I did change the torch on control to the spindle on function. I went back and tried inverting the step pins in stepconf. It works. I am at a loss for words, because I have never had them inverted. The only thing I have inverted is the Z home because I have it placed in an odd location to prevent a major mechanical foul-up. (Bad design, oh well.)
John, thanks for the idea. It worked. Andy, same for you. You guys saved me a considerable amount of tearing down and rebuilding! If you are interesting in seeing it, I have an old thread detailing the build process here: http://www.cnczone.com/forums/showthread.php?t=58874 Thanks again. I really do appreciate the help. > > Message: 2 > Date: Tue, 30 Jun 2009 05:46:23 -0600 > From: "John Thornton" <[email protected]> > Subject: Re: [Emc-users] 3 axis gantry used to work, now motors are > whining > To: "Enhanced Machine Controller \EEMC\"" > <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset=US-ASCII > > If you change the setting back does it work? > > Why are you using coolant flood for torch on? > Normally it is spindle on to control the torch. > > Can you revert your changes back to the point where it worked flawlessly? > > Gecko 201's step on the falling edge and have different step time and step > space. > Do you have the step pin inverted? > > John > > On 29 Jun 2009 at 20:43, Graham Cowan wrote: > > > I built a gantry-style plasma table. X, Y1, Y2 and Z axes, Y1 and Y2 > > linked > > together. Before I read that Stepconf doesn't work well with gantry > > systems, > > I actually got it to work. > > > > I needed to change a parallel port setting for coolant flood (torch > > on/off) > > and now the motors turn very very slowly, maybe even just bounce a > > little. > > > > The example config 'stepper-gantry' fails on EMC2 load. The config > > 'stepper-inch' loads but obviously will not help me with my > > particular > > setup. > > > > I have a PMDX-132, 4 Gecko 201 drivers, and four motors. Nothing > > wiring > > related has changed; it is obviously software-related. > > > > I compared the .hal files for my config and the stepper-inch .hal > > files and > > they seem to match up, with the exception of the coupled Y motors. > > > > My port pinout is simple: > > 1 - spindle on > > 2 - X dir > > 3 - X step > > 4 - Y1 dir > > 5 - Y1 step > > 6 - Y2 dir > > 7 - Y2 step > > 8 - Z dir > > 9 - Z step > > 10 - N/A > > 11 - X home > > 12 - Y home > > 13 - Z max limit inverted > > 14 - coolant flood > > 15 - N/A > > 16 - N/A > > 17 - charge pump > > > > I remember seeing Amplifier Enable somewhere but have no idea what > > it was > > for or if it was even used at all. > > > > If I use my old configuration, EMC will load fine with no problems, > > but when > > I try to operate the motors, they whine like they are moving but > > barely even > > make one or two steps. I also have had problems with the charge > > pump > > circuitry making my controller board pulse the outputs on and off, > > and it > > never did this either. > > > > I'm all ears for help. I feel like I have tried everything, but I'm > > sure I > > haven't considering my table worked flawlessly at one time, and now > > it > > doesn't. > > > > Thanks in advance for any help. > > > > -- > > Graham W. Cowan > > -------------------------------------------------------------------- > > ---------- > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > ------------------------------ > > Message: 3 > Date: Tue, 30 Jun 2009 10:03:09 +0100 > From: Andy Pugh <[email protected]> > Subject: Re: [Emc-users] 3 axis gantry used to work, now motors are > whining > To: "Enhanced Machine Controller (EMC)" > <[email protected]> > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1 > > 2009/6/30 Graham Cowan <[email protected]>: > > > I needed to change a parallel port setting for coolant flood (torch > on/off) > > and now the motors turn very very slowly, maybe even just bounce a > little. > > Not exactly science, but you could try inverting the step signals in > stepconf. I found this worked for me (though what I probably needed to > do was to change the mark/space ratio or something like that) > > > > If I use my old configuration, EMC will load fine with no problems, but > when > > I try to operate the motors, they whine like they are moving but barely > even > > make one or two steps. > > This might be due to EMC trying to move them too fast. Have the > accelleration and maximum speed changed? Can you jog at low speed at > all? > > -- > atp > > > > ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
