HI
I'M TRAYING TO DECIDE WICH OF THESE, CAN I USE.
I DON'T WANT TO MUCH BACKSLASH
I DON'T WANT TO SPEND TONS OF MONEY ALSO

PLEASE ADVISE ME

I WILL BUY ALMOST EVERYTHING FROM:
WWW.MCMASTER.COM

ACME screws are more accuracte then most ball screws and cheaper. I believe that the precision ground ball screws are close in accuracy. ACME screws are not as efficient as ballscrews.

Rack & pinion is in a separate category.

For X axis of over 4000mm is rack & pinon is prefferd or ballscrews give the merits & Demerits