Matt Timmermans wrote:
Hi Andy,
If you already have a BDI-based config, you just need to change the EMCMOT parameter in the [EMCMOT] section of your ini file from "freqmod" to "quickstep".
If your PERIOD was set too high because of CPU limitations, you can probably set it lower. 0.000015 should be fine unless your system is very special.
If your DEFAULT_ACCELERATION and MAX_ACCELERATION are set unrealistically high to reduce path errors at corners, go ahead and set them to something your steppers can really handle, since the new BDI has path error limits.
If you were avoiding backlash compensation because you were losing steps, go ahead and put it back in, since quickstep enforces acceleration limits while compensating.
Hope that helps,
Matt
From: Andy Holcomb <[email protected]> Reply-To: "Help and advice for BDI-4 users."<[email protected]> To: [email protected] Subject: [Bdi4emc-help] stepper motor emc Date: Wed, 03 May 2006 23:23:22 -0500
From what I understand there is a new mode for emc to run stepper motors better, I have downloaded and installed bdi 4.44 and installed it. How do I install/run this new mode?
Andy Its good news indeed. Unforch, I'm about 900 miles from where I might try it out, and will be for another couple of months. I'm trying to resuscitate a tv station with a burned up antenna and transmission line & a transmitter that's had close to zero REAL maintainance in its 35 year life so far. Its a Harris dual 25 that ATM might be able to make 10kw of honest power, which was enough to start a fire because the feedlines and antenna were full of water. This should be interesting before its all done. I wish they would just let me retire instead of making the$e offer$ I haven't the good $en$e to turn down.
-- Cheers, Gene