Onshape SpaceMouse Linux Bridge

This project now uses a protocol bridge instead of synthetic mouse gestures.

Architecture

1. Chrome patches the Onshape page so it exposes the Windows 3Dconnexion client path on Linux.
2. A local TLS server on https://127.51.68.120:8181 answers Onshape's 3dconnexion/nlproxy discovery call.
3. Onshape opens a WAMP websocket to the bridge.
4. The bridge reads spacenavd events from /var/run/spnav.sock and writes camera state back through Onshape's 3Dconnexion protocol.

Files

• Chrome patch extension: /home/benlevin/spacemouse-onshape-linux
• Python protocol bridge: /home/benlevin/spacemouse-onshape-linux/protocol_bridge
• udev rule for WebHID access if you still need raw HID experiments: /home/benlevin/spacemouse-onshape-linux/99-spacemouse-webhid.rules

Install

1. Keep spacenavd running.
2. Load the unpacked Chrome extension from /home/benlevin/spacemouse-onshape-linux.
3. Start the local bridge from the protocol_bridge directory.
4. Open https://127.51.68.120:8181 once and allow the certificate exception.
5. Refresh Onshape.

Current status

The old WebHID gesture shim has been removed in favor of the native protocol direction. The remaining work is in the bridge runtime setup and verification.