Re: [CAD_CAM_EDM_DRO] I'm curious
Posted by
R Rogers
on 2005-07-20 07:04:23 UTC
If you've ever seen a properly setup Mach3/ Gecko system operate then you'd know why people don't bother with the obsolete control hardware on Ebay. My Bridgeport has .0001" resolution and is now true closed loop. It's been running for two years daily and I haven't had any problems with it. In the event that I did, it would be a matter of a phone call and I could have a new component the next day. A replacement for a system that you suggest would result in another Ebay scrounge and alot of finger-crossing.
I see posters on here asking questions about their Ebay "treasures" because they've contacted the manufacturer and couldn't get any information on them, not even a pinout. Internet searches were futile. This is a better approach?
In regards to the Gecko being "amateur hour". Don't let it's small size fool you. A look inside one under it's cover will reveal it's anything but amateur. It is an excellent drive and extremely reliable. Ex. I'm running 40 lb-in servos on all three axis's. For Z I am driving the knee that weighs close to 1000 pounds with no gas springs or counterweights. I ran one job in particular that consisted of 1280 7/8" holes 3" deep in steel. The gecko faired perfectly. The only problem I had was after about 6 hours of continual operation, I had to stop and let the Z motor cool down.
Ron
P.S. I Ebay'd all the old "Allen Bradley" components during the retrofit.
yahoo@... wrote:
Why don't I see more CNC guys putting together drive system from major
manufacturers.
I've been watching this group for the last month and looking in the archives
it seems like this hobby is stuck in the late 70's.
I've looked at these "Gecko" type drivers they sell to drive Bi/Uni polar
motors at best half step for $150 and up, and all this is purely amateur
hour stuff.
Ridiculous! Seriously this seems really crazy to me. Why on earth would I
drive several hundreds if not thousands of pound worth of machinery moving
at high speeds with pulses from a parallel port and using DOS no less.
When you can talk to an professional industrial grade indexer via serial or
device driver and run it under Windows or Linux if you must. These indexers
are very intelligent and handle all the I/O, Encoders, drivers, backlash,
deadband, linked moves, curve interpolation, limit monitoring, and more.
I just did a quick search for Compumotor products (my personal favorite) and
here what I found today;
A pair of 50000 Microstep Stepper Drivers starting at $19 with $180 buy it
now
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532426297
or other microstepper drivers (Zetas 4 are great)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530904583
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530594973
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530907082
Paired up with any S 57 or 83 series motor
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532121199 $25 (low
torque)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531200682 $24 (low)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530594904 $10 (high
400oz)
slap some $40 US Digital 2000 line encoders on these and it a closed loop at
8000 ppr.
Servo Drivers?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532283428 $75
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531003102 $23
Pair it up with these motors;
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532283649 $45
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531512855 $35
I see PC-23 and 6000 series indexers for sale for a few hundred all the
time.
There's a 6K2 with an Expansion i/o module for $780 but that's a bit high.
There are also TWO whole 4 axis system starting at $1000 with indexer,
drivers, motors!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532416649
Whew! Glad I got that off my chest... Guess the reaming is next :)
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
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List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
Moderator: pentam@... indigo_red@... davemucha@... [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
Yahoo! Groups Links
[Non-text portions of this message have been removed]
I see posters on here asking questions about their Ebay "treasures" because they've contacted the manufacturer and couldn't get any information on them, not even a pinout. Internet searches were futile. This is a better approach?
In regards to the Gecko being "amateur hour". Don't let it's small size fool you. A look inside one under it's cover will reveal it's anything but amateur. It is an excellent drive and extremely reliable. Ex. I'm running 40 lb-in servos on all three axis's. For Z I am driving the knee that weighs close to 1000 pounds with no gas springs or counterweights. I ran one job in particular that consisted of 1280 7/8" holes 3" deep in steel. The gecko faired perfectly. The only problem I had was after about 6 hours of continual operation, I had to stop and let the Z motor cool down.
Ron
P.S. I Ebay'd all the old "Allen Bradley" components during the retrofit.
yahoo@... wrote:
Why don't I see more CNC guys putting together drive system from major
manufacturers.
I've been watching this group for the last month and looking in the archives
it seems like this hobby is stuck in the late 70's.
I've looked at these "Gecko" type drivers they sell to drive Bi/Uni polar
motors at best half step for $150 and up, and all this is purely amateur
hour stuff.
Ridiculous! Seriously this seems really crazy to me. Why on earth would I
drive several hundreds if not thousands of pound worth of machinery moving
at high speeds with pulses from a parallel port and using DOS no less.
When you can talk to an professional industrial grade indexer via serial or
device driver and run it under Windows or Linux if you must. These indexers
are very intelligent and handle all the I/O, Encoders, drivers, backlash,
deadband, linked moves, curve interpolation, limit monitoring, and more.
I just did a quick search for Compumotor products (my personal favorite) and
here what I found today;
A pair of 50000 Microstep Stepper Drivers starting at $19 with $180 buy it
now
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532426297
or other microstepper drivers (Zetas 4 are great)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530904583
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530594973
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530907082
Paired up with any S 57 or 83 series motor
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532121199 $25 (low
torque)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531200682 $24 (low)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530594904 $10 (high
400oz)
slap some $40 US Digital 2000 line encoders on these and it a closed loop at
8000 ppr.
Servo Drivers?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532283428 $75
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531003102 $23
Pair it up with these motors;
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532283649 $45
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7531512855 $35
I see PC-23 and 6000 series indexers for sale for a few hundred all the
time.
There's a 6K2 with an Expansion i/o module for $780 but that's a bit high.
There are also TWO whole 4 axis system starting at $1000 with indexer,
drivers, motors!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7532416649
Whew! Glad I got that off my chest... Guess the reaming is next :)
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@... davemucha@... [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
Yahoo! Groups Links
[Non-text portions of this message have been removed]
Discussion Thread
Ron Kline
2005-07-19 20:18:15 UTC
Art machining
yahoo@h...
2005-07-19 22:05:20 UTC
I'm curious
Brian
2005-07-19 22:14:44 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Jack Hudler
2005-07-20 00:06:09 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
wanliker@a...
2005-07-20 01:14:52 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
turbulatordude
2005-07-20 01:24:53 UTC
Re: I'm curious
mike
2005-07-20 03:46:58 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
R Rogers
2005-07-20 07:04:23 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
David Bloomfield
2005-07-20 07:40:50 UTC
Re: I'm curious
Ted Gregorius
2005-07-20 08:31:37 UTC
Re: I'm curious
Mike
2005-07-20 09:16:52 UTC
Re: I'm curious
Jon Elson
2005-07-20 09:55:27 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Dan Mauch
2005-07-20 11:02:45 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Randy Brewer
2005-07-20 13:49:03 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 14:03:39 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
yahoo@h...
2005-07-20 14:07:59 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
Jack Hudler
2005-07-20 14:08:13 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
yahoo@h...
2005-07-20 14:08:45 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 14:09:02 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 14:11:24 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Jack Hudler
2005-07-20 14:30:16 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 14:30:21 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
David A. Frantz
2005-07-20 14:31:03 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 14:55:16 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Randy Brewer
2005-07-20 15:16:03 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
R Rogers
2005-07-20 15:36:02 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Jack
2005-07-20 16:08:38 UTC
Re: I'm curious
Randy Brewer
2005-07-20 16:31:16 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Beau Beaufait
2005-07-20 17:15:59 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Erie Patsellis
2005-07-20 17:20:14 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Erie Patsellis
2005-07-20 17:22:21 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Ron Yost
2005-07-20 17:36:00 UTC
OT: X-Cad = Alibre Design Xpress
Randy Brewer
2005-07-20 18:17:06 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 18:36:34 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Jon Elson
2005-07-20 18:47:53 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 19:39:49 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Randy Brewer
2005-07-20 19:51:26 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
John Delaney
2005-07-20 20:46:52 UTC
Re: I'm curious
Erie Patsellis
2005-07-20 21:23:59 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 21:42:51 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
JanRwl@A...
2005-07-20 21:43:49 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
David A. Frantz
2005-07-20 22:19:35 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
David A. Frantz
2005-07-20 22:33:12 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-20 22:43:15 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
mpictor
2005-07-20 23:11:11 UTC
Re: I'm curious
yahoo@h...
2005-07-20 23:41:02 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Doug M
2005-07-21 06:44:35 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
Doug M
2005-07-21 06:47:15 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
caedave
2005-07-21 06:55:27 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
caedave
2005-07-21 08:02:14 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
turbulatordude
2005-07-21 08:11:55 UTC
Re: I'm curious
caedave
2005-07-21 08:17:34 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Alan Marconett
2005-07-21 09:06:26 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
David A. Frantz
2005-07-21 09:08:59 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
David A. Frantz
2005-07-21 09:16:38 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Jon Elson
2005-07-21 10:10:38 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
David A. Frantz
2005-07-21 10:21:03 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Jon Elson
2005-07-21 10:22:06 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
yahoo@h...
2005-07-21 11:52:49 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
yahoo@h...
2005-07-21 12:05:26 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Jack Hudler
2005-07-21 12:11:39 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
Andy Wander
2005-07-21 12:23:49 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
yahoo@h...
2005-07-21 12:33:20 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
Alan Marconett
2005-07-21 12:44:11 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
Ted Gregorius
2005-07-21 12:54:25 UTC
Re: I'm curious
JanRwl@A...
2005-07-21 13:38:29 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
caedave
2005-07-21 14:32:22 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
caedave
2005-07-21 15:01:36 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
caedave
2005-07-21 15:32:29 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
John Delaney
2005-07-21 15:34:06 UTC
Re: I'm curious
caedave
2005-07-21 15:53:32 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
David A. Frantz
2005-07-21 20:51:15 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
art
2005-07-21 20:55:17 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
David A. Frantz
2005-07-21 21:03:17 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Jon Elson
2005-07-21 22:25:56 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Jon Elson
2005-07-21 22:31:33 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Jon Elson
2005-07-21 22:33:39 UTC
Re: [CAD_CAM_EDM_DRO] Re: I'm curious
Jon Elson
2005-07-21 22:38:24 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
turbulatordude
2005-07-21 23:49:03 UTC
Re: I'm curious
Jack Hudler
2005-07-22 00:03:42 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Alex Holden
2005-07-22 01:02:53 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
R Rogers
2005-07-22 04:36:59 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious, Please read...
R Rogers
2005-07-22 04:58:43 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious, Please read...
art
2005-07-22 05:03:08 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
art
2005-07-22 05:06:03 UTC
Re: [CAD_CAM_EDM_DRO] I'm curious
Tim McCoy
2005-07-22 10:17:04 UTC
Re: I'm curious
Jack Hudler
2005-07-22 12:19:43 UTC
RE: [CAD_CAM_EDM_DRO] I'm curious
Jack Hudler
2005-07-22 13:21:27 UTC
RE: [CAD_CAM_EDM_DRO] Re: I'm curious
John Delaney
2005-07-22 20:04:40 UTC
Re: I'm curious, Please read...
Mariss Freimanis
2005-07-23 19:07:10 UTC
Re: I'm curious