Hi John, I can't think of any possible reason why it would work with a pyvcp button, but not when using the parport.
> Has anyone used M66 with a parport input? > > I seem to be unable to make it work with a hardware input. > I have made it work using a pyVCP button. > I'm told that it works so I must not be able to figure it out. > > What I have done so far is documented here: > http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Mword > > If anyone can point out where I failed that would help. > > I think that M66 would be better for plasma control than using > the spindle on/off as the spindle is not real time. M66 is way further away from realtime than spindle control. It causes the interpreter to halt and wait for an input, and once that comes (checked by task which is not realtime), it starts interpreting, putting things back on the queue, which then get executed, etc. If for example the harddrive happened to spin down during the M66 wait, the interpreter *can* take a long time before it starts resuming.. > Thanks > John Regards, Alex ------------------------------------------------------------------------- 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users