On Dec 17, 2013, at 8:26 PM, Jon Elson <el...@pico-systems.com> wrote:
> n 12/17/2013 08:29 PM, Jeshua Lacock wrote: >> >> >> It looks like Max Velocity was at the default max (912 in/min) for that >> test, but I confirmed it does the same thing with max velocity set way low >> like 16 in/min. > Turning MAX_VELOCITY down in the INI file will make it > worse. OR, > do you mean turning it down in the GUI (Axis?) Depending on > LinuxCNC > version, the GUI max velocity slider may not limit your > rapid\feed (G0) moves! So, make sure you can move at the > desired > speeds in G1 first. If it only fails in G0, then it is most > likely that > you have set excessive velocities in your [TRAJ] section. >> Interesting it would go that fast though because currently the limits I have >> set for testing in the config file are far lower than that. E.g. that >> MAX_VELOCITY for that drive is currently set to 30.5 and PID_MAX_VEL is set >> to 30.65. > My reading of the plot is about one vertical unit at .2" > (200m) in half > a second, or .4" per second = 24 IPM. That's a rough guess > by eye. > Also, the error trace is very suspicious! It hums along at > a very small > error (~.0005" or less) for the entire move, then suddenly > surges to > .010" or so when it trips the following error limit. The > only thing I can > figure is that the next command is for a MUCH higher velocity, > which the motion hardware cannot perform. >> >> It does seem to stop on the same gcode line for any given gcode file. >> > That is also quite bizarre, if true. If the "same line" of > the G-code file > tells it to do something different, it would be odd for that > to cause > a fault. OK - thanks everyone for their help! I actually just plugged the power supply directly into the wall instead of through a SSR controlled by the USC. Must be some sort of interference? Best, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated <http://3DTOPO.com> Phone: 208.462.4171 ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
