Working combination lock

thingiverse

This fully functional combination lock is ready for use without any need for glue. The combination can be found by starting with the number closest to the shackle and using the digits 2-7-1-8. To assemble, simply place each wheel in its designated slot, then pass the shackle through the holes in the wheels. Finally, snap the small cap into place at the back of the lock to prevent the shackle from coming loose when you unlock it. By looking across from the small square on each wheel, you can easily determine which digit belongs in each slot.