CAD CAM EDM DRO - Yahoo Group Archive

Re: Re: replacing feed screw with a hydraulic cylinder

on 2002-12-15 02:47:22 UTC
Ray, please do elaborate. I will have the machine here in a couple
days and would like to learn as much about it as I can. For
instance, since the hydraulic system is already in place, what would
it take to put linear encoders on the thing and replace the air
logic with a PC?

Jim

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Ray Henry <rehenry@u...>
wrote:
>
> Hi Marv
>
> I was thinking that the title of this thread was backwards because
a Moog
> Hydrapoint like Jim wants to convert uses hydraulic cylinders for
axis
> movement. It seemed to me that Jim was wanting to replace these
with
> ballscrews.
>
> The stock position control of the hydraulic ram was not based on
fluid
> volume. Ram position was based on a set of air holes in a plate
that
> slid along with the ram. You could think of the air part as an
absolute
> linear encoder that used air instead of electrical impulses. If
that's
> not confusing enough, I could elaborate.<g>
>
> Ray
>
>
>
> > Subject: Re: Re: Re: replacing feed screw with a hydraulic
cylinder
> >
> > Guys,
> >        I've been following this thread, and although I've
never done
> > it, I wonder if the coefficient of expansion of the hydraulic
fluid,
> > would cause some accuracy problems? On a cold day, it would cut
> > differently than on a warm day, and would you have to reset your
Z axis
> > every time the temperature changed?
> >
> > Marv Frankel
> > Los Angeles

Discussion Thread

al5502 2002-11-05 06:30:34 UTC replacing feed screw with a hydraulic cylinder Jon Elson 2002-11-05 09:52:32 UTC Re: [CAD_CAM_EDM_DRO] replacing feed screw with a hydraulic cylinder Bill Vance 2002-11-05 11:54:45 UTC Re: [CAD_CAM_EDM_DRO] replacing feed screw with a hydraulic cylinder alex 2002-11-05 12:10:05 UTC Re: [CAD_CAM_EDM_DRO] replacing feed screw with a hydraulic cylinder b564htf 2002-11-05 17:04:39 UTC Re: replacing feed screw with a hydraulic cylinder JanRwl@A... 2002-11-05 20:29:36 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder Bill Vance 2002-11-05 21:18:25 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder Jon Elson 2002-11-05 21:56:12 UTC Re: [CAD_CAM_EDM_DRO] replacing feed screw with a hydraulic cylinder Jon Elson 2002-11-05 22:35:01 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder wanliker@a... 2002-11-06 00:52:53 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder Rose, Gary 2002-11-06 05:28:09 UTC Re: replacing feed screw with a hydraulic cylinder bjammin@i... 2002-11-06 05:53:31 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder dakota8833 2002-11-06 06:18:43 UTC Re: replacing feed screw with a hydraulic cylinder alex 2002-11-06 10:22:52 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder Brian 2002-11-06 14:11:08 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-06 14:28:57 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-06 15:32:08 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-06 16:03:00 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-07 07:01:35 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-07 07:12:24 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder Vajk Fekete 2002-11-07 07:32:34 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-07 09:45:28 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder bjammin@i... 2002-11-07 18:19:30 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-08 07:11:32 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder jim davies 2002-11-11 16:10:02 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder alex 2002-11-12 06:52:57 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 2002-11-29 17:43:03 UTC Re: replacing feed screw with a hydraulic cylinder Ray Henry 2002-11-30 10:35:05 UTC Re: Re: replacing feed screw with a hydraulic cylinder Marv Frankel 2002-11-30 15:05:49 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: replacing feed screw with a hydraulic cylinder Jon Elson 2002-11-30 16:27:58 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: replacing feed screw with a hydraulic cylinder Ray Henry 2002-12-01 07:25:29 UTC Re: Re: Re: Re: replacing feed screw with a hydraulic cylinder Sven Peter 2002-12-01 11:03:39 UTC Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 2002-12-01 13:56:49 UTC Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 2002-12-01 14:06:07 UTC Re: replacing feed screw with a hydraulic cylinder Bill Vance 2002-12-01 17:14:21 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder Sven Peter 2002-12-02 04:58:34 UTC Re: replacing feed screw with a hydraulic cylinder Ray Henry 2002-12-02 11:05:11 UTC Re: Re: replacing feed screw with a hydraulic cylinder Jon Elson 2002-12-02 21:37:13 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: replacing feed screw with a hydraulic cylinder Ray Henry 2002-12-03 06:22:09 UTC Re: Re: Re: Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 2002-12-03 20:30:12 UTC Re: Re: replacing feed screw with a hydraulic cylinder Jon Elson 2002-12-04 10:01:30 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 2002-12-05 18:15:35 UTC Re: replacing feed screw with a hydraulic cylinder Ray Henry 2002-12-06 07:32:46 UTC Re: Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 <jblackwood5@i... 2002-12-14 21:05:01 UTC Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 <jblackwood5@i... 2002-12-15 02:47:22 UTC Re: Re: replacing feed screw with a hydraulic cylinder Mike Gann 2002-12-15 12:05:15 UTC Re: [CAD_CAM_EDM_DRO] Re: replacing feed screw with a hydraulic cylinder cisco_bits <iaing@n... 2002-12-15 12:55:08 UTC Re: replacing feed screw with a hydraulic cylinder Ray Henry 2002-12-15 14:40:57 UTC Re: Re: Re: replacing feed screw with a hydraulic cylinder Jon Elson 2002-12-16 01:29:43 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: replacing feed screw with a hydraulic cylinder blown_mgb_v8 <jblackwood5@i... 2002-12-16 20:17:33 UTC Re: replacing feed screw with a hydraulic cylinder Scott A. Stephens 2003-01-06 13:48:03 UTC CNC Retrofit for the Taig Mill