You had me thinking about that, I usually use a hacksaw or dremel but this made me think of a better idea. Have a piece of wood 2 or more inches long, 1.5 or more wide. thickness wont really matter but prob 1/2" at least. 2 pieces 1/2 to 3/4 wide by 1 long by 3/4 high are screwed or bolted to the main piece at one end. 2 screws with flattened tips are screwed through the front to hold the pin/tube stock. You then saw through the pin and then just back the whole jig out. Unscrew the cut piece, remove, unscrew the other piece, move it up so the place you want to cut is at the slice in the wood, tighten the jig, saw the next piece. Hmm my explanation isnt that good.. Hope a picture helps.. I plan on trying this this weekend. I am at work, so I will post a drawing when I get home...