20-tooth spur gear
- Forge engine (B-rep, STL / OBJ / STEP-ready)
- Automatic QC 10/10
- Published Oct 3, 2026
Make it yours
Build this runs the exact brief below and gives you the STL / OBJ in about a minute. Change it opens the generator with the brief in the box so you can edit a dimension first. Free, no account.
The prompt
Create one solid spur gear with exactly 20 teeth, outside diameter 50 mm, thickness 10 mm, a 5 mm through bore, and a flat bottom. Use an involute profile with 20 degree pressure angle. The outside diameter is the tooth-tip diameter, not the pitch diameter. Keep it a single watertight printable solid.
This is the one-paragraph brief the generator built from: dimensions in millimetres, features named, nothing else. Writing yours the same way is the quickest route to a first-time build — see the prompt contract.
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