CAD CAM EDM DRO - Yahoo Group Archive

Re: motor sizing vertical slide EDM

Posted by tomp-tag
on 2006-05-12 14:52:24 UTC
Graham,

>Message 8
> From: "Graham Stabler" eexgs@...
> Date: Thu May 11, 2006 9:34am(PDT)
>Subject: Re: motor sizing vertical slide EDM
>
I keep picturing the cables to the counterbalance going limp then taut
but the weight never moving ;-)
I think I'mpicturing the inertia of the balance being larger than the response
I'm looking for.
>Would it be stupid to say the word counterbalance?
>
Peter Deckel made a beauty of a machine in the 70's (?) that had a
dual Z design. ( like Z & W , colinear ). Ran nice, but didnt sell.
Actually I've been thinking the same,
While looking into orbiting head, I though of adding a bit-o-Z to it.
Just a couple mm, so the main axis never moved from the bottom of the cut.
Let WUV axis orbit about that position byt 1mm.
1mm oughta be enuf for all but honking great 300+ ampere cuts.
Subject to extreme heating tho...
>It gets me wondering about EDM machine construction in general, you
>end up with a lot of mass to keep things stiff and steady but then you
>have to move that mass preferably with a fast response even if over
>VERY short distances. Wouldn't it be cool if you could mount the tool
>on some sort of piezoelectric stack or similar and let that do the
>fine high response adjustment and then let a fairly lowly servo system
>do the slower "drift" of the tool. Or something like a stiff flexure
>capable of only very small motions in z actuated by a small fast servo.
>
well, not a shetland, but a healthy Cairn terrier ;-)
( no exaggeration, 12x24x12 typical ) buried to the platen.
>Then again if your tool is the size of a small horse that's not going
>to work anyway.
>
>Graham
Thanks, tomp

Discussion Thread

tomp-tag 2006-05-10 11:11:08 UTC motor sizing vertical slide EDM Graham Stabler 2006-05-10 15:02:43 UTC Re: motor sizing vertical slide EDM Mariss Freimanis 2006-05-10 16:23:36 UTC Re: motor sizing vertical slide EDM Marcus 2006-05-10 19:53:52 UTC Re: [CAD_CAM_EDM_DRO] motor sizing vertical slide EDM tomp-tag 2006-05-11 06:51:51 UTC RE: motor sizing vertical slide EDM tomp-tag 2006-05-11 07:58:55 UTC Re: motor sizing vertical slide EDM Marcus 2006-05-11 08:09:42 UTC Re: [CAD_CAM_EDM_DRO] RE: motor sizing vertical slide EDM Mariss Freimanis 2006-05-11 08:54:51 UTC Re: motor sizing vertical slide EDM Graham Stabler 2006-05-11 09:34:00 UTC Re: motor sizing vertical slide EDM tomp-tag 2006-05-12 14:05:31 UTC Re: motor sizing vertical slide EDM tomp-tag 2006-05-12 14:41:05 UTC Re: motor sizing vertical slide EDM tomp-tag 2006-05-12 14:43:19 UTC Re: motor sizing vertical slide EDM tomp-tag 2006-05-12 14:46:08 UTC Re: motor sizing vertical slide EDM tomp-tag 2006-05-12 14:46:27 UTC Re: motor sizing vertical slide EDM tomp-tag 2006-05-12 14:52:24 UTC Re: motor sizing vertical slide EDM Graham Stabler 2006-05-12 15:22:22 UTC Re: motor sizing vertical slide EDM Mariss Freimanis 2006-05-12 18:06:56 UTC Re: motor sizing vertical slide EDM Jon Elson 2006-05-13 09:27:37 UTC Re: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM Graham Stabler 2006-05-13 12:59:52 UTC Re: motor sizing vertical slide EDM Marcus 2006-05-13 19:27:50 UTC Re: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM wthomas@g... 2006-05-13 20:21:17 UTC W.E.T.??: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM John Dammeyer 2006-05-13 23:00:01 UTC Bender question wthomas@g... 2006-05-14 00:10:27 UTC W.E.T.Re: [CAD_CAM_EDM_DRO] Bender DRO question some OT ballendo 2006-05-14 04:18:30 UTC Re: Bender question (long reply) Wayne Weedon 2006-05-14 05:34:23 UTC Re: W.E.T.??: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM turbulatordude 2006-05-14 06:17:23 UTC Re: Bender question (long reply) John Dammeyer 2006-05-14 10:39:39 UTC RE: [CAD_CAM_EDM_DRO] Re: Bender question (long reply) Marcus 2006-05-14 12:39:51 UTC Re: W.E.T.??: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM ballendo 2006-05-14 14:00:33 UTC No add photos button?!? wasRe: Bender question (long reply) Graham Stabler 2006-05-14 14:06:44 UTC No add photos button?!? wasRe: Bender question (long reply) ballendo 2006-05-14 14:16:20 UTC 3-in-1 back gauge photos at DIY-CNC was Re: Bender question (long reply) ballendo 2006-05-14 14:18:12 UTC Re: Bender question (long reply) John Dammeyer 2006-05-14 14:54:29 UTC RE: [CAD_CAM_EDM_DRO] Re: Bender question (long reply) ballendo 2006-05-14 14:58:49 UTC OT thank you re No add photos button?!? wasRe: Bender question (long reply) Jon Elson 2006-05-14 15:02:32 UTC Re: W.E.T.??: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM ballendo 2006-05-14 15:22:20 UTC Re: Bender question (long reply) ballendo 2006-05-14 15:33:56 UTC Re: Bender question (long reply) ballendo 2006-05-14 15:38:28 UTC ELS? was Re: Bender question ballendo 2006-05-14 15:45:06 UTC W.E.T.??: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM wthomas@g... 2006-05-14 17:14:45 UTC Re:W.E.T. [CAD_CAM_EDM_DRO] Re: Bender question (long reply) John Dammeyer 2006-05-14 19:59:30 UTC RE: [CAD_CAM_EDM_DRO] ELS? (long answer) BobWarfield 2006-05-15 15:47:52 UTC Re: Bender question ballendo 2006-05-15 16:52:29 UTC Re: Bender question wthomas@g... 2006-05-15 22:22:35 UTC W.E.T. [CAD_CAM_EDM_DRO] Re: Bender question tomp-tag 2006-05-16 14:48:18 UTC Re: motor sizing vertical slide EDM