[coolman]

I am interested in putting together a Ballscrew wth a Fixed-Screw method. This is when the screws are fixed and do not turn while the nut will rotate. This method allows me to use 5/8" diameter at 48" long ballscrews without worrying about whiplash. Thicker ballscrews are too expensive. My question is how do I make a Fixed-Screw? Any web links, pictures, etc?

[2muchstuff]

Acording to Nook Industries and their technical data, you can rotate a 5/8" diameter .2" lead ballscrew on 48" bearing supported ends at 200" per minute. If you want a fixed screw, you can run at 300" per minute. Using a 5/8" diameter .5" lead ballscrew, 48" bearing ends, you can run at 500" per minute. If fixed, then 600" per minute are possible. How fast do you want to go.

Nook does make an adjustable preload ballnut and a flange to make things easier to fabricate a rotating nut assembly. http://nookindustries.com