I think this is the largest part I’ve attempt on my Prusa Mendel. 7″ drive pulley for my welder, will be investment cast in aluminum.

I think this is the largest part I've attempt on my Prusa Mendel. 7" drive pulley for my welder, will be investment cast in aluminum.

I think this is the largest part I’ve attempt on my Prusa Mendel. 7″ drive pulley for my welder, will be investment cast in aluminum.