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.
Five ways in
All 76, ranked
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Complete or partial kits, assembled hardware, or project-specific parts from a known supplier.
Designs, CAD or schematics are published, but you generally source the parts yourself.
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.
Found a project.
Now find the parts.
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