Toys & figurines

LEGO Technic Gear 3D Models and STL Files

This collection gathers STL models for LEGO Technic-style gears and related brick parts. You will find spur gears, planetary assemblies, figures and custom bricks. It helps you compare shapes and plan a 3D printing project around a brick system. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

A Polyzon collection · 48 models from 5 platforms

How this collection is put together

Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.

Selection rules: the Polyzon editorial team · Text updated 2026-10-14

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About the category

«LEGO Technic Gear 3D Models and STL Files»

Gear models here range from simple spur gears to multi-part planetary and ring gear sets. Tooth count, module and overall diameter change how a gear sits in a build, and the author's page usually lists these details. Brick figures, custom bricks and motor or pin adapters appear alongside the gears and serve different roles in a model.

When choosing a gear, check the tooth count, pitch, bore size and the way it mounts to an axle or pin. Look at the number of parts, whether the design needs supports, and the material and settings the author lists. Photos of real prints can show how the teeth and hubs come out on a 3D printer.

To refine the search, try terms such as spur gear, planetary gear, ring gear, brick figure or Technic axle. Related topics include gear reducers, custom brick parts and motor adapters. Combining a part type with a size or ratio often narrows the results more than a single broad phrase.

FAQ

Frequently asked questions

What does the tooth count change in a LEGO Technic gear model?
Tooth count affects the gear's diameter and the ratio it creates with another gear. A higher count usually means a larger gear and a different speed or torque relationship in a build.
How can I check the size and mounting of a gear model?
Look at the listed diameter, bore, axle or pin connection, and any notes about the module or pitch. Compare those details with the parts you plan to use in your build.
What should I look at before printing a gear?
Check the orientation on the plate, the need for supports, and the material and settings the author lists. Photos of real prints can help you judge how the teeth and hub are likely to form.
Which related parts are worth searching for?
Planetary sets, ring gears, gear reducers, brick figures and motor or pin adapters often appear in the same collections. Searching for a part type plus a size or ratio can bring up more options.
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