Quote Originally Posted by Tweaky View Post
It seems that we have the wrong spindle for CNC, are we stuck with it? The R8 is presumably not any different in operation. I guess the proper CNC machines have much larger quills, allowing the larger tapers to be used, is the lower bearing the limiting factor?
You can get a Warco Major with an R8, it's an option. Now't wrong with MT3 though, apart from needing draw bars in 3/8", 1/2" and M12.

Production CNC requires an auto-tool changer so they prefer shorter fatter tapers.