Re: [CAD_CAM_EDM_DRO] Re: emc and following error problems

Hi!
Sorry for an unrelated question.
Is it possible to purchase from you a CD with EMC preinstalled?
Regards, Alex

----- Original Message -----
From: Ray Henry <rehenry@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, November 28, 2002 9:04 AM
Subject: [CAD_CAM_EDM_DRO] Re: emc and following error problems


>
> ..eh
>
> First ting eh. Unable to move an axis at any speed is a good clue that
> something big is amiss. I'd vote for the parenthetical part of #1
> first., #3 second. #2 is in there so you don't go to sleep waiting for
> it to go.
>
> 1 - I have not had a chance to try out the univstepmod.o yet but it
> should go. (I'd also make output scale equal to input scale, just in
> case)
>
> 2 - Accel is units per second per second. With tiny units it will be
> real slow getting up to 20 units per second.
>
> 3 - In metric mode you will need to multiply the following error values
> by 25.4. They are in percent of a unit and with the metric definitions
> your units are small to begin with.
>
> 4 - Deadband is way big. Half a mm is specified and that sounds more
> like backlash but it won't run well with that much lash in the file.
> Half a pulse for deadband is okay although Paul recently said take two
> pulses.
>
> My real inclination is to define the machine in inch since the screws are
> that and then run it all in g21.
>
> HTH
>
> Ray
>
>
> On Wednesday 27 November 2002 04:02 pm, you wrote:
> > Message: 10
> > Date: Wed, 27 Nov 2002 17:46:03 -0000
> > From: "got_milk_eh" <got_milk_eh@...>
> > Subject: emc and following error problems
> >
> > Hi,
> > I'm setting up emc for the first time and I'm getting
> > following errors. So far I have been unable to move any of the
> > axis. As soon as I try to jog, it gives me the following error
> > and estops. I'd appreciate any help the list can offer. My
> > setup is as follows,
> >
> > BDI 2.16 with EMC 2.18 update. I recompiled 2.18 after getting a
> > patch from Jon Elson for his universal stepper board. EMC starts
> > and runs fine. Computer is a p233 with 128M ram.
> >
> > Universal stepper board from Jon with gecko 210's in full step
> > mode, have not put the step multipliers on yet.
> >
> > Taig mill, with 20tpi screws in metric mode for emc ini.
> >
> > Here's the ini file,
> <snips>
> > EMCMOT = univstepmod.o
> <s>
> > MAX_VELOCITY = 20.0
> > DEFAULT_ACCELERATION = 2.0
> > MAX_ACCELERATION = 2.0
> <s>
> > ; First axis
> > [AXIS_0]
> >
> > TYPE = LINEAR
> > UNITS = 1.0
> > HOME = 0.000
> > MAX_VELOCITY = 20.0
> > P = 1000.000
> > I = 0.000
> > D = 0.000
> > FF0 = 0.000
> > FF1 = 5.000
> > FF2 = 0.000
> > BACKLASH = 0.000
> > BIAS = 0.000
> > MAX_ERROR = 0.000
> > DEADBAND = 80.000
> > CYCLE_TIME = 0.001000
> > INPUT_SCALE = 157.480315555 0.000000000
> > OUTPUT_SCALE = 1.000000000 0.000000000
> > MIN_LIMIT = -1000.0
> > MAX_LIMIT = 1000.0
> > MIN_OUTPUT = -10
> > MAX_OUTPUT = 10
> > FERROR = 1.000
> > MIN_FERROR = 0.250
>
>
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