Is this 3D model free to download?

Yes, Mechanical Counter 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 Brian Law, 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.

Mechanical Counter 3D printable model by Brian Law

Mechanical Counter

Source: MyMiniFactory by Brian Law

The Mechanical Counter is a free printable 3D model from MyMiniFactory by Brian Law. I had always wondered how the mechanical counters worked, and it turned out to be nothing like the way I thought it would be, but something simpler and more elegant. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

248 saves Source: MyMiniFactory Updated 2026-10-08 License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-REMIX-NONCOMMERCIAL · non-commercial 1 makes

Tags: mechanical, counter, mechanicalcounter

About this model

I had always wondered how the mechanical counters worked, and it turned out to be nothing like the way I thought it would be, but something simpler and more elegant. Having discovered this I worked out this design that could be 3D printed. Research on the Internet several designs that kept all the gearing internal to the number reels, but the one that is more appropriate to help with the understanding of the workings was the one shown on the left. This has 3 number reels that allow you to count to 999 and uses a lost motion gear pair in between each reel, that transfers the motion to the next reel after 1 complete revolution of the lower digit reel. This design is based on the model developed by Matthias Wandel, you can see it here have changed some of the features to make it suitable for …

Frequently asked questions

Is this 3D model free to download?: Yes. Mechanical Counter 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 Brian Law.
Who made this model?: Designed by Brian Law, 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.