Features
From a photo, a sentence, or a sketch to a machined part — one browser tab, powered by AI.
HelioAI Chat & Build Loop UPDATED — updated Sep 2026
Describe your part in plain language — or hand HelioAI photos, drawings, and measurements — and it builds fully parametric CAD, measures its own work, and keeps iterating with you until it's right. It can drive the app too: export a file, draft a drawing, save and label the project, straight from the conversation.
- Natural language to fully parametric CAD — with voice, photos, drawings, and caliper measurements as input
- HelioAI drives the app: ask it to export a STEP, draft a drawing, or save and label the project
- Design Brief with question chips settles the spec before the build; a parametric fast fix corrects any dimension that drifts
- Opt-in "Review AI changes before applying" — every edit is transactional and lands as a real timeline feature
- Agent trace card shows each step, tells cancelled from failed honestly, and retries within bounds
- Replies in the language you write in, with starter prompts to get going and web research when it needs real-world facts
- Opt-in AI-led simulation workspace that sets up studies and compares the results (Pro)
Edit exact values here. Use Chat to add features or change the design.
Feature Timeline & Edit-in-Place NEW — shipped Sep 2026
The timeline along the bottom of the Model workspace is a live map of how the part was built. Hover a step and its faces light up, drag the rollback bar to any point in history, and double-click a step to edit it in place — with a preview of the exact rebuild before you commit.
- Every step carries its operation icon — extrude, fillet, hole, shell, draft — so the history reads at a glance
- Hover a step and its footprint lights up amber on the model
- Drag the ⋮⋮ rollback bar to any point in history — later steps are suppressed, never deleted
- Double-click a fillet, chamfer, extrude, shell, offset, hole, or draft to re-arm its gizmo and edit it in place
- Preview the exact rebuild and compare the original against the candidate before applying
Direct Editing, Precision Edition UPDATED — updated Sep 2026
Grab a face and move it. No sketch, no history surgery — pick the face, drag, watch the live readout, and accept when the number is right. Now with a real draft tool, variable fillets, and instant ghost previews, and every edit still lands in the timeline as a real feature.
- Move, Split, and Delete Face — offset, imprint, or remove a face and the body heals behind it
- Real Draft with a neutral plane, flip control, and an on-model handle
- Variable-radius fillets and Full Round, plus Shell across multiple faces and Align Face
- Sweep along a guide rail for profiles that need to follow a curve
- Instant ghost previews for hole, shell, and draft before anything commits
- Multibody-aware edits and a rebuilt Section view to check the result inside
Studio Look & Materials NEW — shipped Sep 2026
Parts look finished the moment they exist. A baked studio lighting rig and model-scaled ambient occlusion are the default view, and 15 physically based material packs — from bead-blasted aluminum to walnut — drop onto any body.
- Studio key, fill, and rim rig with scaled ambient occlusion on by default — no setup
- 15 physically based material packs: Bead blasted, Brushed aluminum, Brushed steel, Carbon fiber 2×2, Cast aluminum, Cast iron, Galvanized, MDF, Oak, Plywood (birch), Powder coat black, Bamboo, Cherry, Maple, Walnut
- Seamless textures — triplanar mapping wraps brushed and woodgrain finishes around curved faces without a seam
- Backgrounds and HDRI lighting presets with intensity and show-as-backdrop controls
- Adaptive GPU quality starts at a level your machine sustains; override it from the GPU chip
Render Studio & Live Realism UPDATED — updated Sep 2026
GPU path tracing in the browser — now live in the working viewport. Live Realism resolves bounced light, soft shadows, and reflections progressively while you keep orbiting and adjusting materials, so what you watch converge is the final still.
- Live Realism — a path-traced preview in the working viewport, not a separate render window
- Composition guides and saved camera shots for repeatable framing
- Output settings with resolution, sample, and time limits
- Physical material library — metals, plastics, glass, anodize — plus the new material packs
- Scene presets: studio, outdoor, and showroom lighting
- Adaptive quality so it runs on laptops and gaming GPUs alike
Presentation Mode & Display Styles NEW — shipped Sep 2026
Press P and the chrome disappears: toolbars, panels, and timeline drop away, the model is framed cinematically, and after a moment it begins a slow turntable. Seven display styles cover everything from a clean shaded solid to a toon illustration.
- Presentation mode (P) — chrome-free view with an idle turntable; orbit whenever you like and it resumes when you stop
- Shaded, Realistic, Wireframe, X-Ray, and Hidden line styles
- Illustration (toon) and Clay (matcap) for reviews and form checks
- Switch styles from the viewport toolbar or the ⌘K command palette
- Hide panels (⌘\) for an immersive viewport with the tools still in reach
Exploded View NEW — shipped Sep 2026
When a project has two or more bodies, an Explode chip appears on the viewport toolbar. Scrub the slider to separate them, pick a direction, and present the result — animated entirely in the browser, with the geometry untouched.
- Scrub from 0 to 100 % and every body slides out along its own vector
- Radial, X, Y, or Z explode directions
- Explode fully and Collapse (Esc) jump between the extremes
- Animated client-side — no rebuild, no change to the model
- Pairs with Presentation mode for a chrome-free exploded turntable
Smart Measure & Mass Properties UPDATED — updated Sep 2026
Hover any face or edge for an instant readout, pin the pairs that matter, and trust the numbers — distances are computed on the exact B-Rep geometry, not the display mesh.
- Hover readout card — entity type, area, perimeter, radius, and ΔX / ΔY / ΔZ
- Pin measurement pairs so they stay on screen while you work
- Exact B-Rep distances and angles — a measured radius is the modeled radius
- Auto Measure lays out engineering dimensions and tours them one at a time
- Mass properties — volume, surface area, center of gravity, and moments of inertia, with material density
Parameters, Configurations & Adjust Model UPDATED — updated Sep 2026
Name the numbers that matter, drive the rest with formulas, and save whole sets of values as configurations. The Adjust Model panel puts a slider and an exact-value field on every parameter, and each edit lands as a replayable step in the timeline.
- Named global parameters usable in any dimension, with formula-driven values — edge_margin = plate_w / 8 just works
- Save the current values as a named configuration and switch between sizes or trim levels; configurations travel with the project
- Adjust Model panel — a card for the selected feature plus a slider and exact-value field for every parameter
- Edits are transactional, persistent, and replayable in the timeline
- Typed Move and Scale — exact translations and scale factors, not just drags
- Linear and circular patterns stay editable after creation — change count, spacing, or angle
Snap, Drag & HUD NEW — shipped Sep 2026
Every depth drag — push/pull, extrude, fillet, hole, move — runs through one drag engine with the same modifiers, a graduated ruler, and an editable value chip. 3D snapping seats geometry on vertices, midpoints, and face centers, and the HUD keeps you oriented.
- One drag engine everywhere: a plain drag snaps to the unit step, Shift for fine steps, Ctrl for a free drag
- Graduated axis ruler and an editable value chip — type the exact number to land on it
- 3D snapping (K) to vertices, edge midpoints, and face centers
- Model HUD with a zoom-aware scale bar and live cursor XYZ; selection and commit flashes confirm what changed
- Responsive picking on dense models, adaptive resolution with an FPS readout, and a viewport that survives a lost WebGL context
Sketch, Constraints & 3D Peek UPDATED — updated Sep 2026
A full constraint-based 2D sketcher with automatic constraint detection, a robust geometric solver, precision dimension input, and a 3D Peek so you never lose sight of the solid you're sketching on.
- Lines, arcs, circles, ellipses, splines, and conics on any planar face or reference plane
- Geometric constraints: coincident, tangent, parallel, perpendicular, equal, symmetric
- Precision dimension input — type while you sketch, with an inline calculator (25/2+3 just works)
- Auto-constraint inference with on-canvas constraint badges
- Auto sketch dimensions fill in what you didn't type
- 3D Peek — tilt out of the sketch plane to check the solid, then snap back
Speaks Your Language NEW — shipped Sep 2026
HelioCad runs in 13 languages — the interface, HelioAI, and the emails. Pick yours once and everything follows.
- English, Español, Deutsch, Français, Português (Brasil), Italiano, Türkçe, and Polski
- 日本語, 简体中文, 繁體中文, 한국어, and Українська
- HelioAI replies in the language you write in
- Account and billing emails arrive in your language
- Change languages any time from your account settings
Phone Scan & Mobile AR UPDATED — updated Aug 2026
HelioCad runs on your phone and iPad — capture real parts as CAD models, view any model in AR on your bench, and install it like a native app.
- Guided multi-photo capture walks you around the part, shot by shot
- AI rebuilds a clean parametric model — not a raw scan mesh
- Seed a caliper measurement to lock in true scale
- View any model in AR, placed in your real workspace
- iPad landscape layout with touch gestures and long-press menus
- Touch-sized floating panels that stay out of the viewport's way
- Installable as an app (PWA) — one tap from your home screen
Photo Draft — Photos to Spec Sheet to Solid
Photograph a real part, draw one known-length calibration line, confirm the AI's proposed dimensions — and walk away with an engineering drawing and a parametric solid.
- Guided wizard in the Drawing workspace: photos → calibrate → dimensions → build
- Draw a known-length line on the photo to lock true scale
- AI proposes dimension lines on the photo — edit or confirm each one
- Confirmed dimensions become locked spec targets the build must hit
- AI-estimated values are flagged EST until you approve them
- Works on your phone too — photograph the part right at the bench
Reverse Engineer — Scan or Mesh to Solid
Drop in an STL, OBJ, PLY, 3MF, or glTF mesh and get real CAD back. Choose a clean parametric rebuild, or an exact mirror that follows the scan skin and reports the deviation it actually measured.
- Mesh files route straight into the Reverse Engineer workspace — no separate importer
- Auto-Convert recognizes prisms, revolves, drafted shapes, and hole patterns
- Parametric-only mode returns a real sketch-and-feature tree you can edit
- Exact mirror mode matches the scan skin within ±0.0005″, multi-body and boolean-editable
- Every conversion reports its measured max deviation — certified or flagged, never guessed
- Guided rebuild walks you through it step by step, or let the AI drive
- Hand the result to Model and keep building on it like any other solid
3D Modeling Operations
Industry-standard modeling operations with real-time preview and parametric history.
- Extrude, revolve, sweep, loft — sweep follows a real sketched path
- Fillet, chamfer, shell, draft
- Thread tool and Hole Wizard with standard sizes
- Boolean: union, subtract, intersect
- Linear and circular patterns
- Push/pull direct editing with live volume preview
- Crisp B-Rep edge display you can toggle off, plus shaded, realistic, wireframe, and X-ray modes
- Full parametric feature timeline with drag-to-reorder
Surfacing & Repair
For the shapes solids alone can't reach — and for the imported geometry that arrives broken. Fill open boundaries with real tangent continuity, then knit the shell back into a watertight solid.
- Patch an open boundary with G0 position or G1 tangent continuity
- Knit — sew loose surfaces into a closed, watertight solid
- Offset Surface to thicken or shell a selected face set
- Ruled surfaces to bridge two edge chains
- Emboss on Surface and Wrap Text for curved-face artwork
- Repair imported models that came in as open shells instead of solids
FEA Simulation
Built-in finite element analysis validates designs without leaving the platform — static stress, thermal, and modal studies on solid tetrahedral meshes, with animated stress overlays and a one-click engineering report.
- Static stress, thermal, and modal analysis on solid tetrahedral meshes
- Result views for von Mises stress, displacement, and safety factor
- Animated results: load-ramp, weak-zone hotspots, and mode-shape vibration
- Fixed, pinned, and roller supports with force, pressure, and temperature loads
- Guided step-by-step workflow with in-app face picking — or expert mode
- Downloadable PDF report with weak-zone analysis and a plain-language verdict
Machine Simulation
Run the whole job on a virtual copy of your machine — kinematics, travel, and material removal — before a single chip flies.
- Parametric machine rigs: VMC, 4th-axis, trunnion 5-axis, gantry, lathe, and mill-turn
- Animated kinematics — watch every axis move through your program
- Ghost mode, enclosure view, and live DRO readout
- Material-removal simulation shows the stock being cut in real time
- Upload your own machine to simulate your exact setup
- Pairs with built-in FEA to validate the part as well as the process
CAM Toolpaths — 2.5D to 5-Axis UPDATED — updated Aug 2026
Generate CNC toolpaths from 2.5D pockets to full 5-axis simultaneous — tuned for real cycle time, not just a pretty preview — and export G-code your machine will actually run. Describe your own machine and program against its real kinematics.
- Face, adaptive, contour, and pocket operations plus drilling cycles
- 4th- and 5th-axis toolpaths — indexed and simultaneous (Pro)
- Head-table 5-axis kinematics with a machine configuration selector, software TCP, and inverse-time (G93) feeds
- Machine editor — describe your own machine's axes, limits, and head, and simulate against it
- Curve picking for swarf, contour, and tilt control, with a calibration guide to dial in a new machine
- Stay-down linking, arc fitting (G2/G3), helix entry, and chip-thinning-aware feeds — watch the cycle-time estimate drop as you refine
- 19 built-in post-processors, grblHAL included, plus an interactive post editor — custom posts on Team
AI CAM — Orchestrate
Tell HelioCad what you're making and what you're making it on — AI Orchestrate proposes the stock, the setup, and the tooling, ready for you to approve.
- One sentence in — a full machining plan out
- Proposed stock size and material from your part's geometry
- Setup and work-offset suggestions
- Tool selection from your library, matched to each operation
- An ordered operation plan you can accept, edit, or regenerate
- Flows straight into toolpath generation and machine simulation
Feeds & Speeds — Machinist's Bench
A machinist's bench built into the platform: dial in RPM, chip load, and feed for your exact tool, material, and machine — then carry the numbers straight into your operations.
- Feeds and speeds computed from tool geometry, material, and machine limits
- Tool-geometry visualizers built into the Tool Library
- Chip-thinning-aware numbers that respect your spindle and rigidity
- Openable from any sidebar tab — it's there mid-CAM when you need it
- One click applies the result to the operation you're editing
Generative Fixtures & Workholding
The AI plans the workholding from the part itself — contour-matched soft jaws, vise fixtures, nesting trays, drill jigs, and inspection, welding, and assembly fixtures.
- Soft jaws cut to your part's exact contour
- Vise fixtures, nesting trays, and drill jigs generated from geometry
- Inspection, welding, and assembly fixtures for downstream work
- Fixture stock and clamping parameters you can edit
- Hands off to CAM so you can machine the fixture itself
Laser Engraving & Cutting
Design cut and engrave jobs in the same workspace as your 3D model. Pick a face on your part, import an SVG/DXF, or drop in an image — then send it to your laser with the right format for your controller.
- Guided wizard: source → roles → material → machine → layout → output
- Vector cutting and line engraving; raster engraving with Floyd-Steinberg, Jarvis, and ordered dithering
- Move layers on the bed — drag, 9-point anchors, or arrow-key nudge
- Per-layer kerf compensation applied on GRBL and Ruida alike
- AI settings advisor — web-grounded cut and engrave settings for any material
- Preflight DFM checks: sub-kerf features, double burns, cut order, fire risk, and a calibrated time estimate
- Test-matrix generator with AI scoring to dial in a new material fast
- .rd export with raster support, GRBL G-code, and EzCad
; HelioCad — GRBL laser job; controller: grbl bed: 400x400G21G90M5 S0; --- layer: Outline (cut) ---M8G0 X120.00 Y100.00M3 S800G1 X140.00 Y80.00 F600G1 X260.00 Y80.00 F600G1 X280.00 Y100.00 F600M5 S0; --- layer: Star inlay (engrave-line) ---G0 X200.00 Y110.00M3 S250G1 X215.00 Y160.00 F2500M5 S0M2
Laser Machine Control
Skip the SD-card shuffle — plug your laser into USB and run the job from the same browser tab you designed it in. GRBL and Ruida DSP controllers alike.
- Direct USB control over Web Serial — GRBL and Ruida DSP, no drivers
- Jog, home, frame, hold-to-fire pulse, and origin-corner setup from the browser
- Live job playback on the bed — head tracking, cut trail, framing overlay, and countdown
- Overhead camera view with the job projected onto the bed for exact placement
- No camera? Print a 1:1 placement template or cut a drop-in jig instead
- EzCad galvo boards auto-detected for fiber and MOPA markers
- Free HelioCad Bridge covers Ethernet and USB Ruida controllers
- Works in Chrome and Edge on desktop
Mold Making Workspace
Turn any solid into a multi-part casting mold with a 7-step wizard — parting, draft, flanges, connections, sprue and vents — for sand, silicone, or injection processes.
- Automatic parting-line detection with manual override
- Draft analysis and application before the mold splits
- Flanges, alignment pins, and connection features generated for you
- AI gating plan places the sprue, runners, and vents
- Process presets for sand casting, silicone, and injection
- True cores for trapped geometry — export all halves ready to make
AI Technical Drawings UPDATED — updated Aug 2026
HelioAI drafts a complete 2D technical drawing from your 3D model — ask for it in chat — then revises it the same way you built the part: by asking.
- Ask for it in chat — "draft a drawing of this" produces the sheet
- ISO or ANSI drawings with standard orthographic views, automatic dimensioning, and GD&T
- Content-aware view placement keeps views and annotations on the sheet
- Section and detail views, and any annotation editable directly on the sheet
- Conversational revision — "move the section through the bores" just works
- Start from photos instead with Photo Draft — see above
- PDF and DXF export
Assembly
Bring parts together with assembly mates, motion studies, and interference detection — and pull components straight from your own saved projects instead of re-modeling them.
- Mate constraints: coincident, concentric, parallel, distance, angle
- Insert from Library — drop in any part you've already saved as a component
- Update from source when the original part changes, with mates re-solved for you
- Stale components are flagged, so you always know what's out of date
- Joints with kinematic animation — watch the mechanism move
- Export assembly motion as a shareable GIF
- Interference and collision detection
- Bill of materials generation
- Exploded views
Import, Export & Projects
Interoperate with every major CAD format and 3D printing workflow. Solid formats open in Model; mesh and scan formats are handed to Reverse Engineer automatically — and the Projects manager keeps every file organized and every version recoverable.
- Import solids: STEP, IGES, BREP · 2D: DXF
- Import meshes and scans: STL, OBJ, PLY, 3MF, GLB / glTF, OFF
- Export: STEP, IGES, STL, OBJ, 3MF, glTF
- 2D export: DXF and SVG
- G-code for CNC · .rd for Ruida lasers · EzCad for galvo markers
- Projects manager — rename, duplicate, organize into folders, and restore an earlier version
Section Views, Navigation & Viewport Tools UPDATED — updated Sep 2026
Inspect interiors with dynamic section planes, then move around the model the way you're used to — a rebuilt view cube, a ⌘K command palette, navigation presets, and floating panels that leave the viewport to the part.
- Interactive section plane with drag handles and caps that fill the cut face
- Rebuilt view cube — Z-up, animated snaps, roll, fit, and orthographic / perspective toggle
- ⌘K command palette everywhere — every command, display style, and workspace by name
- Compact command header with a Workspace dropdown and a More menu, so the viewport gets the room
- Glide, Pivot, and Flow mouse presets for orbit, pan, and zoom the way you're used to
- Floating, draggable panels — Browser, Parameters, Parts — dock them where you want
- Per-body color and transparency, edge display, grid, ground shadow, and reference-geometry toggles