Can anyone tell me if there is a website that gives STANDARD ballscrew sizes and mounting flange dimensions?(if there is such a thing).

My idea is to use acme lead screws in my mill and lathe project and custom make the nuts identical to the ball nut so the ease of upgrading to ballscrews in the future(when i am financially better off) will be a breeze.

Can anyone help or give me an insight to my idea?

http://www.nookindustries.com

just tried nook industries, their site is down or something?
any ither suggestions?

http://www.nookind.com/

Both work for me.

this site is a goldmine! thanx alot!