CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: spindle counterweights

Posted by Doug Harrison
on 2001-09-17 23:49:16 UTC
>As the knee moves up air flows into the system to keep the pressure in the
cylinder from dropping. As the knee is lowered air is vented from the
cylinder by the regulator to keep the pressure from rising. I was surprised,
but you only have to lower the knee about 1/2" to get the regulator to vent.
>
Using a balanced (venting) regulator will work well for slow movements but
most balanced regulators will have trouble keeping up with a G0 movement.

I am still convinced that reducing the ACZ and DCZ parameters for the Galil
card will solve the problem. For what Camsoft charges they should be able
to provide some technical support.

Camsoft is not the first company to use the Galil card with questionable
results. I started writing a parser in 1994 for the DMC1040 card. Between
1994 and 1997 I looked at three software packages in addition to Galil's own
Gcode interpreter. Even the engineer's at Galil admitted their interperter
was problematic (euphemism for POS). None of the three aftermarket packages
survived to my knowledge.

The Galil board is perhaps the most powerful motion control card in
existance. Dr. Tal was doing feed-forward long before the big name CNC
controls had it. Unfortunately, Jacob Tal had little interest in machine
tool CNC and did nothing worthwhile to make his products Gcode friendly.
Galil eventually canned their Gcode interpreter due to it's reputation.

Galil further alienated the Machine tool community with their attitude that
if you can't make it work then you must be stupid - exactly the kind of
attitude that gives engineers and programmers a bad rap. I grew tired of
their tech support people calling to see how I was progressing and then
wishing me a good day when I asked them to explain a particular code
fragment from their set-up software that wouldn't even compile.

Well, I guess I got my finger stuck on the flame key. Sorry about that.
$2,800 bucks investment in Galil stuff is gathering dust in the closet.
Live and learn.

Doug

Discussion Thread

jag@g... 2001-09-16 11:10:29 UTC spindle counterweights Sven Peter 2001-09-16 14:06:02 UTC Re: [CAD_CAM_EDM_DRO] spindle counterweights Doug Harrison 2001-09-16 14:54:51 UTC Re: [CAD_CAM_EDM_DRO] spindle counterweights Doug Fortune 2001-09-16 15:50:11 UTC Re: [CAD_CAM_EDM_DRO] spindle counterweights Smoke 2001-09-16 19:47:17 UTC Re: [CAD_CAM_EDM_DRO] spindle counterweights Wally Daniels 2001-09-16 22:36:16 UTC Re: [CAD_CAM_EDM_DRO] spindle counterweights rslemon@l... 2001-09-16 22:53:49 UTC Re: spindle counterweights jag@g... 2001-09-16 23:58:08 UTC Re: spindle counterweights Jon Elson 2001-09-17 01:21:48 UTC Re: [CAD_CAM_EDM_DRO] spindle counterweights rslemon@l... 2001-09-17 03:25:40 UTC Re: spindle counterweights machines@n... 2001-09-17 04:04:28 UTC Re: spindle counterweights Tim 2001-09-17 13:25:03 UTC RE: [CAD_CAM_EDM_DRO] Re: spindle counterweights Smoke 2001-09-17 16:22:56 UTC Re: [CAD_CAM_EDM_DRO] Re: spindle counterweights shymu@b... 2001-09-17 23:36:10 UTC Re: spindle counterweights Doug Harrison 2001-09-17 23:49:16 UTC Re: [CAD_CAM_EDM_DRO] Re: spindle counterweights jag@g... 2001-09-19 05:39:53 UTC Re: spindle counterweights