Positive displacement supercharger/roots blower

This is a remix of "Roots blower" by mattmoses. This blower is designed to be usable as an actual component rather than a model. It is designed to fit a 775 frame DC motor, and it will need 3 608zz bearings for the ends of the shafts. The intake/output is about 3/4". This can be used to remotely cool a 3d printer via a tube, however it will be noisy.