Re: replacing feed screw with a hydraulic cylinder

True, if you buy them new hydraulic power packs are quite expensive, but
there is a lot of surplus/used stuff around. You generally need to replace
the hoses out of common sense, however.

Speaking of....I am currently in the process of CNC'ing a Moog Hydra-point
milling machine. This has hydraulic control like of which you speak. When
it worked, it was great. When there were "issues", well...'nuff said. You
can see what I have at:

http://home.cogeco.ca/~grose

I haven't updated the page in a while, but I will be doing so soon.

If anybody wants to buy any of the hydraulic parts (including the fiendishly
clever air logic stuff), contact me offlist and make an offer.

Gary

> Date: Tue, 5 Nov 2002 14:51:18 -0500
> From: "alex" <telecomt@...>
> Subject: Re: replacing feed screw with a hydraulic cylinder
>
> Just want to address a cost issue: small power pack from
> Princess - Auto -approx. $700 Canadian - $450 US.
> Alex
> ----- Original Message -----
> From: Bill Vance <ccq@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Tuesday, November 05, 2002 2:49 PM
> Subject: Re: [CAD_CAM_EDM_DRO] replacing feed screw with a hydraulic
> cylinder
>
>
> > On Tue Nov 5 09:53:55 2002, Jon Elson,
> <elson@...> wrote:
> >
> > >al5502 wrote:
> > >
> > >>Did somebody try to get rid of the feed screw all together
> > >>and replace it with a hydraulic cylinder?
> > >>At the first glance it may present several advantages:
> > >>no backlash, big force at low cost.

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