KoCAD

KoCAD 0.31.02026-10-29

• 新功能Evaluate → Strength → Plate in bending (pressure): a thin rectangular plate under uniform out-of-plane pressure. You choose EVERY edge condition (supported, clamped or free — nothing is preselected) and enter E, ν with their source. Shows the maximum deflection, w/t (above 0.3 in red: outside small-deflection theory), moments, the surface bending stress, mesh convergence and a colour map; PDF PT/JP/EN. Acceptance: within 1 % of the Navier series and the Timoshenko table.
• 新功能Structural analysis: "+ Temperature change ΔT" applies a uniform ΔT to members (all, horizontal or vertical). The α of each material is then requested, with its source; without it nothing runs. A member fixed at both ends shows σ = E·α·ΔT. Static analysis only; a gradient through the section (bowing) is not treated.
• 新功能Tools → AI second opinion (optional): runs only when you ask. Before sending you see exactly which project facts go (features, material, KoCAD's checks and studies — no geometry, files or images) and choose the AI: KOIA/Cascata only with KOREOS Core access; otherwise the AI of your own key/subscription (explicit consent). Every AI receives the same rules. The reply is shown as SUGGESTIONS, each point with a source; points without a source are discarded, nothing is executed and text that reads like an approval is flagged. Editing the document marks the opinion as out of date.

KoCAD 0.30.12026-10-29

• 改进Mac: shortcuts accept ⌘ instead of Ctrl (⌘S save, ⌘Z undo, ⌘A select all, ⌘1…7 views…) and menus show ⌘; Ctrl still works. ⌘+click adds to the selection (on the Mac, Control+click is the right click). The double click follows the macOS default interval and the keyboard returns to the window after the file and print dialogs.
• 改进Trackpad and Magic Mouse: resting fingers no longer start rotating the model; the menu closes only on a real scroll or pinch. Part tree: right-clicking a part opens the same menu as in the 3D view. Windows and Linux: nothing changes — the right button opens the menu and Ctrl is still Ctrl.
• 修复Mac: every right-click menu opens and stays open with the trackpad two-finger click, Control+click, the right button of any mouse and the Magic Mouse — in the 3D view, the feature tree, the part tree, the document tabs, the panel tabs and the drawing sheet. Before, the mere touch of the fingers on the trackpad or the Magic Mouse closed the menu the moment it opened.

KoCAD 0.30.02026-10-29

• 新功能Design verification → Experimental studies (BETA): choose Stability, Clearance, Motion, Bend sequence or Process rules and fill in the form (vectors as x/y/z, parts picked from a list of the document). New rows start empty and the confirmation boxes start unchecked; an invalid number is refused with the reason. Inputs can be saved in the document (Undo reverts) and the result exported as JSON. Editing the model cancels the job and marks the result out of date.
• 新功能Clearance and motion: exact distance between part pairs separates clearance, touching and overlap. Motion comes from already-solved mates (limit distance, concentric + limit angle), XR storyboard keys or a declared translation/rotation; it is sampled (refined near contacts) and shows where contact happened. "Show samples on the model" shows exactly the computed poses, without interpolating and without editing the document. The report always says "finite samples", never "continuously collision-free". Friction only with a confirmed coefficient.
• 新功能Bending: envelope of ordinary flanges flat, partly bent and final, with the same bend allowance as modelling. Bend sequence searches a candidate order against the real geometry of the press brake, punch and V die registered in KOREOS (KOREOS tooling button) and rejects an order in which one flange of the sheet passes through another. Each bend is shown with orientation and reason; the engineer can reorder and everything is checked again. TOOLING NOT REGISTERED: the registry is still empty, so today the result is "Missing data" and no order is offered. Even with tooling, the result is only a candidate: it does not approve handling, springback, force or the real setup.
• 改进Process rules (weld access, tool access, stock allowance, bumping) with measured and required values, each with a source and confirmation; the verification rule catalogue now has 32 versioned rules in PT/JP/EN. Calculation only on request, default limit 10 s / 10,000 operations (max 120 s), a reported memory ceiling and Cancel; nothing new loads at start-up. Still pending: real tooling registered and factory acceptance with three real parts.

KoCAD 0.29.02026-10-28

• 新功能Evaluate → Structural analysis (BETA): choose supports (fixed, pin, fork, roller or 6 DOF), loads (self-weight from the KOREOS density, distributed load, pressure × width, node load) and criteria (allowable stress with its source, deflection L/n, buckling factor). The colour map appears in the 3D view with legend, unit and deformation scale; the probe shows N, V, M, stress and displacement anywhere along a member.
• 新功能Natural frequencies (consistent mass, mass participation) and linear buckling (load multiplier) after the static case passes, with the mode drawn in the view. Results are bound to the document revision, the geometry hash and the rule/material versions and become "out of date" the moment you edit.
• 新功能Suggest the lightest JIS profile: per member group, it tries the profiles of the same family and proposes the lightest that meets stress, deflection and buckling for all members (option to keep outer dimensions). Shows weight and the official KOREOS cost before→after and the proposed 部材表 (CSV); nothing changes until you confirm, and Undo reverts it.
• 新功能Plate with a hole (plane stress): gross and net nominal stress separated from the peak at the hole edge, Kt, a mesh-convergence table and the extrapolated value; colour map with a probe. Out-of-plane plate bending is not handled and is refused.
• 改进Lightness: the calculation is a separate program (kocad_fea) that only starts when you ask, with a memory estimate first, an initial 2 GiB limit, one thread, a time limit and Cancel; closing the panel unloads the results. Nothing new loads when KoCAD opens.

KoCAD 0.28.02026-10-26

• 新功能Generate with AI thinks like an engineer: before generating, KoCAD shows how it read the request (overall size with feet and top, legs, frame, rails and height from the floor, bracing, top, feet) as editable premises. A line you correct binds every AI engine and the inspection.
• 新功能KoCAD inspects the REAL model before delivering: overall box, identical legs, leveling foot concentric with its stem inside the tube, top resting with no gap, rails at the requested height and sides, bracing only where asked, no loose part or interference, parts list = model. A critical error goes back to the engine (up to 4 rounds); it is never shown as done.
• 改进Engineering patterns for any engine (KOIA, Cascata, your own key): a real leveling foot (pad, nut, stem) enters the tube through the welded end cap, rails are cut at the leg faces, the top rests on the frame, triangular gussets sit in the opening. A requested section missing from the catalogue is kept and marked to confirm. Creation rules come from the server and change without a new version.

KoCAD 0.27.02026-10-26

• 新功能Generate with AI delivers the full package in the project folder: 3D, JIS drawing with 部品表 and full title block, PDF, drawing DXF and one per sheet part, bill of materials and processes. Anything that fails is named with its reason.
• 新功能A new project starts with the country/standard (Japan JIS, USA ANSI/ASME, Brazil ABNT/ISO, ISO, EN) with its rules alongside, the names language and an automatic folder with the standard structure. A flag on tabs, title and files. "Open folder" next to Print.
• 新功能Save / Open complete project: parts, assemblies, drawings (native + PDF), cutting DXF, GLB/STEP, bill of materials and processes (CSV, Excel, PDF), MP4 1080p film and a README index. Running it again updates without duplicates; files left out of date by a change are marked.
• 新功能3D navigation like SolidWorks/Fusion 360/AutoCAD: free orbit around the point under the cursor (trackball or turntable), zoom at the cursor, profiles and sensitivity in Options › Mouse. Selection: Ctrl+click, left→right (inside) and right→left (crossing) boxes, Ctrl+A, Esc, view-only Isolate, batch properties, print the selection only.
• 改进Print/PDF with live preview: A4–A0 sheet, orientation, kind and print language change at once; the saved PDF is the preview itself. New KoCAD icon in the KOMORI family.
• 修复Feet are centred and seated under their legs; a loose part (no contact) is refused before the preview and the Verifier flags it. "Standard parts" no longer leaves the library grey; ribbon labels are no longer cut at 1366/1600/1920.

KoCAD 0.26.02026-10-26

• 改进KoCAD for Mac is now universal: it runs on Intel and Apple Silicon Macs with macOS 12 or later. The CAD kernel, 3D libraries and DWG converters include both processors. Windows and Linux receive the same version.

KoCAD 0.25.22026-10-24

• 修复GLB/OBJ/STL assemblies no longer close KoCAD during Verification. Display meshes are explicitly marked as not clash-checked; open STEP to check interference. Native faults leave a local technical report, sent after sign-in on the next start, without model content or personal paths.

KoCAD 0.25.12026-10-24

• 新功能KoCAD 0.25: JIS design rules that run while you model, at Finalize and in Bob — hole × bolt, edge distance and pitch, bolt from load and thickness (class, nut, washers, length), weld × material, square-cut inclined bars, guardrails and stairs. Each finding states the reason and a suggestion; an error blocks sending until fixed or reviewed.
• 改进Cleaner screen: the 3D · 2D drawing · DXF · Plan · List · Print switch moved into the menu bar (no extra strip), the start card sits in the middle of the 3D view and the top-right controls are aligned.

KoCAD 0.25.02026-10-24

• 新功能KoCAD 0.25: replay construction, explosion and assembly from the Timeline; export offline H.264 MP4 at 720p/1080p or a short GIF. Pause, scrub and change speed from 0.5× to 4× while preserving the document and undo history.

KoCAD 0.23.02026-10-23

• 新功能KoCAD 0.23: local offline work without the 72-hour limit; server-side project history for Bob; reversible 3D preview, 3D/2D navigation, compact materials and A3/A4 engineering output. Templates and identity come from the server. BR/US/EU standards remain empty; JIS stays the default. See the delivery checklist for evidence and limits.
• 新功能Engineering Print / PDF: five dimensioned views (iso, front, top, side, back), parts list with thumbnails, A3 or A4, preview first. Linked to a case: official KOMORI logo and case QR.
• 改进Materials and purchasing as a compact list (one line per item, search and grouping with subtotals) that handles thousands of rows. Suppliers are optional; offline internet suggestions are never chosen for you.

KoCAD 0.22.02026-10-23

• 改进Preview failures return to the planner with the exact error for up to four repairs. Review the assumptions, apply the model and inspect the BOM, including unconfirmed purchased hardware.
• 修复Attach your drawing in Bob and ask “same as the drawing, in 3D”. Generation starts automatically: Cascade plans while KOIA helps read the drawing.

KoCAD 0.21.02026-10-22

• 新功能Open in KoCAD creates projects for cases without native files or downloads the latest revision. Arrows select, Enter opens and Esc closes.
• 新功能Update uploads a new revision. Review and apply the BOM through the official save function; active cases require an audited confirmation. Explicitly bind imported materials to geometry.

KoCAD 0.20.02026-10-22

• 新功能Ask Bob for an assembly and review editable assumptions before generating. Unspecified material, thickness, legs and holes follow house defaults; explicit drawing dimensions take priority. Review the preview before applying.
• 新功能Uncatalogued feet, handles and other purchased parts appear as orange envelopes and unconfirmed purchased rows. Add the supplier code in Edit list. Mounting dimensions, mass, price and load rating need confirmation; an envelope is not detailed hardware.
• 改进The same 3D drives the BOM, CSV/Excel, third-angle JIS drawing, PDF and per-sheet DXF with K0.44. Parameters and Save As preserve output links. Prices and standard times without verified sources stay pending.
• 修复Bob keeps visual references across follow-up messages and shows failure reasons. Notifications provide type, time, filters and read controls. Review history and preview before applying a repeated request.

KoCAD 0.19.02026-10-22

• 新功能Bob and Generate with AI show the current stage and a remaining-time estimate based on the queue and recent durations. Text and steps appear as they arrive when the engine supports streaming; other engines show the plan when it is received.
• 新功能After reviewing and applying, watch construction in 3D with the current feature highlighted in the tree. Pause between steps, Stop to retain completed work, or adjust speed. One Undo removes the completed group. Settings → General → AI: apply all at once restores the previous mode.
• 修复When the image reader is busy, generation waits for the GPU and retries automatically for up to about six minutes. Queue position, retries and Cancel are visible. Capacity limits are no longer confused with another generation in your account.

KoCAD 0.18.02026-10-22

• 新功能KOREOS Library → Materials & purchasing now shows the open document’s parts, materials, sizes, quantities, net/stock weights and official process letters. Linking a case is optional.
• 新功能Use Edit list to choose catalogue materials, change quantities/processes or add purchased items. Manual edits are marked, survive model changes and persist when you save the document.

KoCAD 0.17.02026-10-22

• 新功能Open Evaluate → Design verification or click the view badge. Review red bodies beside the panel; each warning explains values, reasons, sources and suggestions. Partial checks and missing data are explicit. Warnings guide review; you decide whether to deliver.
• 新功能In Sketch → Image reference, open a JPG/PNG or the first PDF page. Pick two points, enter the real distance and trace over it. Edit dimensions and opacity; image and scale are saved with the document. Area and length follow the sketch; mass derives from volume and density.
• 修复Inspection uses a geometry snapshot, allows continued editing and discards stale results. Shop radius and clearance limits remain identified as screening; JIS/ISO references do not certify the design. No solver, mesher, modal or buckling module loads at startup.

KoCAD 0.16.02026-10-22

• 修复Pricing uses catalogue kg/m, kg/m² and material/thickness prices. Missing data or standard times remain pending; the original STEP and Undo are preserved.

KoCAD 0.14.52026-10-21

• 改进Turn line trusses into structural members using a real section selected from the library; preserve the original sketch.
• 修复AI generation: preview and apply 2D drafts even without a defined thickness. Text-only answers get one drawing-format retry on the same AI.
• 修复2D→3D recognizes depth from JIS top and side views. Missing depth highlights the field and explains what to enter.
• 修复The DXF button saves the current draft profiles even without solids or with an existing model in the document. The file remains editable and can be reopened.

KoCAD 0.14.42026-10-21

• 改进The dialog warns when CAD changes have not been published. Anyone with the QR/link can view until it expires; the studio requires login.
• 修复After editing, choose Update to current version. File mode prepares the current model and replaces the previous QR/link. Publication time is shown in the dialog.

KoCAD 0.14.02026-10-21

• 新功能DXF opens visibly in Model space. Convert to 3D or open as a sketch, reviewing layers, units and thickness. The original drawing stays open.
• 新功能Cases have list, detail and preview columns. Review modeled stock, size-specific fasteners and processes against the case BOM, with differences, undo and optional sync on save.
• 改进Separate Features, Advanced Modeling and Insert tabs. Groups share large primary actions and columns of three small actions, collapsing into menus on narrow screens.
• 修复Material clicks only select. Choose a body/component, check its name and apply; Undo reverses it. Working time searches cases, edits minutes and sends checked rows to Design actuals.

KoCAD 0.13.02026-10-21

• 新功能Select parts, native assembly components, DXFs or case attachments with quantities. Set stock/remnants, gaps, margins, rotation and grain. Save factory-format DXF, checking A3 PDF per sheet and purchase lists. Conservative envelopes do not interlock concavities or fit within holes.
• 新功能Arrange weldment member cuts into commercial bars, showing angles, cut sequence and remainders. The calculation reserves saw kerf/end trims and compares selected stock lengths. Propose commercial bars through the existing purchase-list review flow; no shared cuts are assumed.
• 新功能Manage material/thickness rules in the shared KOREOS bend table: radius, K, relief, corner gap and minimum flange. Apply regenerates; saving requires permission and protects concurrent edits. Compare whole-stock and net material in the batch process calculator; saved estimates are not changed automatically.

KoCAD 0.12.02026-10-21

• 新功能Share a fixed revision or live edits by QR. Use actual size, placement, part selection and approximate mesh measurements. Core KOREOS or a configured company network is required.
• 新功能Capture camera, component motion, visibility, opacity, text and arrows as keyframes. Play in the browser/XR and save the storyboard in the CAD document. Local MP4 needs a compatible GPU/encoder; short GIF is supported. Persistent server export activation is pending.
• 新功能Download meshopt GLB, two LODs and USDZ with component motion. The browser copy reopens without a network or installation. Use the web player for all storyboard channels; native viewers have limitations.

KoCAD 0.11.02026-10-20

• 新功能User parameters: set a name, expression, unit (mm, degrees or unitless) and comment. Sketch and feature dimensions can use width/2 + 10. Rename with references updates expressions. Circular references show the failing path. Import/export the table as CSV. Values persist in .kcpart and follow undo/redo.
• 新功能Sweep: choose a closed profile and a continuous path sketch, with following or fixed orientation. A helix uses radius, pitch and turns. Create a body, join or cut. Tube profiles retain the bore. Loft connects two or more ordered profiles with smooth or ruled transitions. Guide curves and point termination are not yet available.
• 新功能Separate bodies appear in the Bodies folder. Combine using join, cut or intersection, optionally keeping tools. Move/copy by X/Y/Z values and split by a reference plane. The BOM shows each body’s weight. The optional timeline supports dragging the rollback marker, reordering features and double-click editing. Orders that break dependencies are rejected with a reason.