CAD CAM EDM DRO - Yahoo Group Archive

Re: RE: DRO

Posted by Dan Mauch
on 2000-02-11 07:02:34 UTC
I added a third dro encoder to my lathe. I connected it to the tailstock
quill so that when I am drilling to a specific depth I can control it very
easily.
Dan
-----Original Message-----
From: Rudy du Preez <Rudi@...>
To: CAD_CAM_EDM_DRO@onelist.com <CAD_CAM_EDM_DRO@onelist.com>
Date: Thursday, February 10, 2000 9:59 PM
Subject: [CAD_CAM_EDM_DRO] RE: DRO


>From: "Rudy du Preez" <Rudi@...>
>
>Thomas,Art,and Johan,
>
>Many thanks for putting me on the trail of how to build my own DRO- I am
exploring and finding lots of info with your advice. As soon as I have a
more complete perspective I will start asking more help.
>
>Rudy
>
>>>> thomas.b.smith1@... 02/10/00 08:08PM >>>
>From: "SMITH, THOMAS B. (JSC-DX)" <thomas.b.smith1@...>
>
>Rudy/Art,
>
>I have also just nearly finished my installation of a DRO based on Steve
>Lindsay's program. It works like a champ on my 486/33 laptop (first tried
>it on a 386 laptop, but the printer port wasn't up to speed). I paid $150
>for 3 linear encoders from usdigital.com, and will contribute some $$ to
>Steve for his nice program. So for less than $200, an old laptop, and a
>little creative installation, I have a DRO. All I have to do is add two
>more encoders for my lathe and I can switch back and forth between the two
>machines with the same laptop.
>
>Here are some tips
>1. Use shielded wire, especially if you have power table feeds (it may be
>overkill, but I individually shielded each conductor)
>2. If you use linear encoders, shield them from chips, etc. I installed
one
>of them under the x table, which required removal of the table, but it is
>completely hidden from above. Also, I didn't want to encase them because
of
>the time and space it would take up.
>3. I think the z axis should definitely use a rotary encoder because of
the
>flying chips and difficulty in shielding from same.
>
>
>Art,
>Yes, please send me any info you have on your DRO project. While the
linear
>encoders worked well, they are difficult to install and keep chips away
>from. I'd like to go with rotary for my lathe.
>
>Here's a question maybe someone can help with: When a DRO is installed on
a
>small lathe, how many axes are used? I planned to only use two, since my
>small 9" swing would make it impractical to fit an encoder on the compound
>rest. The problem is the feed is so coarse for the carriage, how does one
>get fine control, (and at the same time, account for compound travel)?
>
>Tom
>
>>>>>>>>.............
>
>Message: 20
> Date: Wed, 09 Feb 2000 17:34:52 -0500
> From: "A. G. Eckstein" <axtein@...>
>Subject: Re: DRO
>
>Rudy,
>With the help of this list, I am in the process of building a 3 axis DRO
>for my mill/drill.
>
>At Goldmine, http://www.goldmine-elec.com/, I found some 24 volt motors
>with 1000 line encoders attached ($3.95 each). Be carefull of their specs
>as the shafts are 5mm not 3/16" as advertised. Also found some 5mm ID
>bearings ($1.49 each)at the same place. Then on the metalworking
>newsgroup, found a notice that Steve Lindsey was making his DRO software
>available for the download and it works quite well on an old 486 DX 100
>that I had laying around. While it should work in a DOS window, I find that
>it does not on this machine. Then with a few pieces of Al that I have
>laying around, I have had an enjoyable experience making chips on my Mill.
>
>The biggest difference between what I have seen in the metalworking drop
>box (and in the material with Steve's program) is that instead of using a
>single line to rotate the encoder, I put the encoder in a block on one end
>of the table and then have another axle in a block on the other end and
>make a loop out of the wire with it fastened on one side in the center of
>the table.
>
>If you need additional details, please let me know, and will send something
>to you off list as I have some drawings in cad. They are always evolving as
>I find ways (in my own mind) to improve the workings. At this point, I have
>two axis up and working and the resolution is 1.8 tenths per line on the
>encoder. Have a couple of ideas and may(?) be able to get that down to .1
>tenth with very little work. Hope to do that this weekend when I finish the
>blocks for the Z axis and hope to give it a try.
>
>
>Art
>
>
> At 10:52 AM 02/09/2000 +0200, you wrote:
>>From: "Rudy du Preez" <Rudi@...>
>
>
>>Hello,
>>
>>I have just joined the list - therefore not up do date.
>>
>>My interest is for a start DRO for my milling machines (DECKEL FP1 and
>ACIERA FP1) and lathe (Hardinge HLV). I have some experinece in electronics
>and computers for hobbies (automatic battery chargers for NC batteries,
>dyno's for small DC motors, speed measurement, etc.).
>>
>>My hope is to get involved in building my own DRO systems - I hope with
>your help!
>>
>>Anybody would like to give me some hints for circuits, hardware, software,
>etc.
>>
>>Thanks!
>>
>>Rudy du Preez
>>
>
>A. G. Eckstein
>
>axtein@...
>
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>
>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
discussion of shop built systems in the above catagories.
>To Unsubscribe, read archives, change to or from digest.
>Go to: http://www.onelist.com/isregistered.cgi
>Log on, and you will go to Member Center, and you can make changes there.
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Discussion Thread

paul@x... 1999-05-17 07:09:09 UTC Re: DRO Jon Elson 1999-05-17 22:30:45 UTC Re: DRO PTENGIN@x... 1999-07-21 16:14:26 UTC Re: DRO Laverne Karras 1999-07-22 06:49:59 UTC Re: DRO Russ Kepler 1999-07-22 07:14:55 UTC Re: DRO Randolph Lee 1999-07-22 08:25:20 UTC Re: DRO Rudy du Preez 2000-02-09 00:52:27 UTC DRO smcdonal 2000-02-09 03:56:02 UTC Re: DRO A. G. Eckstein 2000-02-09 14:34:52 UTC Re: DRO SMITH, THOMAS B. (JSC-DX) 2000-02-10 10:08:36 UTC RE: DRO PTENGIN@a... 2000-02-10 10:34:29 UTC Re: RE: DRO Rudy du Preez 2000-02-10 22:02:01 UTC RE: DRO Jean-Luc Luczak 2000-02-11 00:05:19 UTC Re: RE: DRO Dan Mauch 2000-02-11 06:25:05 UTC Re: RE: DRO Dan Mauch 2000-02-11 07:02:34 UTC Re: RE: DRO SMITH, THOMAS B. (JSC-DX) 2000-02-11 09:54:34 UTC RE:DRO PTENGIN@a... 2000-02-11 10:37:26 UTC Re: RE:DRO SMITH, THOMAS B. (JSC-DX) 2000-02-11 10:45:08 UTC RE: DRO Joe Landau 2000-02-23 21:08:49 UTC Re: DRO A. G. Eckstein 2000-02-24 14:08:20 UTC Re: DRO wanliker@a... 2000-02-24 16:22:55 UTC Re: DRO A. G. Eckstein 2000-02-24 17:06:02 UTC Re: DRO Ted Robbins 2000-02-24 17:52:50 UTC Re: DRO Joe Landau 2000-02-24 21:31:07 UTC Re: DRO ptengin@a... 2000-02-24 22:22:58 UTC Re: DRO Terry May 2000-02-24 13:48:07 UTC RE: DRO Marshall Pharoah 2000-02-25 05:38:13 UTC Re: DRO Steve Carlisle 2000-02-25 08:23:15 UTC Re: DRO wanliker@a... 2000-02-25 09:00:12 UTC Re: DRO Ian Wright 2000-02-25 13:13:09 UTC Re: DRO A. G. Eckstein 2000-02-25 15:51:51 UTC Re: DRO A. G. Eckstein 2000-02-25 15:54:00 UTC Re: DRO A. G. Eckstein 2000-02-25 16:32:47 UTC Re: DRO A. G. Eckstein 2000-02-25 16:36:20 UTC Re: DRO Jon Elson 2000-02-26 00:19:48 UTC Re: DRO A. G. Eckstein 2000-02-26 04:29:28 UTC Re: DRO beer@s... 2000-03-10 11:21:23 UTC DRO D.F.S. 2000-03-10 13:47:29 UTC Re: [CAD_CAM_EDM_DRO] DRO Murray Leshner 2000-04-06 22:58:50 UTC DRO Ron Ginger 2000-04-07 05:36:19 UTC Re:DRO wanliker@a... 2000-12-30 16:18:14 UTC Re: [CAD_CAM_EDM_DRO] DRO Tim Goldstein 2000-12-30 22:45:36 UTC RE: [CAD_CAM_EDM_DRO] DRO wanliker@a... 2000-12-31 08:12:58 UTC Re: [CAD_CAM_EDM_DRO] DRO rekmac 2002-01-18 07:53:26 UTC DRO babinda01 2002-01-30 13:25:17 UTC DRO ccs@m... 2002-01-30 13:46:10 UTC Re: [CAD_CAM_EDM_DRO] DRO ballendo 2002-01-30 20:44:14 UTC Re: DRO Jon Elson 2002-01-30 22:35:11 UTC Re: [CAD_CAM_EDM_DRO] DRO Robert Bachman 2002-01-31 06:42:19 UTC Re: [CAD_CAM_EDM_DRO] Re: DRO Ian W. Wright 2002-02-01 03:28:26 UTC DRO ccs@m... 2002-02-01 07:11:05 UTC Re: [CAD_CAM_EDM_DRO] DRO Ian W. Wright 2002-02-01 08:36:42 UTC Re: [CAD_CAM_EDM_DRO] DRO ccs@m... 2002-02-01 08:48:20 UTC Re: [CAD_CAM_EDM_DRO] DRO Lew 2002-02-01 10:01:47 UTC RE: [CAD_CAM_EDM_DRO] DRO Ian W. Wright 2002-02-01 10:22:59 UTC Re: [CAD_CAM_EDM_DRO] DRO Ian W. Wright 2002-02-01 10:25:14 UTC Re: [CAD_CAM_EDM_DRO] DRO Lew 2002-02-01 15:19:17 UTC RE: [CAD_CAM_EDM_DRO] DRO Ian W. Wright 2002-02-01 16:27:43 UTC Re: [CAD_CAM_EDM_DRO] DRO Lew 2002-02-01 18:12:14 UTC RE: [CAD_CAM_EDM_DRO] DRO Arthur Shute 2002-02-18 10:52:28 UTC DRO Ken Jenkins 2002-04-02 06:13:16 UTC Re: DRO James Owens 2002-05-21 08:17:26 UTC DRO Gene 2003-02-06 04:19:19 UTC DRO Hans Wedemeyer 2003-02-06 09:14:20 UTC Re: [CAD_CAM_EDM_DRO] DRO Gene 2003-02-06 10:13:41 UTC Re: [CAD_CAM_EDM_DRO] DRO Hans Wedemeyer 2003-02-06 11:42:54 UTC Re: [CAD_CAM_EDM_DRO] DRO mayfieldtm <mayfiet@i... 2003-02-06 11:56:46 UTC Re: DRO Myron Cherry 2003-02-06 22:33:45 UTC Re: [CAD_CAM_EDM_DRO] DRO krmnalmind0351 <krmnalmind@a... 2003-02-07 09:21:32 UTC Re: DRO Hans Wedemeyer 2003-02-07 11:38:49 UTC Re: [CAD_CAM_EDM_DRO] Re: DRO Raymond Heckert 2003-02-07 17:50:25 UTC Re: [CAD_CAM_EDM_DRO] DRO dro_guy <dro_guy@h... 2003-02-07 22:17:05 UTC Re: DRO Doug Fortune 2003-02-08 17:47:17 UTC Re: [CAD_CAM_EDM_DRO] Re: DRO k8zre <rfs@c... 2003-02-08 18:38:54 UTC Re: DRO Doug Fortune 2003-02-08 20:12:15 UTC Re: [CAD_CAM_EDM_DRO] Re: DRO Myron Cherry 2003-02-08 20:24:34 UTC Re: [CAD_CAM_EDM_DRO] Re: DRO k8zre <rfs@c... 2003-02-09 06:46:29 UTC Re: DRO Doug Fortune 2003-02-09 12:05:01 UTC Re: [CAD_CAM_EDM_DRO] Re: DRO k8zre <rfs@c... 2003-02-09 16:23:18 UTC Re: DRO dro_guy <dro_guy@h... 2003-02-10 01:02:10 UTC Re: DRO dro_guy <dro_guy@h... 2003-02-10 01:05:04 UTC Re: DRO James Owens 2003-07-12 10:30:01 UTC DRO k8zre 2003-08-02 14:37:41 UTC DRO ROBERT ALLAN 2004-01-20 09:08:32 UTC DRO wanliker@a... 2006-04-25 10:39:16 UTC DRO k8zre 2008-04-06 17:48:54 UTC DRO bear_machine 2010-04-19 19:46:02 UTC DRO fbcsnh@c... 2010-04-20 08:15:38 UTC Re: [CAD_CAM_EDM_DRO] DRO smirob1 2010-04-20 15:11:27 UTC Re: DRO bear_machine 2010-04-20 23:45:22 UTC Re: DRO smirob1 2010-04-21 15:06:02 UTC Re: DRO roboticscnc 2010-04-22 07:35:05 UTC Re: DRO Drew Reynolds 2011-04-25 16:42:14 UTC DRO Art Eckstein 2011-04-25 16:54:14 UTC Re: [CAD_CAM_EDM_DRO] DRO Tom 2011-04-25 17:00:07 UTC Re: DRO wotisname 2011-04-25 17:04:15 UTC Re: DRO robin 2011-04-27 08:27:00 UTC Re: [CAD_CAM_EDM_DRO] DRO Joe Hovel 2011-04-27 08:29:57 UTC Re: DRO wildhorsesoftware 2011-04-27 08:54:34 UTC Re: DRO robin 2011-05-01 16:47:39 UTC Re: [CAD_CAM_EDM_DRO] DRO Rjreese29 2011-05-01 16:47:39 UTC Re: [CAD_CAM_EDM_DRO] DRO