Know someone with a big heart and a good sense of humor? Give them this anatomically correct Voronoi heart to show that you care, and also that you’re a little weird. Either way, it is sure to put a smile on their face!

See here for stable download: https://thangs.com/mythangs/file/50472

The Voronoi surface follows both the inner and outer surfaces of the heart, so the inner walls of the ventricles and atria are present. Valves have been removed, so there are holes passing between the cavities.

Internal supports have been added, especially for the bottom of the inner wall of the left ventricle that would start printing in mid air otherwise. The supports are barely visible in the finished print, so they do not need to be removed.

You will need to add outside support for the overhangs of the pulmonary veins. You will also need some general support for the area around the apex. The “Tree” supports in Cura work well for this.

The other pictures above show an example of a “Big Heart Award.” The printed piece is mounted on a block of dark walnut. The vena cava is just right for a bundle of flowers, and the ventricles can hold small chocolates. This particular award went to a big-hearted frontline healthcare worker during the COVID19 pandemic.

See video here: https://youtu.be/PnwTtTEYTmc

Here are more of my anatomical designs you might enjoy:

Novelty:

Wearable Spine: https://www.thingiverse.com/thing:4982223
Skull Jewelry Set: https://www.thingiverse.com/thing:4980129
Happy Halloween Spine: https://www.thingiverse.com/thing:4979522
Eyeball Windchime: https://www.thingiverse.com/thing:4978632
Fingerbone Windchime: https://www.thingiverse.com/thing:4962956
Skull Windchime: https://www.thingiverse.com/thing:4962814
Creepy Custom Embossed Spine: https://www.thingiverse.com/thing:4916377
Mini Articulating Spine Keychain: https://www.thingiverse.com/thing:4891846
Big Bowl O’ Back Bones: https://www.thingiverse.com/thing:4881377
Vertebral Stacking Blocks: https://www.thingiverse.com/thing:4868387
Anatomically Correct Voronoi Heart: https://www.thingiverse.com/thing:4636146
Vertebrae with Secret Compartment: https://www.thingiverse.com/thing:4633188
Brain Puzzle: https://www.thingiverse.com/thing:4158232
Anatomical Heart Puzzle: https://www.thingiverse.com/thing:4146688

Educational:

6-Piece Magnetic Female Pelvis Model: https://www.thingiverse.com/thing:4946668
Fryette’s Laws Teaching Tool: https://www.thingiverse.com/thing:4887712
Hip and Pelvis Model: https://www.thingiverse.com/thing:4875641
Flexible Three-Quarter Spine Model with Display Stand: https://www.thingiverse.com/thing:4863003 Full Size Anatomically Correct Human Foot Model: https://www.thingiverse.com/thing:4849504
Full Size Anatomically Correct Human Hand Model: https://www.thingiverse.com/thing:4841107
Full Size Anatomically-Correct 18-Piece Magnetic Human Skull Model: https://www.thingiverse.com/thing:4830026
Full-sized Anatomically Correct Articulating Spine: https://www.thingiverse.com/thing:4801717
Articulating Lumbar Vertebrae: https://www.thingiverse.com/thing:4637241