Here we are lining up the variable radius rollers. All these tools have to be held in square in place in all 3 dimensions...it can get quite tedious. If they are not lined up, the bending machine is so powerful it will simply crush the tube at worst, and leave a nasty line in it at best. Nasty lines are horrible stress raisers.
Notice the collet I made last week in place and doing its job of holding the tube in place. It also orients the tube if we need it to.
