Does anybody on here know the Pitch and pressure angle of the change gears for the 1127? I have been wanting to learn to make basic spur gears. I don't need any new change gears, but I thought it would be a fun project to try to replicate the change gears. I would like to buy a set of gear cutters as opposed to trying to grind a bit free hand. But I am sure I will still grind a bit just to say I did.