I wanted to design a piggy bank that my 4 year old could use but wouldn't immediately be able to open and dump onto the floor. I figure by the time she is old enough to solve she will be mature enough to have access to the contents without supervision.
moderately difficult puzzle.
If your settings are dialed in you won't need any supports. Can be scaled to a larger size however keep in mind the slot will expand too. I will be adding a scaled plate soon where the coin slot is adjusted.
Everything was designed in Fusion 360 however I used this site to automate the maze portion.