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

Guys,
A while back, someone posted some pictures of a full-size mill with a
ball screw on the Z axis. He overcame the problem by mounting two gas
shocks, one on each side, from the base to the knee. I'll see if I can
resurrect the link to those photos.

Marv Frankel
Los Angeles

----- Original Message -----
From: "tsalaff" <tacman@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, July 08, 2003 7:46 AM
Subject: [CAD_CAM_EDM_DRO] Re: Counterweighting the Z axis ?; Power off
position holding ?


> 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...>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
timg@...
> Moderator: pentam@... indigo_red@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>