3 or 5 Wheel Life Counter

prusaprinters

This will not work without magnets. You will need 30 5mmx1mm magnets. Make sure that the polarity of the magnets match when you glue them in. I find it best to glue one magnet to something else as the one to set all the wheels to and then make sure the shaft magnets repel that magnet. When assembling, dry fit all the parts first. Each wheel should be put on a shaft, then attach all of those to each other, then put the end pieces on. The shaft and end pieces will only fit one way. The magnets on the wheels should be close to the magnets on the shaft when assembling.