Archived (Oct 18, 2026). This repo is no longer maintained. Its work moved to:

• CAD viewer / "open a folder, open a STEP, talk" sessions, XR → orbefab/orbesim
• Circuit simulation → orbefab/sim-engine (Rust electronics engine, checked against ngspice)
• Microcontroller emulation → orbefab/micro-emulator
• CAD parts and assemblies → orbefab/models

Some of these repos are private.

sfab-bench

A robotics simulation platform on your Mac: parts, boards, firmware and physics in one world. Talk to it with the AI you already pay for.

Open a folder, open a STEP, talk with Codex, Claude Code, Grok, or OpenCode already on the machine. This app does not take API keys for chat. Quest Browser on the same Wi-Fi joins that process.

bench.sfab.ai · Download

Install

Unzip sfab-bench-<version>-arm64.app.zip from Releases, drag it to Applications, then System Settings → Privacy & Security → Open Anyway. Ad-hoc signed, not notarised yet.

From a clone (Node 22.5+, pnpm):

pnpm install
pnpm desktop

Quest: same Wi-Fi, Quest Browser, pair once. Details: docs/user/.

After you install

Open a folder, open a STEP or GLB, then talk. This app does not author CAD.

• Already have parts: Open folder and pick that directory.
• Starting from scratch: clone sfab-bench-starter, Open that folder, pick cad/block.step. The starter already has Jake's CAD skill and a Bench skill. Ask in chat for another part.

Do not open this app repo as a CAD project. It has no parts.

Layout

apps/desktop    Electron shell (folder dialog, starts the server)
apps/web        Mac and Quest client
apps/server     API, pairing, STEP loader, harness agents
apps/docs       Product home

MIT. See LICENSE.