Re: [CAD_CAM_EDM_DRO] ACME or Ball?

In a message dated 9/1/2003 6:49:59 AM Central Standard Time,
ghidera2000@... writes:

>
> Think an ACME screw setup would do ok at this or are ball a must for this
> level of precision?

If you use "Precision rolled Stub-ACME" with PRELOADED Turcite nuts by Ball
Screws & Actuators, you can "get by" without ball-screws. There are advantages
and disadvantages to both kinds.

BSA also supply many sizes of ball-screws, but it requires much experience
working with those for success, as dust is attracted to the balls in a ball-nut
more strongly than Neodymium magnetics! These must also be "double-nut
preloaded", and setting for minimum drag and "zero" backlash is very, very touchy,
and REQUIRES that GROUND precision screws be used. Costly! The previous
paragraph is a wise choice for non-optical purposes!






[Non-text portions of this message have been removed]