On 1/17/2015 7:33 PM, Kirk Wallace wrote: > On 01/17/2015 04:11 PM, Chris Radek wrote: >> On Sat, Jan 17, 2015 at 11:06:20PM +0000, Andy Pugh wrote: >>> In that case you would also need a mux2 controlled by the same >>> signal to switch the feedback between encoder position and >>> commanded position for each axis. Though that would lose the DRO >>> so perhaps it would be better to change the F-error limits. >> I think you guys are thinking of this exactly backwards. If I >> understand right, you want to move the table manually while the >> spindle is running. You've gone down the path of wanting to trick >> linuxcnc into being in "machine on" mode even though the amps are >> disabled, so you can tell it to turn on the spindle. >> >> But the better solution is to leave linuxcnc in "machine off" mode, >> which disables the amps and gives you a working DRO, and more >> importantly, the position tracks so when you go back to "machine on" >> you don't get a nasty position jump or any other weirdness. >> >> So the problem remaining is that linuxcnc won't turn on the spindle >> in this mode. Right, so poke the button on the VFD that makes it >> come on, or install a (real actual) switch. >> >> Chris > Am I missing something? Whats wrong with a stand alone DRO/VFD gladeVCP > app that does nothing but display the position and interface to the VFD? >
Nothing wrong with what you suggest but isn't Chris' solution extremely simple... Dave --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
