Loisirs et makers

3D Models of Gear Boxes and Reducers

This collection gathers STL files for gear boxes used in 3D printing projects, from simple fidget toys to multi-stage reducers. You can compare worm, planetary and differential layouts, then adapt the parts to your own build. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

Le texte de cette collection est rédigé en anglais ; la recherche, elle, fonctionne dans toutes les langues.

Une collection Polyzon · 48 modèles sur 6 plateformes

Comment cette collection est composée

Polyzon compose cette collection à partir des résultats de recherche des plateformes connectées. Les doublons et les modèles sans aperçu sont retirés, les correspondances faibles sont placées à la fin, et le reste suit l’ordre de la recherche. Les modèles appartiennent à leurs auteurs : consultez les conditions sur la page de chaque modèle.

Règles de sélection : la rédaction de Polyzon · Texte mis à jour le 13/10/2026

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À propos de la catégorie

«3D Models of Gear Boxes and Reducers»

Models range from small fidget and puzzle boxes to worm gear reducers, planetary units, differential assemblies and multi-stage reduction boxes. Some are enclosed housings, while others are open frames that show the gear train. Vehicle and aircraft themes also appear, often with more parts and tighter clearances.

On the author's model page, check the overall size and scale, the number of parts, and how the assembly is held together. Look at the listed material and slicer settings, and whether the author shows photos of a real print. For moving parts, shaft and bearing fits matter more than the outer shape.

To narrow results, try synonyms such as reducer, transmission, planetary gearbox, worm drive or speed reducer. Related searches include differential, gear train, fidget gear box and model-specific gearbox parts. Combining a mechanism term with a use case, such as RC, robotics or display model, usually gives a shorter list.

FAQ

Questions fréquentes

What is the difference between a gear box and a gear train?
A gear box usually refers to a housing or assembly that contains one or more gear stages, while a gear train is the arrangement of gears itself. Many 3D models show the train inside an open or enclosed box.
What should I check before printing a gear box model?
Review the author's listed dimensions, part count, assembly notes and any stated material or slicer settings. Photos of a real print can show how the gears mesh and where clearances are tight.
Which file types are common for gear box models?
STL and STEP files are common for 3D printing and editing, while some authors also share native CAD formats. The available files are listed on each model page.
How do I refine a search for gear box models?
Try terms such as reducer, transmission, worm drive, planetary gearbox or differential. Adding a use case like robotics, RC or display model can narrow the results.
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