CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] CNC Test File

Posted by Art Fenerty
on 2001-08-25 17:03:22 UTC
Hi Allan:

Actually, the credit belongs to those guru's at NIST. I took apart the
EMC software to understand the theory of how they did their look ahead and
rewrote it to accomadate the way I get around windows limitations on
real-time. I also wrote algorithms to Asyncronously pulse each axis when
required with a granularity of 122uS and made several babysitting algorithms
to make sure flow is steady and even. The result is amazing. I only have a
few test reports in, but the general comment is "WOW" from the people using
it. Never having used EMC or the like, I never new the difference could be
that big. I have buffered lines of translation to 200 lines for lookahead
and velocity blended according to pulse count on a per axis basis. My only
concern is how much computing power a person might need. At present, I'm
buffering about 200 Blocks a second, but the Pulse engine transformer can't
even begin to keep up to that speed, so its a game of seeing just how many
machines like it, and how many don't. Time will tell..

Art

Discussion Thread

Art Fenerty 2001-08-24 15:52:03 UTC CNC Test File cncdxf@a... 2001-08-24 16:30:00 UTC Re: CNC Test File William Scalione 2001-08-24 21:27:18 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Jon Elson 2001-08-24 23:26:04 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Art Fenerty 2001-08-25 04:27:08 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Art Fenerty 2001-08-25 04:28:56 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Fred Smith 2001-08-25 04:46:54 UTC Re: CNC Test File Art Fenerty 2001-08-25 04:53:42 UTC Re: [CAD_CAM_EDM_DRO] Re: CNC Test File Art Fenerty 2001-08-25 04:58:24 UTC Re: [CAD_CAM_EDM_DRO] Re: CNC Test File Jon Elson 2001-08-25 11:04:21 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: CNC Test File Art Fenerty 2001-08-25 11:16:41 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: CNC Test File Alan Marconett KM6VV 2001-08-25 11:18:18 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Art Fenerty 2001-08-25 17:03:22 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Ray 2001-08-25 17:22:31 UTC Re: Re: Re: Re: CNC Test File info.host@b... 2001-08-25 17:30:35 UTC Re: [CAD_CAM_EDM_DRO] Re: Re: Re: Re: CNC Test File Tom Eldredge 2001-08-27 10:14:50 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Jon Elson 2001-08-27 11:39:16 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File Chris L 2001-08-27 19:38:46 UTC Re: [CAD_CAM_EDM_DRO] CNC Test File