members are not covered yet, and source drawing review is still required.
• NewNew spectate mode: invite teammates to follow your view — they see your camera, selections and open panels as you work
• NewOffline mode now shows the model's own grid lines and levels, with a toggle; re-save existing offline copies to get them
• ImprovedPerson and crane controls moved into a "Scene references" button in the right toolbar, and their panels now share one design docked beside the toolbar.
• ImprovedThe offline models page now explains how to install on computers (Chrome / Edge install, Mac Add to Dock) and matches the main site's look
• ImprovedThe "Restored your last view" notice now appears centered just below the header, so the Reset View button is easier to spot
• ImprovedThe Save offline button is now in the viewer toolbar, and Offline models is in the account menu; after saving you are prompted to add it to your home screen for one-tap offline access.
• ImprovedSaving a model for offline use now shows exact download progress and total size
• FixedOffline page error messages now follow the interface language
• NewNew member calculation (Pro and up): pick a beam, enter its section, span, support and loads, and get moment, shear and deflection with diagrams, a printable report, and saved history
• NewAdjust the camera from wide angle to telephoto in the View menu, reset to default, and retain it with remembered views
• FixedFix upside-down results when aligning some models to their grids; preserve the current orientation when direction evidence is insufficient.
• NewGLB/GLTF models now support embedded color textures, preserving surface detail and transparency
• FixedRight-click the crane to hide it directly.
• NewComponent filters now show total weight, with missing and estimated weight indicators.
• NewSave models to your device for offline viewing, navigation and element properties. Model download permission is required.
• ImprovedReturn home from the shared viewer header on desktop and mobile.
• ImprovedPerson and crane controls now share a scene reference group. Click an object to open its controls, select and show individual people, and switch between crane layout and load-chart tabs.
• NewPerson and crane controls now sit at the top left; reference positions are remembered per model, with new references starting at elevation zero.
• NewClick a level ruler value, then click people or the crane to set their base elevation. Click elsewhere to exit.
• NewPlace the crane beside a worker, adjust its base elevation, and drag the settings panel away from the model.
• ImprovedBent and folded box members can now be split into four plates from source geometry and developed into DXF or NC1 files using explicit forming parameters.
• NewAdd a positionable crane with boom, slew and outrigger controls plus reference load-chart lookup for a supported configuration.
• ImprovedRepeated grids now prefer elevation 0 by default. Show all elevations with a switch, or click a level ruler number to view that elevation's grids.

• FixedFixed an error when adding a new passkey to an account that already has one.
• FixedPart drawings now find holes more reliably and fix errors from missing properties, slot positions, arc-outline dimensions and full-circle display. Unverified results show reasons, and review DXF exports now include integrity checks.
• ImprovedPart drawing extraction is faster on real models
• FixedFixed striping around holes; verified round and slotted holes now cut through the model.
• ImprovedPart drawings, inferred holes and welded plate splitting now come with DXF and NC1 review exports.
• NewExport model parts as DXF and NC1 review packages from model details, with cancellation and a list of anything not exported.
• ImprovedH and box plate splitting can now reconstruct pipe intersection curves, with error bounds and source evidence in drawings and exports.
• ImprovedEligible folded and curved H beams now offer web and flange shape review with segment lengths, projected lengths and turn angles.
• ImprovedModel axis grids and labels now appear at their corresponding elevations, with separate same-name axes and spacing measurements on each level.
• FixedFixed incomplete bent-plate drawings that showed only one segment; complete projected outlines now retain end notches.
• FixedFixed isolation showing unrelated parts; assembly isolation now follows its actual parts.
• FixedSplit plate thickness now uses IFC declarations or section labels, shows its source, and checks geometry; conflicts block individual and batch exports.
• ImprovedTurn people by dragging their hand edges, with brighter clothing, fitted reflective strips, and back lettering that follows the interface language.
• FixedFix bolt holes disappearing after plate splitting by retaining near-perpendicular holes within numerical error limits while preserving oblique-hole and plate-boundary checks.
• FixedSearch complete part marks to find the exact parts and their owning assemblies, with matching part marks shown on assembly results.
• ImprovedHuman references are now solid figures with fixed headings: drag them, right-click to duplicate, or enter their viewpoint to walk and look around
• FixedPlate-split checks now use source geometry instead of profile prefixes, with explanations for unsupported shapes.
• NewSave and switch between named filter views; reopening a model in the same browser restores the last filters, with camera position remembered independently.
• NewPlace the human reference on a ruler elevation or a custom elevation plane
• NewFolded and curved H beams can use rolling, folding or mixed forming parameters to generate three flat plate patterns and export DXF or NC1 files.
• FixedDrawing titles distinguish part numbers and names from the parent assembly, with missing part numbers labelled explicitly
• FixedShow the current part number in drawing titles when opening standalone parts
• NewFilter batch drawing exports by mark prefix and profile; split files retain source marks with a customizable separator in Preferences.
• FixedFix numbered connection plates and stiffeners missing from part search
• NewAdded a 1.7m human scale reference with flexible placement, adjustable height, and hide/show controls
• ImprovedPart drawing generation, split review and drawing exports are now exclusive to Ultra, with visible upgrade prompts on lower plans.
• FixedRestore eligible outline arcs and include source material and split provenance in drawing review exports
• ImprovedSign up with email without a username; existing usernames stay fixed and nicknames can change every 30 days
• ImprovedChoose batch split profiles with part counts, including select-all and exclusion of unwanted sections.
• FixedRemembered views are separate for each account; shared models restore the viewer's own camera, with guest views kept separately.
• NewRemember each model's last view, restore it on return with a reset action, and optionally disable it in preferences
• FixedFix three-plate splitting for supported H-profile parts while preserving contours, inferred holes, and DXF/NC1 exports
• FixedKeep the parts list position when switching drawings and show it at the top of the sidebar for easier browsing.
• FixedImprove circular and slotted hole curves to remove visibly faceted edges when zooming in.
• FixedFix part-mode drawings showing the entire assembly parts list
• ImprovedWelded H and box split reviews now include validated inferred holes in previews and DXF/NC1 exports, with hole provenance.
• ImprovedOpen the steel handbook below model upload to look up sections and calculate steel weight.
• ImprovedStrengthened sign-in and email-code protection; password resets revoke previous sessions and SSO tokens
• FixedVerification codes, conversion notifications, expiry reminders and collaboration emails now follow your interface language.
• NewPart drawings now offer three-plate welded H and four-plate bevelled box reviews with selectable reference sections and DXF or NC1 review bundles; hole completeness and fabrication conditions still require verification.
• NewChoose DXF or NC1 review exports in part drawings, including four-file NC1 bundles for box sections; fabrication review remains required
• ImprovedAdded a prominent message icon to the context-menu issue action.
• ImprovedAlign dashboard, upload guidance and model sharing copy with SteelCopilot member checks, quantities and project coordination.
• NewThe site has a new address and old page links redirect automatically. Sign in again and add a new passkey on your first visit.
• ImprovedSteelCopilot now presents member review, model checks, and fabrication and erection teamwork on its refreshed homepage, with updated Chinese branding.