Mazzer Major Single dose hoper and bellow

thingiverse

Easily printable insert for coffee grinder Mazzer Major to replace original hopper. Presented and tested design provides multiple functions: - open hopper for single dosing - bellow to blow out residual grounds (slap the bellow with your palm to cover the opening) - anti-popcorning cover (shape of the hopper doesn't allow the beans to jump in the direction from the burrs) - slow-feeding device (just fill beans to the hopper, they start falling through slowly once the burr starts spinning, that ensures all the beas fall into already rotating burrs and that all have enough space to leave the burrs) Thus the device streamlines the workflow as no cover is neccessarry. The agitating cap for the central screw is shaped for hexagonal head, in case you have internal slot head, the cap needs to be modified. To quicken the feeding, increase number of feeding openings, it is not recommended to make them any larger as then the anti-popcorning function declines. Printed and tested with PLA for the hopper and TPE (88SHA) for the bellow. Printable without supports with the exception of the agitating cap.