Quote Originally Posted by jpcnc View Post
The 2m ballscrew should be fine there isnt going to be any rapids just a steady feed, as for making handles, I have my own cnc machining business but its not worth all the hassle of making them when I can buy them pretty cheap, same goes for most of the other bits I need, unless it needs to be a specific shape.
The critical speed for that length of screw is 290 to 650rpm - depending on what bearings you use. That's 1450 to 3250mm/min assuming 5mm pitch screw. I guess 3250 is ok - why are there not going to be any rapids?

I generally go on the if I can make it cheaper I do philosophy!