Heart-Shaped Box

Heart-Shaped Box - inspired by homemade-modern.com and Nirvana ;) Ready for mold making and casting in plaster or concrete.


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Heart-Shaped Box - inspired by http://homemade-modern.com/ep72-concrete-heart-box/ and Nirvana ;)

At 100% size the box is pretty small, if you want to store something bigger than a piece of paper or a really small gift you should scale the model up. The one I made is 140% which is still pretty small but perfect for me. The model should scale up pretty good, there are no difficult parts to print.

I split up the top piece in two parts so you can print it without any overhands or support material. Just align the holes in both pieces and glue them together. Preferable with some superglue so you get a tight fit.

The inner part of the top has quite a bit clearance to the outer box but if you cast this in concrete it will be easier to get it to fit. (I may upload a box just for 3d printing with tighter tolerances.)
Use the printed heart shaped as framing for the silicon mold tho you don't have to use huge amounts of extra silicon (that stuff isn't cheap). Cut them open after your silicon has hardened, if you are careful you can use them later for stabilizing your silicon mold during the casting process. (Or print new ones).

- use a soft silicon
- you properly have to cut your silicon open to remove your parts (at least I had to)


I added a version for 3d printing only. It has thinner walls and a better fitting top.

Materials and methods

- all printed parts
- cardboard or anything flat
- hot glue
- superglue
- silicon ready for mold making
- some casting material (resin, plaster or anything you like)

- some sort of spray clear coat
- sandpaper



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Printed on:
ultimaker 2
Looked great on Orange PLA 2.85mm; I printed only the Bottom V2 and Top V2 though. I added a protrusion on the bottom part of 2mm, reduce and offset the lid to create a tolerance of either 0.25mm or 0.75mm - too tight and too loose respectively so its probably better to go by 0.4mm - 0.5mm - and was able to make a male & female to close easily.
Thanks for sharing this design! This looks great for a gift box.
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