Heart Gears

admin | 05.12.2025

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This model features heart gears that utilize a new snap pin library for more reliable printing and easier assembly.

You can choose from three different gear ratios depending on how much effort you wish to invest in the assembly.

Assembly instructions can be found in the video and alternate links:

Video link
Alternate instructions courtesy of greenlig.

I recommend greasing the pins to ensure they turn smoothly. White lithium grease works best, but any lubricant that doesn't melt plastic should be fine.

The heart plates are named by their gear ratio: for example, 1-2 means 1:2. The period of one revolution is 1-2, while 2-3 is two revolutions, and 5-6 takes five revolutions, so don't get discouraged if it doesn't work out right away. If you need the parts separately, many free mesh editors and slicers can separate the parts, or you can export them from the OpenSCAD script.