Cryptex - 4 digit - 12 position wheels.

myminifactory

Simple 4-Wheel Cryptex. Each wheel has 12 positions that can be adjusted by positioning the internal notch in front of the desired digit. There are two versions of the external wheel. Four internal wheels, an external wheel, and a middle wafer must be printed. One top body, one bottom body, and a top wafer need to be printed. Some manual rework using sandpaper may be required.