Is this 3D model free to download?

Yes, Industrial Spur Gearbox / Gear Reducer (Cutaway version) is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" 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 LarsRb, published on MyMiniFactory. 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.

Industrial Spur Gearbox / Gear Reducer (Cutaway version) 3D printable model by LarsRb

Industrial Spur Gearbox / Gear Reducer (Cutaway version) photo 1

Industrial Spur Gearbox / Gear Reducer (Cutaway version) photo 2

Industrial Spur Gearbox / Gear Reducer (Cutaway version) photo 3

Industrial Spur Gearbox / Gear Reducer (Cutaway version)

Source: MyMiniFactory by LarsRb

The Industrial Spur Gearbox / Gear Reducer (Cutaway version) is a free printable 3D model from MyMiniFactory by LarsRb. PART OF MY INDUSTRIAL GEARBOX COLLECTION This is a fully 3D printable version of an industrial spur gearbox / gear reducer. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

164 saves Source: MyMiniFactory Updated 2026-10-16 License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-REMIX-NONCOMMERCIAL · non-commercial

Tags: industrial, gear, Cutaway, SPUR, gearbox, Reducer, version

About this model

PART OF MY INDUSTRIAL GEARBOX COLLECTION This is a fully 3D printable version of an industrial spur gearbox / gear reducer. This cutaway version can be used for training purposes, and has a gear ratio of 1:3.5 Spur gearsA spur gearbox is arguably the simplest and most common type of gearbox. It uses gears of different sizes. For example, if the first gear has 5 teeth and the second gear has 20 teeth the ratio is 1:4. This means that if you turn the first gear 720 degrees the second gear rotates 180 degrees. No additional hardware needed! UPDATE 7-16-2018I`ve added a cap that can make the gearbox non-cutaway, see the green parts in the fourth picture. When you want the gearbox to be non-cutaway, you have to print the file named with NON-CUTAWAY. Print settingsAxle 1Support: NoInfill: 60 –…

Frequently asked questions

Is this 3D model free to download?: Yes. Industrial Spur Gearbox / Gear Reducer (Cutaway version) 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 LarsRb.
Who made this model?: Designed by LarsRb, 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.