Guys with 5 axis EDM or lazers can cut them faster than you can ever imagine using tubing and their CNC operated tool path - if you can draw the cam ramp, they can wrap and burn them.
If you don't know how to coordinate the axis rotation versus the spindle motion, you're as bad off trying to machine these as machining an automotive cam.
BTW, DZASTR, it takes more than a roller shaped cutter to truly and properly duplicate the actual and intended lift curve with an automotive and/or clutch cam. You need some rather sophisticated cutter paths to properly get the OD edges of the cutter to trace the exact path that you're trying to generate -
REASON: the true tangency point of the cutter is constantly moving and you have to account for the move (both axially and radially) as you rotate the axis and/or oscillate the cutter axis up/down/in/out. Been there, done that in creating our cam master cutting program - suffice it to say, it ain't easy to do. |