Re: [CAD_CAM_EDM_DRO] Re: Counterweighting the Z axis ?; Power off position holding ?

Glad to hear I am not the only one.

The problem with springs is that their force varies with where the head
is. Maybe they could be adjusted for zero force in the home position.
That wouldn't help for an EStop though.

A regulated air cylinder could give a constant force with any position,
but I'm worried the air dynamics would mess up the head motion.

So far the best solution seems to be to counter weight it and/or apply a
bit of drag to the ballscrew drive.

Kim

On Tue, 2003-07-08 at 08:46, tsalaff wrote:
> Kim,
>
> I'm dealing with the same problem right now although my Z axis is only
> 40 lb.. Going to try making brackets to anchor support springs. Will
> report on how these work.
>
> > motor the milling head will slide down the column as soon as power is
> > removed from the servo.
> >
>
> > Kim Lux <lux@d...>
>
>
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