I have been collecting the parts needed to build my own 3D printer. The one I am building it a RepRap MendelMax. It extrudes PLA or ABS in think layers one after the other until it builds up the printed part. The idea’s for building geocache containers and puzzles are unlimited. Take a look at this 3D printed cryptex to have an idea what is possible.

The idea’s for different field puzzles are endless. After looking at the video what idea’s would you have for a printed item for a geocache ?