Movable 3D Piggy Banks: STL Models with Moving Parts

«Movable 3D Piggy Banks: STL Models with Moving Parts»

The largest group is the classic bank: a hollow body with a slot on top and often a removable plug underneath. A second group adds motion, such as a tongue that flips when a coin drops, a lever, or parts printed in place so the piece leaves the plate already moving. Themed banks borrow shapes from characters, games or vehicles, while vault-style designs imitate small safes and cash boxes with a door and a lock detail.

Before printing, open the model page and read what the author lists: overall size and scale, wall thickness, the number of separate parts and how they join, and whether supports are needed for overhangs. Compare the material and settings the author used, since a thin hinge or a moving joint behaves differently in PLA and in PETG. Photos of real prints show how the mechanism looks after assembly and where the clearances sit.

If the results feel too narrow, try other wordings: coin bank, money box, savings box, cash box, or pig figure. Related searches include print-in-place mechanisms, articulated toys, and desk organizers with a slot. Pairing a subject word with a mechanism word, such as a moving tongue or a hinged lid, usually narrows the list faster than one broad term.