Can I just download every open-source robot file and sell it?
No. Several of the most popular open robot projects use non-commercial or unclear licenses. We check each file's real license before listing it and only sell GREEN (fully permissive) or AMBER (permissive with conditions like attribution or share-alike) items.
What happens if an upstream project changes its license later?
Open licenses are generally irrevocable for versions already released under them. We pin the exact commit or release we sourced each file from and re-verify licenses before every release, so a later license change upstream doesn't retroactively affect files we already sold.
What's the difference between GREEN and AMBER?
GREEN means permissive (MIT, Apache-2.0, CC-BY-equivalent), print it, sell it, modify it freely, keeping attribution. AMBER means commercial use is fine but comes with a duty, usually share-alike: if you modify the design before reselling it, you must publish your modified files under the same license.
Do you sell a part if you can't fully verify its license?
No. If we can't verify a file's real license, or its source doesn't actually contain a usable file, we exclude it rather than guess. Two full platforms were excluded from the current catalog for exactly that reason, one had no license file at the repo root, the other's files weren't actually reachable by download.
Can I use these files to build a product I sell myself?
Yes, subject to the license on that specific listing. Each listing states its exact attribution text and whether it's share-alike.
Is a part I buy here safety-certified?
No. Parts are components, not certified finished products. See our Safety page for what to check before powering on a build.