RE: Need TkEmc Help

["George & Linda" <lbrandau-at-intrnet.net>]

Joel,
  I made the changes that you suggested and it really made a difference. The
machine is much snappier. I made my first programmed cuts. I am pleased with
the results. Will the new Emc binaries that where just uploaded correct the
G21 problem?
                Thanks everyone for the help. I am new to Linux, so I am
like back in kindergarten, and have still much to learn.
                              George

> -----Original Message-----
> From: emc-at-nist.gov [emc-at-nist.gov]On Behalf Of Joel Jacobs
> Sent: Thursday, August 09, 2001 9:11 AM
> To: Multiple recipients of list
> Subject: Re: Need TkEmc Help
>
>
>
>
> ----- Original Message -----
> From: "George & Linda" <lbrandau-at-intrnet.net>
> To: "Multiple recipients of list" <emc-at-nist.gov>
>
> > Every time I reopen
> > the TkEmc icon I have to push the reset button, because the
> controller is
> in
> > G21. Where can I change this to correct this problem?
>
> You will have to use the reset until you get a newer Tkemc - This is fixed
> in the newer version.
>
> >    I just noticed that on the Y and Z axis, that the readout is going in
> the
> > wrong direction. I mean that when I push the positive button,
> the readout
> > counts in the negative direction and visa versa.
>
> > [AXIS_0]
> > INPUT_SCALE =                   8000   0
> > OUTPUT_SCALE = 8000.0000 0.0000
> Change these to -8000,0 to reverse the motors.
>
> > This is a Pentium III
> > 733 computer, using stepper motors. Any tune-up tips on the below .ini
> file
> > are welcomed.
>
> > [DISPLAY]
> > ; Cycle time, in seconds, that display will sleep between polls
> > CYCLE_TIME =            0.200
> Change this to .100 to improve the accuracy of the backplotter
>
> > ; Base task period, in seconds
> >  PERIOD =                0.000167
> DEFINATELY decrease this. I have mine at .000016 (note extra zero) on a
> 400mhz K6.  You should be able to get even smaller.  Decrease until the
> machine gets lathargic or locks up - then increase a bit.
>
> > DEADBAND = 0.005
> Too much. This should be slightly more than 1/2 step to prevent the motors
> from toggling back and forth while setting still.  At 8000
> steps/in 1/2 step
> is .0000625 I would try .0001
>
> Good luck..
> Joel
>
>
>