Re: [CAD_CAM_EDM_DRO] Re: Newbie Questions

The caveat on using a ballscrew feed in a manual mill is
because the ballscrew provides virtually no friction,
compared to an acme screw feed. You'd want a small prony
brake, or some kind of damper to keep the table from moving
when you took your hand off the crank. Best bet is to
couple the ballscrews to either a servo or stepper (in that
order of preference) as they would effectively hold
position at the end of each move, assuming that they are
controlled by a CNC system.

RayHex

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> From: C.S. Mo <cs@...>
>
> To bring back a question that has been recently discussed

with Ballscrews

> but not Acme rod..
>
> I have roughly .015" backlash in my X and Y travels. I've

heard talk

> about "double-nutting" in order to reduce backlash. Has

anyone done this

> to one of the little Mill/Drills? Any advice on how to go

about doing it?

> I've considered going to ball screws but my

understanding is that ball

> screws make it so that the machine can not be used for

manual milling -

> is that correct?