CAD CAM EDM DRO - Yahoo Group Archive

Re: Z axis drive

Posted by spc_aux
on 2006-01-05 15:53:23 UTC
--- In CAD_CAM_EDM_DRO@yahoogroups.com, Anders Wallin
<anders.wallin@h...> wrote:
>
> >
> >
> >Gerry,
> >Nice conversion! Do you feel the counter weight system was
required?
> >Just curious as I have an RF45 clone comming soon and will be
doing a
> >CNC conversion.
> >Thanks!
> >Bob
> >
> >
> In my experience, when moving the whole milling head, it's
definitely
> required (unless ofcourse you use a very powerful Z-motor).
> The Z-axis is now the most easily moving axis on my machine.
> The counterweight does add to the intertia of the system, so max
> acceleration is basically divided by two, but otherwise there are
no
> problems. most commercial vmc's that I've seen construction
pictures of
> use the same solution.
> See http://www.anderswallin.net/2004/11/cnc-milling-of-mdf-
plug/
> for my BF20 size mill conversion.
>
> AW
>

All the commercial VMCs I've worked on use hydraulic or pneumatic
counterbalencing on the Z axis, usually hydraulic and with the
cylinder in a 2:1 compound arangment with chains like on a forklift.
Reduces the inertia problem since the counterballance is some chain
and a piston as opposed to a giant weight.

Pete C.

Discussion Thread

Brian Fairey 1999-08-01 04:17:17 UTC Z axis drive Dan Falck 1999-08-01 05:32:47 UTC Re: Z axis drive Ron Ginger 2006-01-05 05:02:28 UTC Z axis drive Les Newell 2006-01-05 05:20:59 UTC Re: [CAD_CAM_EDM_DRO] Z axis drive Ken Strauss 2006-01-05 05:51:47 UTC RE: [CAD_CAM_EDM_DRO] Z axis drive kmslinda 2006-01-05 08:00:39 UTC Re: Z axis drive Anders Wallin 2006-01-05 08:22:38 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive Jon Elson 2006-01-05 09:45:48 UTC Re: [CAD_CAM_EDM_DRO] Z axis drive Art Eckstein 2006-01-05 10:14:49 UTC Re: [CAD_CAM_EDM_DRO] Z axis drive jesse Brennan 2006-01-05 11:16:09 UTC Re: [CAD_CAM_EDM_DRO] Z axis drive n1ych 2006-01-05 13:44:17 UTC Re: Z axis drive Anders Wallin 2006-01-05 13:55:33 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive kmslinda 2006-01-05 14:24:59 UTC Re: Z axis drive kmslinda 2006-01-05 14:30:26 UTC Re: Z axis drive spc_aux 2006-01-05 15:53:23 UTC Re: Z axis drive JCullins 2006-01-05 17:51:04 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive Ron Ginger 2006-01-05 18:35:45 UTC Re: Z axis drive skykotech 2006-01-05 20:44:06 UTC Re: Z axis drive gary 2006-01-05 21:37:16 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive spc_aux 2006-01-06 05:50:46 UTC Re: Z axis drive spc_aux 2006-01-06 05:55:58 UTC Re: Z axis drive skykotech 2006-01-06 08:02:41 UTC Re: Z axis drive gary 2006-01-06 08:58:52 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive R Rogers 2006-01-06 10:03:44 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive spc_aux 2006-01-06 10:47:42 UTC Re: Z axis drive George Taylor, IV 2006-01-06 11:17:05 UTC RE: [CAD_CAM_EDM_DRO] Re: Z axis drive R Rogers 2006-01-06 11:57:05 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive Dan Mauch 2006-01-06 12:05:25 UTC Re: [CAD_CAM_EDM_DRO] Re: Z axis drive spc_aux 2006-01-06 15:36:34 UTC Re: Z axis drive spc_aux 2006-01-06 15:47:47 UTC Re: Z axis drive wthomas@g... 2006-01-07 21:35:54 UTC W.E.T.[CAD_CAM_EDM_DRO] Re: Z axis drive gary 2006-01-08 13:54:43 UTC Re: W.E.T.[CAD_CAM_EDM_DRO] Re: Z axis drive longassscreenname 2006-01-14 13:01:17 UTC Re: Z axis drive