The Gear Cube design isn’t something I invented — versions of this idea have existed since before 2010. The earliest 3D-printable model I found was designed by Emmett and is available on Thingiverse.

You’ll need to print:

• 4 large gear pieces
• 4 small gear pieces
• 8 connector pieces
• 1 central piece (heart)

There’s also a combined file that includes all parts in one model for convenience. I recommend using the files in the “Updated” directory, as they’ve been refined for smoother assembly and easier problem-solving. The “Original” files are still provided for those who might want replacement components for older prints.

Printing tips:
You won’t need any support structures. A basic print profile works well. I used a brim to improve adhesion to the print bed.