Spent yesterday afternoon at the Central Deborah Gold Mine in Bendigo where I saw a couple of interesting ideas I would like to experiment with one day. The first idea was hardwood bearing blocks sighted on a grinding wheel and a crank mechanism. The blocks looked to be simply drilled out the the shaft size, mounting holes drilled and split in half. An oil hole was drilled in the top half to keep the bearing lubricated. The second idea was spotted on the large battery ram where brick laid wooden blocks formed the drive wheel. Iron compression rings bolted through kept the wheel in tact but the belt ran on the wooden surface.