This is created to be a 3d printed version of the Hanayama puzzle Cast Arrows it is a puzzle that features four arrows piercing a heart. The goal is to remove each arrow by carefully examining the heart.

The the unsolved version is printed in a way that is not the best when it comes to strength, if I give it to my kids to try and play with it they end up trying to solve by force and breaking it lol.

I recommend solving it yourself for fun then printing the solved version which is ALMOST unbreakable. Good luck and hope you like this 3d printed version.