This fits in the “old news” category. Washing parts after they’ve been sanded to remove dust and oil has been a perpetual problem for us. Washing them by hand was labor intensive, and we could not find a suitable parts washer. So, about three years ago, we designed and built this computer controlled washer, or simpleton robot. It washes and rinses the parts with a high pressure like in a car wash while tumbling the parts slowly like in a clothes washer; drys them with heated air like in a dryer; and dumps the parts in a waiting tub like a coffee roaster. The parts are immediately ready for paint and finishing. The operation is so automated that after loading the machine, the operator only needs to press a single button to start the cycle.
Washer with front panel removed and controller on the right.