39-Tooth Gear STL Models for 3D Printing

«39-Tooth Gear STL Models for 3D Printing»

Gear models in this collection range from simple spur gears to helical, conical, and pulley-style parts. Spur gears are flat with straight teeth, while helical gears have angled teeth that change how they mesh. Conical gears turn motion between intersecting axes, and timing pulleys use a toothed profile for belts. Mixed gear sets bundle several sizes, and replacement gears are shaped around a specific housing or shaft.

When choosing a model, check the tooth profile, module or pitch, bore diameter, and whether the author includes a shaft mount or set screw. Look at the number of parts and whether assembly is required, and read the listed material and slicer settings. For printing, consider layer orientation, support needs, and whether the gear will carry load or only turn a light mechanism. Photos of real prints on the model page can show how the teeth and bore came out.

To refine the search, try synonyms such as cog, pinion, spur gear, helical gear, and timing pulley. Related topics include gearbox parts, RC car gears, appliance replacement gears, and toy gears. You can also search by the mechanism or device the gear belongs to, or by the tooth count and bore size you need.