Safe | Money Bank | Lock | Piggy Bank
Safe Piggy Bank is a functional combination-lock safe designed to store coins, cash, and small valuables. The lock is completely mechanical, reliable, and allows you to set your own custom code, making it both a fun project and a practical storage solution for everyday use 💰🔒
Size: Height=153 mm; Width=97 mm; Depth=88 mm
Working numeric combination lock - 3 dials, each with 6 numbers (Total of 216 possible code combinations)
Coin slot on top for easy deposits 🪙
Removable internal coin tray for organizing and storing coins
A small latch engages with the grooves in each dial while rotating, ensuring precise groove alignment so the lock can always be opened correctly.
Easy assembly - No glue required. Fully 3D printable 🔧
Assembly uses only screws 🔩
This is still a plastic safe 😄 Please don’t store your entire fortune inside ⚠
Included in this post:
STL files
STEP file for CAD editing/customization
Pre-sliced .3mf print profile optimized for Bambu Lab printers
Please do not share the STL or any other files from this model—let’s keep it exclusive for members.
Comments (4)
The numeric tumblers (numbers) for the lock are not in the .3mf
Fixed :) Thanks!
Hey Mathew, cool design but there are no tumblers
I'm not sure I understand what you mean 😄. The numeric lock is fully functional, you can set your own code, and it does have internal locking elements that interact with the grooves on the dials.