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Show the thinker in your life some love! Steampunk and sciencey - these 3D-printed mechanical hearts deform as you spin them; turn enough and the <3 returns.

We currently offer THREE (3) sizes: [this listing is for the LARGE heart]
Small: ~6.6x 6.6x 3.8cm (2.6 x 2.6 x 1.5 inches)
Medium: ~8x 8x 4cm (3.15 x 3.15 x 1.6 inches)
Large: ~10x10x5cm (4 x 4 x 2 inches)

Multi-colored or solid colored options are available. Choose from the colors in the drop downs. If specific proportions are desired, also include these specifications.

All of our 3D printed products are printed on either our UP! 3D printer or MakerBot Replicator out of high-quality ABS plastic. Durable, sturdy material (same plastic as Legos).

Fabulous, unique gift for any occasion. Great birthday or graduation present for any fan of gears, mechanical toys, technology, puzzles or fun brain-teasers!

This fantastic contraption is open source, which means you can download it to build yourself here:
Designed by fabulous engineer and artist Emmett Lalish: http://www.thingiverse.com/emmett

The display pictured is not included -- but it can be purchased separately here:

Here are the listings for the other sizes and finishing options:

Also! Find us on Facebook! https://www.facebook.com/carry.the.what.replications

Valentine's Day Geek Love 3D Printed Mechanical Gear Heart Toy


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  • Handmade item
  • Materials: ABS plastic, 3d printer
  • Made to order
  • Ships worldwide from United States
  • Feedback: 1540 reviews
  • Favorited by: 488 people