On 17 Sep 2008 at 4:59, rtwas wrote: > Hello, > > Well the "HOME_SEARCH_VEL" vs "HOME_SEARCH_VELOCITY" was the > problem. Thanks for that. I have "homing" working, life is good. > > > > Emory Smith wrote: > > Also, if you're getting good latency and performance from the > > laptop, post that info here as well as model, mfgr, etc. Some > > laptops don't work well for EMC or other things requiring > > timeliness. > > > I'm not sure I know enough yet to evaluate the "latency". It might be > a good year of actually making parts with the thing before I would > know enough to see that.
The latency test should be run before anything else. http://www.linuxcnc.org/docview/html//config_stepconf.html#sec:Latency-Test If you used the stepconf wizard (and you should) the number reported by the latency test is needed for the wizard to set the speeds of your processes properly. Latency is how long it takes the PC to stop what it is doing and respond to an external request. In our case, the request is the periodic "heartbeat" that serves as a timing reference for the step pulses. The lower the latency, the faster you can run the heartbeat, and the faster and smoother the step pulses will be. > > The laptop I'm using is a "Dell Latitude C640". It's a pretty speedy > machine, runs a bit hot though. > > I do get about two of these during the first 5 minutes of starting up > emc2 though: > > "RTAPI ERROR: Unexpected realitime delay on task 1" > > After that I don't seem to get them anymore. You should only get it once then it does not report any more. But the problem did not go away! > > Things seem to work fine. Before I got "homing" to work, I did have a > 4-step (four separate files) g-code program running that drilled 8 > holes, bored 3 large holes, and squared off the plate. I never > actually made chips with it but I've run the program (with no cutting > being done) on the mill using this laptop and it operated as > advertised. > > Thanks again. > > Robert W. > > > ---------------------------------------------------------------------- > --- This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge Build the coolest Linux based applications with Moblin SDK & > win great prizes Grand prize is a trip for two to an Open Source event > anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
