Is this 3D model free to download?

Yes, 66.46 : 1 Compound Planetary Gearbox for Robotic Arm 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 Gear_Down_For_What, 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.

66.46 : 1 Compound Planetary Gearbox for Robotic Arm

Source: Thingiverse by Gear_Down_For_What

The 66.46 : 1 Compound Planetary Gearbox for Robotic Arm is a free printable 3D model from Thingiverse by Gear_Down_For_What. ####Featured in these YouTube Videos! - Torque Test: - Design and Calculations: ####Where's Everything Else??? - This gearbox has an older, nearly identical twin, with the same. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

150 saves Source: Thingiverse Updated 2026-08-27

Tags: 66.46, :, 1, Compound, Planetary, Gearbox, for, Robotic, Arm

About this model

####Featured in these YouTube Videos! - Torque Test: - Design and Calculations: ####Where's Everything Else??? - This gearbox has an older, nearly identical twin, with the same outside form factor and different gear ratio, it can be found in the collection! ##### ######In This Collection you will find: - All other related parts for this project - Future Updates to this Project - All User Submitted Remix's - Click that watch button to get notifications on future uploads! ####Assembly - Assembly instructions can be found in the "Design & Calculations" Youtube Video above. - Aligning the gears with the marks is super important! - Placing the gears face up on a table, sort the planet gears in order (1-5) as shown in the main picture and video, insert sun gears, wrap the planets around the sun …

Frequently asked questions

Is this 3D model free to download?: Yes. 66.46 : 1 Compound Planetary Gearbox for Robotic Arm 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 Gear_Down_For_What.
Who made this model?: Designed by Gear_Down_For_What, 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.