Is this 3D model free to download?

Yes, Three Heart 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 emmett, 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.

Three Heart Gears 3D printable model by emmett

Three Heart Gears

Source: Thingiverse by emmett

The Three Heart Gears is a free printable 3D model from Thingiverse by emmett. Just in time for Valentine's I've updated my Heart Gears. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

16,554 saves Source: Thingiverse Updated 2026-11-06 License: CC-BY-SA · commercial OK 548 makes Category: Decor & Art

Tags: 3d Geek box, art, Gear, gears, gear mashup, Heart, mechanism, openscad, snapfit, valentine

About this model

Just in time for Valentine's I've updated my Heart Gears. These use my new snap pin library, so they print more reliably and are much easier to assemble. I've also included three different gear ratios so you can choose how much frustration you wish to impart. Assembly instructions can be found in this video: Alternate instructions are here courtesy of greenlig. Pretty cool system for making interactive 3D instructions - check it out. I didn't make this design Customizer-friendly, because there aren't really changeable parameters. However, the OpenSCAD file has been rewritten and greatly simplified to make it easier to cut gears out of your own shape. I'm always excited to see new derivative gear mashups.

Frequently asked questions

Is this 3D model free to download?: Yes. Three Heart 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 emmett.
Who made this model?: Designed by emmett, 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.