Heart Puzzle Box "I love you"

This is the version of a Heart Puzzle Box with 0.4 mm gaps. The version with 0.25 mm gaps is available at https://cults3d.com/en/3d-model/various/heart-puzzle-box-to-the-moon-and-back.

This is two-piece box for jewelry and small accessories shaped as a heart. It includes a 19-pcs puzzle that assembles into "I love you" text in the frame embossed in the lid part.

The size of the case allows to put inside various items that you'd like to gift your beloved one, and you can scale it up if necessary - just keep in mind that original gaps are 0.4 mm, and up-scaling it more than twice would make the puzzle connections a bit loose.

Or you can use it as a planter for a cactus! :)

And more, it includes an additional STL for a puzzle base if you want to separate the puzzle and the box, or don't want the box functionality.

The holes in the grey lid were added in a slicer when I experimented with hollowing. the model itself doesn't have them, you can ignore them.

This is the version with 0.4 mm gaps to be printed with 0,2 mm nozzle, or you can upscale it and use a bigger nozzle. Or downscale and print on SLA printer.
To find an appropriate scale, print 2-3 connecting puzzle elements and check if they connect not too loose and not too tight. Repeat in a different scale if necessary: enlarge if too tight, or make it smaller if too loose. Once you like the result, this would be your optimal scale.