Extrude
Pull a closed sketch into a solid. Add material, cut it away, or keep only the overlap.
FreeSolid modeling for makers and engineers
Free, intuitive
CAD for makers.
Extrude, revolve, loft and fillet your way to gears, enclosures and parts you can print, cut and machine.
Interface
All model. No clutter.
No ribbons stacked three rows deep, no wall of 200 icons. BevelCraft keeps the tools in a few floating panels and gives the screen back to your part.
pen-assembly.bcraft
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Four workspaces
Design, Render, Manufacture, Drawing. One click apart, never in your way.
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One short toolbar
Grouped by task, with menus that unfold only when you need them.
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Model tree
Components, bodies and features, each one with a visibility switch.
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View cube & section
Jump to any view, or slice the model open to look inside.
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Timeline
Every step you take, in order. Scrub back, edit, and the model rebuilds.
Works with AI
One prompt. A real, editable part.
BevelCraft has a built-in MCP server, so AI assistants can drive it directly: sketch, constrain, extrude, fillet, assemble, draw and export. You describe the part; the model builds it step by step, checks its work with renders, and hands you a parametric file you can keep editing.
- ●Claude Code
- ●Claude Desktop
- Any MCP client
AI agent · bevelcraft MCP
>
- ✓document_newgears
- ✓sketch_createXY plane
- ✓sketch_addinvolute profile, 336 points · 7 circles
- ✓extrude10 mm → Body 1
- ✓sketch_createoffset 10 mm, for the hub
- ✓chamfer0.8 mm on 14 hole edges
- ✓sketch_addhub ring Ø17 / Ø9.6
- ✓extrudejoin 5 mm
- ✓renderiso view ✓
- ✓sketch_addpinion, 14 teeth, half-tooth phase
- ✓extrude10 mm → pinion
- ✓exportgear-24.stl · gear-14.stl
Done: two meshing gears, centre distance 38 mm, exported as STL.
Modeling…
Sketch & constraints
Draw it roughly. Constrain it exactly.
Every solid starts from a sketch. Sketch freely, then lock the intent in with constraints and dimensions. Change a number and the shape follows, keeping every tangent, every center, every right angle.
Lines, arcs, circles, rectangles, slots, polygons, splines and text. Import SVG outlines, and sketch on any plane or flat face.
Sketch 1 · Lever Fully constrained
Drag the sliders: the profile stays tangent, concentric and square.
Conical helix, routed pipe, spline cable · modeled in BevelCraft
3D sketches
Sketch in space, not just on a plane.
Route a pipe through a frame, run a cable around a corner, wind a conical spring. Draw polylines, arcs, splines and helixes straight in 3D, then sweep any profile along them.
- ✓ Bend radius at every corner, set once
- ✓ Constraints in 3D: along an axis, parallel, perpendicular, tangent, equal
- ✓ Distances and angles that drive the path
Solid modeling
Every operation a part needs.
Each of these was modeled in BevelCraft, step by step, and exported straight to this page. Grab one and turn it around.
Revolve
Spin a profile around an axis for anything round: shafts, knobs, pulleys, bottles.
Loft
Blend between two or more sections for smooth, flowing transitions.
Sweep
Run a profile along a path, flat or in 3D, for tubes, rails, handles and wires.
Fillet & Shell
Round off edges, then hollow the solid to an even wall thickness in one step.
Thread
Real ISO metric threads, coarse or fine, inside holes or on shafts.
Pattern
Repeat features in rows or around an axis, as many times as you need.
Chamfer
Bevel edges at a set distance to break sharp corners cleanly.
Assemblies
From parts to a product.
Model each part in its own space, place it, and tie it to its neighbours with joints. Scroll to take it apart.
Joints
Make it move, before you make it.
Joints tell parts how they may move: turn on an axis, slide along a guide, or both. Set the travel limits, drag one part and the whole mechanism follows. This crank-slider runs on the joints it was built with.
Drawings
From model to shop drawing in a minute.
When a part leaves your desk it needs a drawing. BevelCraft projects the views, cuts the sections and dimensions them for you.
Projected views
Drop a base view and pull the others off it, ISO first-angle.
Sections
Cut through any view, with hatching done for you.
Automatic dimensions
Sizes, steps, holes and radii in one click. They follow the model when it changes.
Tolerances & notes
Add deviations, fits like H7, notes and leaders.
Title block
A3, A4 and up, landscape or portrait, ready to print.
PDF & DXF
Send a PDF to the shop or a DXF to the laser cutter.
CAMAlpha
Then make it. Same app, same file.
Set the stock, pick the operations, watch the material come off in the simulation, and post G-code for your machine. No export, no second program.
Alpha: the CAM module is new and still evolving. Always check toolpaths in the simulation and dry-run new programs before cutting real material.
The flange, on a 3-axis mill
- FacingFace mill Ø2516 s
- RoughingFlat end mill Ø820 min 19 s
- 2D contour, 4 tabsFlat end mill Ø62 min 40 s
- 3-axis milling
- 4 & 5-axis milling
- Lathe
- CNC router: sheet cutting
- Engraving & V-carve
- Laser cuttingcoming soon
- Plasma & waterjetcoming soon
Import & export
Plays well with everything else.
Bring in what you already have, send out what the next person needs. Your own models are saved as .bcraft files on your disk, with autosave and crash recovery.
Import
- STEP
STEP · .step · .stp
Solid bodies from suppliers and other CAD tools, ready to measure, drill or build around.
- DXF
DXF · into a sketch
2D outlines from drawings and laser files become sketch geometry you can constrain and extrude.
- SVG
SVG · into a sketch
Logos, icons and artwork turned into profiles to extrude, engrave or cut.
- BCRAFT
BCRAFT · linked parts
Bring in parts from other BevelCraft files as components, and refresh them with one click when the source changes.
Export
- STEP
STEP · parts & assemblies
Hand the model to anyone, with every part of an assembly in its place.
- STL
STL · for 3D printing
Per body or the whole assembly, with the mesh tolerance you choose.
- PDF
PDF · drawings, cut lists, labels
Print-ready sheets for the workshop, plus nesting reports and part labels.
- DXF
DXF · drawings
Send flat views and sheets to laser cutters, plotters and other 2D tools.
- NGC
NGC · G-code · LinuxCNC
Toolpaths posted straight from the CAM workspace. More post-processors to come.
- CSV
CSV · cut lists
Panel sizes and quantities from sheet layouts, for ordering and costing.
Free
€0.
You don't need a mega suite to make a part.
Most makers and engineers use a fraction of what big, expensive CAD packages do. BevelCraft gives you the solid modeling that matters, for free.
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No subscription
Download it, use it. No trial that runs out, no monthly bill.
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No paywalled features
Assemblies, drawings and CAM are included. There is no Pro tier.
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Your files stay yours
Models live on your computer. Export STEP and STL whenever you want.
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Just an email to start
No password, no card. Sign in with a one-time code and start modeling.
And more
Built for the whole job.
The pieces that turn a modeler into a workshop tool.
Assemblies & joints
Place parts, connect them with revolute, slider and cylindrical joints, set limits, drag the mechanism and check for interference.
A kernel that doesn't crash your work
Geometry runs on OpenCASCADE in a separate process. If an operation fails, your session doesn't.
Native and fast
Written in Rust and run on your own machine, natively or in your browser. No lag from the cloud.
Be the first to craft.
BevelCraft runs right in your browser. Pop in your email, grab the code we send you, and start modeling. Free.