Is this 3D model free to download?

Yes, Simple Planetary Gears is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by jonducrou, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Simple Planetary Gears 3D printable model by jonducrou

Simple Planetary Gears

Source: Thingiverse by jonducrou

The Simple Planetary Gears is a free printable 3D model from Thingiverse by jonducrou. Set of planetary gears and arms to hold the planet gears in place. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

1,179 saves Source: Thingiverse Updated 2026-10-16 License: CC-BY-SA · commercial OK 31 makes Category: Other

Tags: Gear, makerbot, openscad, planetary, Planetary Gear, set of gears

About this model

Set of planetary gears and arms to hold the planet gears in place. Based off OpenSCAD code from thing:7390 (after cutting out significant portions of it - because the original thing is much more than a toy). The gear ratios are very interesting, and (at least at first) non-intuitive, depending on the part that is held stationary. With a fixed Annulus or Sun, this gives 1:6. With a fixed Planet carrier, this gives 1:5.

Frequently asked questions

Is this 3D model free to download?: Yes. Simple Planetary Gears is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by jonducrou.
Who made this model?: Designed by jonducrou, published on Thingiverse. 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.