Planetary Gear Assembly 3D printable model by Prabhakar Purushothaman
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Planetary Gear Assembly

Source: MyMiniFactory by Prabhakar Purushothaman

The Planetary Gear Assembly is a free printable 3D model from MyMiniFactory by Prabhakar Purushothaman.  This "Planetary Gear Assembly" or epicyclic gear train is a system consisting of one or more outer gears, or planet gears, revolving about a central, or sun gear. You can download the STL file from the original listing below and print it at home.

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578 saves Source: MyMiniFactory Updated 2026-09-19 Filament: 22 g License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-REMIX-NONCOMMERCIAL · non-commercial

Tags: gadget, gears, mathmatics, planet

About this model

 This "Planetary Gear Assembly" or epicyclic gear train is a system consisting of one or more outer gears, or planet gears, revolving about a central, or sun gear. Used by the Greeks, the device was named after its earliest application, modeling of the movements of the planets in the heavens. At around 500 BCE, the Greeks invented the idea of epicycles, of circles traveling on the circular orbits and with this theory were able to approximate the moon's elliptical path through the heavens.

Frequently asked questions

Is this 3D model free to download?
Yes. Planetary Gear Assembly is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?
The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Prabhakar Purushothaman.
Who made this model?
Designed by Prabhakar Purushothaman, published on MyMiniFactory. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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