Thanks for all the suggestions! I'm making progress. Installed EMC 2.2.1 from the latest live CD and am experimenting with steplen & dirhold that I didn't have in 2.0.1. Adjusting acceleration on the Y axis has helped too. Getting a nice ramp up and down.
After running stepconf, I have a configuration with these values: steplen 1, stepspace 0, dirhold 36920, dirsetup 36920 Changing steplen to 2, dirhold & dirsetup to 75000 helped. Fewer dropped steps. Left stepspace at 0 because of no docs on it. Didn't know whether to double it or half it ;^) In my hal file, "setp parport.0.reset-time 5000" is new to me. Any reason to change it? Are the dirhold & dirsetup numbers nanoseconds? Can't find info on what stepspace & dirsetup do. Any hints where to look? I can sometimes hear the stepper "bump" when it drops a step. Tomorrow, I'll put an oscilloscope on 2 of the leads to the Y motor, run it and watch for anomalies in the waveform that coincide with the "bump" sound. (It'll only do it whenever I look away, of course ;^) These questions were asked of me in this thread: What stepper drive? Stepper3. Rated 25V @ 1A. 1MHz max What stepper motors? Vexta PH265-04-C18, 1.8"/step, 5V 1A Thanks again, -- Emory Smith [EMAIL PROTECTED] http://defoliants.googlepages.com ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
