Tumbler 5 litres

thingiverse

This is my tumbler built to clean old metal objects or eliminate machining edges. Use a plastic container of 167.5 cm in diameter and 33 cm in height, purchased in a store. The motor is a high torque 100 rpm (not the one in the images that was for testing but dimensions are similar) and has no problem spinning 3-4 kg of coarse-grained silicon carbide. I used many aluminum parts but it is possible to make the same in 3D printing. A total of 11 bearings are needed (8 bearings 10x15x4 and 3 bearings 10x16x5). You also need 4mm screws for securing thrust bearing supports, pulleys and gears, for the motor you need 3mm screws.The big gear on the bottle is fixed with 4 small screws. It is very useful even if need many time work to see results.