Mini drum mixer

thingiverse

A mini drum mixer for powders or suspensions; it can fit 200 to 750 mL bottles (about: see photos). Rotating speed depends on DC 12V motor to be coupled (I used a 200 rpm DC 12 V fitted with a Amazon/PIXNOR 6V-28V 3A 80W DC Motor Speed Controller; see photos). For a better grip the wheels and other parts are fitted with a 1 mm-thick cuttable adhesive pad. Some small magnets (round 6x2 mm) are used for a better assembly but not strictly necessary