OSSM Open-Source Reference

Find official OSSM source code, hardware files, firmware documentation, licenses, bills of materials, issues, and contribution guidance.

OSSM hardware and software are developed openly. User setup and safety stay on this site; build instructions and technical implementation live in their dedicated documentation.

Official destinations

ResourceDestination
Source repositoryresearchanddesire/ossm
Hardware source fileshardware/ in the OSSM repository
Product bill of materialsAssembly BOM
Build instructionsOSSM Assembly
PCB referenceOSSM hardware developer docs
Firmware and software referenceOSSM software developer docs
Safety features in firmwareDeveloper safety-feature reference
LicenseCERN Open Hardware Licence Version 2 — Strongly Reciprocal
Issues and bug reportsOSSM GitHub issues
Contribution guidanceDeveloper documentation contribution guide

Modified hardware or firmware changes the safety case

Re-run the unloaded homing, minimum-motion, and Stop tests after any change. A community modification is not automatically tested or supported by Research and Desire; review its source, license, known issues, and maintenance status before use.

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