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3D Models of Gears and Gear Fidgets to Print

This collection gathers 3D models built around gears: fidget spinners and rings, planetary and differential assemblies, parametric generators and print-in-place toys. It helps when you want a moving mechanism for 3D printing rather than a static figure. Most files are STL, and many are meant to come off the 3D printer already assembled. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

このコレクションの本文は英語で書かれています。検索自体はどの言語でも使えます。

Polyzonのコレクション · モデル48件 7サイトから収集

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このコレクションは、Polyzonが対応サイトの検索結果をもとに作成しています。重複やプレビューのないモデルは除外し、関連性の低いものは後ろに回し、それ以外は検索結果の順に並べています。モデルの権利は各作者にあります。利用条件は各モデルのページでご確認ください。

選定基準：Polyzon編集部 · 本文の更新日：2026年10月12日

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«3D Models of Gears and Gear Fidgets to Print»

Gear fidgets form the largest group: rings, spinners and small cubes where the teeth turn in your hand. Planetary and differential sets go further, with several gears meshing around a central axis, and they usually involve more parts and a longer assembly. Parametric generators and less common shapes, such as elliptical or helical gears, are aimed at people who want to change tooth count, module or size before exporting an STL.

When choosing a model, look at the size and scale, the number of parts and how they join, and whether the author lists supports, layer height and material. The clearance between teeth decides whether a mechanism turns after printing, so read the notes on tolerances and try a small part first. Photos of real prints on the model page tell you more than a render.

To widen the search, use synonyms and related terms: cog, spur gear, helical gear, planetary gearbox, differential, ratchet, fidget spinner, print-in-place mechanism. Pairing a mechanism word with a use word, such as toy, puzzle or desk, brings up different results. Related topics include mechanical toys, kinetic sculptures and printer parts that use gears.

FAQ

よくある質問

What does print-in-place mean for gear models?
The parts are modeled with clearances so they come off the plate already assembled and able to move. Check the clearance and nozzle size the author states, since these decide whether the teeth separate cleanly.
Do gear fidgets need supports?
Many are designed so no supports are required, but this depends on the orientation and overhangs of each part. The model page usually says whether supports are needed and where.
How do I scale a gear model?
Scaling changes tooth spacing and clearances, so a working pair should be scaled by the same factor on both parts. After resizing, re-check the fit and the wall thickness of the smallest features.
Which search terms find similar models?
Try cog, spur gear, helical gear, planetary gearbox, differential, fidget spinner or print-in-place mechanism. Adding a context word such as toy, puzzle or desk shifts the results toward different designs.
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