03-20-2015, 11:09 AM
I like the idea of a scotch yoke, but to have 9 ft of reciprocating action the slot in the bar would have to be 4 1/2 ft long. Consequently it would not fit under the bed. I think I'd be better off using the existing gear & gear rack as I do not have enough travel on my mill to cut the slot in one set-up. Any bumps etc in the finish of the side of the slot would probably turn into a rough spot in the action of the table in turn making a divot or a small rise on the surface of the part being ground.
I'm going to revisit the idea of building a power pack to run a hydraulic motor/pump.
I'll try to take pics before I go to work in 2 1/2 hours or 1:30 Central Time. Given its a big flat spot it has naturally collected various items on top so I need to move some of it at least.
I'm going to revisit the idea of building a power pack to run a hydraulic motor/pump.
I'll try to take pics before I go to work in 2 1/2 hours or 1:30 Central Time. Given its a big flat spot it has naturally collected various items on top so I need to move some of it at least.