After making my magnetic hearts necklace, I thought it would be fun to make a friendship heart version. I eventually decided to make them fit together like puzzle pieces and also added a magnet so they stayed together well. Not as necessary as separate necklaces but helps if you make this as a single necklace.
These are meant to be printed with a 3mm cube magnet, but I've also provided a version with no magnet spot. If adding the magnet, pause it before the layer where it would close it in and add the magnet. Start the print back up to seal the magnet in.
I did Hilbert Curve infill on top and bottom for texture.
These can be made into two separate necklaces or you can have them both on the ends of a necklace and you don't need a clasp.
I used the same puzzle cutting method as I did for my 3D printed hearts puzzle.
More information on the design process: https://www.instructables.com/Friendship-Heart-Necklaces/
Made in Tinkercad. Curved the heart in Fusion 360.
The author marked this model as their own original creation.