Report Motorless pugmill in Equipment Use and Repair Posted Sunday at 10:50 PM It's all about scale, isn't it? I would question whether a more efficient use of human power could be had than basic wedging. If you scale it down to 10lbs +\- , ok. If you scale it up to my PP30 with 40lb output, good luck. Various oriental potters use foot wedging. I know they have water driven machines etc for grinding, but I think not wedging. Always look to history.