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3D Models of 20 mm Gears and Gear Mechanisms

This collection gathers 3D models related to 20 mm gears, from simple gear shapes to motorized assemblies and fidget spinners. It helps you find parts for 3D printing projects that need a specific gear size or a starting point for a mechanism. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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Seçim kuralları: Polyzon editör ekibi · Metin güncellendi: 13.10.2026

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«3D Models of 20 mm Gears and Gear Mechanisms»

The models range from standalone gears with different tooth profiles to gear fidgets, motorized gearboxes, and calibration cubes. Some are designed as functional parts for mechanisms, while others are stress-relief toys or test prints for checking dimensional accuracy. Rail mounts and adapters that use 20 mm dimensions also appear, though they serve a different purpose.

When choosing a gear model, check the tooth count, module, and bore diameter on the author's page, as these determine how it fits with other parts. For motorized versions, review the required motor type and any assembly instructions. Also look at the recommended layer height and material, since small gears can be sensitive to print orientation and cooling.

To narrow your search, try synonyms like cog, pinion, or sprocket, and combine them with terms such as fidget, motorized, or calibration. Related topics include gearboxes, planetary gears, and rack-and-pinion systems. If you need a specific size, adding the diameter or tooth count to the query can help.

FAQ

Sıkça sorulan sorular

What is the difference between a gear and a sprocket?
A gear meshes with another gear to transmit motion, while a sprocket engages with a chain or belt. Both can appear in 3D printing projects, but they are used in different mechanisms.
How do I choose the right gear for my project?
Check the tooth count, module, and bore diameter to ensure it fits with other parts. Also consider the load and speed it will handle.
Can I scale a 20 mm gear model to a different size?
Scaling a gear changes its tooth size and may affect how it meshes with other gears. It is usually better to find a model designed for the desired size.
What materials work well for printing small gears?
PLA and PETG are common for general use, while ABS or nylon may be chosen for higher wear resistance. The author's page often lists recommended materials.
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