BOM Shelter Bill of Materials shelter
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 identifies what kind of buying path exists: a kit, a BOM, or a mix that depends on the vendor. For the execution model behind these builds, see the engineering stack.

Projects
76 indexed
Categories
6 domains
Updated
October 2026
Recommended Starts

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 →
Complete Directory

All 76, ranked

Editorial ranking · not a GitHub score
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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 BOM Shelter stock.

Sourcing Guidance

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

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