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Gear for BM-1: 3D Models and STL Files

This collection gathers STL files for gears and gear assemblies that can be relevant to BM-1 mechanisms. You will find replacement gears, compound and planetary gearboxes, bevel and worm sets, and parametric gear generators. It helps you compare part geometry before opening an author's model page. 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.

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 14/10/2026


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À propos de la catégorie

«Gear for BM-1: 3D Models and STL Files»

Gear models in this topic range from single replacement wheels to multi-stage reductions. Compound and planetary designs pack several ratios into a compact housing, while bevel and worm sets change the direction of rotation. Parametric generators let you set tooth count, module, and bore size before exporting an STL.

When choosing a gear, check the module or diametral pitch, tooth count, pressure angle, and bore diameter against the part you need to replace. Look at the author's photos of real prints and read the listed material and settings, because shrinkage and layer height affect how teeth mesh. Also note the number of parts and whether the assembly needs fasteners, axles, or supports during printing.

To narrow the results, try synonyms such as cog, pinion, spur gear, helical gear, and gear wheel, or add the mechanism type you are working on. Related searches include gearbox, reducer, gear train, extruder gear, and motor gear. If you know the reduction ratio or tooth count, include it in the query, but verify the dimensions on the model page rather than relying on the title alone.

FAQ

Questions fréquentes

How do I identify the gear I need for a BM-1 mechanism?
Measure the original gear's outer diameter, tooth count, bore, and thickness, and compare them with the model's listed dimensions. The module or pitch and pressure angle also matter for correct meshing.
Can I print a gear in resin instead of filament?
Both materials appear in gear projects, but resin gears can be brittle under load while filament gears may wear differently. Check the author's material notes and your printer's capabilities.
Can I scale a gear model to fit?
Scaling changes tooth size and center distance, so it usually affects how gears mesh. It is better to find a model with the correct module and tooth count or adjust the source file parametrically.
What should I check before printing a gearbox assembly?
Review the part count, axle sizes, clearances, and whether the design expects supports or post-processing. Test-fit the gears after printing and adjust the print settings if the teeth bind.

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