Drawing 04 / open hardware field index

The field index

Seventy-six open hardware projects worth building, ranked by community support, documentation, maturity and whether you can actually obtain the hardware. Each entry says what kind of buying path exists: a kit, a BOM, or a mix that depends on the vendor.

Projects: 76 indexed
Sheet: 04 / 07
Categories: 06
Updated: 2026.10.25

Fig. 01 / Start here

Five ways in

Where to buy

Best documented build NASA JPL Open Source Rover A recognisable machine with real drawings, a parts list and a build community. Expect to source many components. Open entry → Best conversion OpenMower Start with a compatible commercial mower, then add open navigation. A prepared conversion kit is advertised. Open entry → Best accessible kit LeRobot SO-101 A defined BOM, printable parts and specialist sellers make this one of the easiest arms to actually buy and build. Open entry → Best vendor network OpenFlexure Microscope Printed parts, optics, kits and assembled instruments come from several independent suppliers. A model ecosystem. Open entry → Best specialised device Open Flight launch monitor A complete, useful product from off-the-shelf modules — with the sourcing and compatibility work still on you. Open entry →

Fig. 02 / Full index

All 76, ranked

Editorial ranking · not a GitHub score

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Loading index…

Kit

Complete or partial kits, assembled hardware, or project-specific parts from a known supplier.

BOM

Designs, CAD or schematics are published, but you generally source the parts yourself.

Mixed

Software is open; hardware availability and design openness vary by product or vendor.

Ranking is an editorial assessment of community support, documentation, maturity, visibility and hardware availability — not a precise measurement. Kit availability changes, and a published design does not automatically mean a complete device is for sale. Project links lead to official sites or repositories, not to OpenKit stock.

Next drawing / sourcing

Found a project.
Now find the parts.

Start with the supply map: marketplaces for open hardware, specialist kit builders, and the component suppliers that fill the gaps.

Open the supply map

Have a BOM already?

Paste it and let the matcher line it up against the parts index. No BOM leaves the browser.

Try the BOM matcher

The field index

Five ways in

All 76, ranked

Found a project.Now find the parts.

Found a project.
Now find the parts.