re: Box spline sled

The piece of end grain plywood that sticks out 2" on the 45. I will make a couple of “U” clamps to fit around the 3/4" and put the knob thru the top of the u with blind nuts on the back of the u. It will be like a big C clamp sort of, they will be able to slide the whole width and compress the piece holding it in place. The first pic shows the wood that the “U” will fit onto.