cad

parametric cad, in your drive, with an agent-native sdk. thats vibeCAD.

parts

a part is a .part.md file with typed frontmatter + a geometry body written in jsx-like sdk calls. example:

---
kind: part
name: motor-bracket
material: aluminum-6061
---

# motor bracket

<Part>
  <Extrude profile={Rectangle({ w: 80, h: 40 })} depth={6} />
  <Hole pos={[20, 20, 0]} diameter={5} depth={6} />
  <Fillet edges="all" radius={2} />
</Part>

that compiles to a b-rep (opencascade under the hood) and you get a real 3d preview in the editor.

constraints

the sdk is declarative. you can reference values from the frontmatter or other files:

<Extrude
  profile={Rectangle({ w: params.w, h: params.h })}
  depth={params.thickness}
/>

change params.w and the whole part rebuilds. change it in an agent, same thing. this is the unlock — agents can drive parametric cad because its just typed code.

import / export

• import: drag in a .step, .stl, .iges, .dxf file. we convert to a .part.md wrapper that references the imported geometry.
• export: part → export or via agent with cad.export(part, 'step').

simulation

vibeSIM runs embedded in the editor. click simulate on a part and pick a physics domain. for full closed-loop training see agents → scheduling and the memo on the landing page.

limits

current kernel is opencascade via wasm. reliable for most mechanical work. very large assemblies (>500 parts) are supported but slower than native tools. we are actively improving perf fr.