I started in by making what I thought was a simple little part for the English wheel, the anvil holder. It is simple but it took me a good part of the day with setups. I should be building 10 of these things at a time!
After welding it went back in the mill to remove a few thou from each flange so that the anvils are a push fit, no side to side slack. The inner bearing races on the anvils protrude about 10 thou out from the anvil ends, so they are the locator for the anvil. The circlular groove in the side flange is there so the outer bearing race can rotate without dragging on the anvil holder.
I cut slots into the bottom plate for the side flanges to fit into. The bottom side got machined away to leave a key. The tool holder will get matching sized keyways cut into it in a 90 degree cross, that way the anvil holder will be indexed to turn an exact 90 as will the upper yoke. This way the wheel & anvils can run crosswise of the Frame (normal setup) or turned parallel to the frame to allow more shapes to fit into the Ewheel.
Glen