Hi gotfdirtball. I see you have been doing some homework. Nice first post and good parts selection!
Ballscrews are usually 5 TPI. Depending on how much more than that your screws are, you may already be geared 2 or 3 to 1 by comparison. The 387s should be more than enough to direct drive an 8 inch table.
You may have to lathe the ends of the screws to accept couplings or pulleys though.
CR. |