CAD on your Mac. Talk to it with the AI you already pay for.

Desktop

SFab Bench: files, a STEP on the canvas, and Codex chat

Quest

  • Claude Code
  • Codex
  • Grok
  • OpenCode

How to run

Mac

Unzip the .app from Releases, drag it to Applications, then System Settings → Privacy & Security → Open Anyway. Ad-hoc signed, not notarised yet. Or clone this repo and pnpm desktop. Then open a folder of STEP or GLB, or clone the starter and open cad/block.step.

Quest

Quest Browser on the same Wi-Fi, pair once.