Re: [CAD_CAM_EDM_DRO] Re: Rotary axis configuration question.

Try this John

INPUT_SCALE = 400 0 <Steps per degree
OUTPUT_SCALE = 1.000 0.000
MIN_LIMIT = -360.0 < Distance to limit switches
MAX_LIMIT = 360.0
MIN_OUTPUT = -10 < These parameters are in Volts
MAX_OUTPUT = 10


Illya

----- Original Message -----
From: "John Guenther" <j.guenther@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, June 30, 2002 3:35 AM
Subject: RE: [CAD_CAM_EDM_DRO] Re: Rotary axis configuration question.


> Al,
>
> In this case it is 2000 steps per revolution with the CMD-260 drivers in
> 2000 step per rev micro step mode so 400 * 360 = 144400 steps per rotary
> table revolution. My problem is I don't know how to get EMC to understand
> that this axis is working in degrees and not inches or mm. I have the axis
> configured as shown below:
>
> [AXIS_3]
>
> TYPE = ROTARY
> UNITS = 1
> HOME = 0.000
> MAX_VELOCITY = 1.2
> P = 1000.000
> I = 0.000
> D = 0.030
> FF0 = 0.000
> FF1 = 0.077
> FF2 = 0.000
> BACKLASH = 0.000
> BIAS = 0.000
> MAX_ERROR = 0.000
> DEADBAND = 0.000
> CYCLE_TIME = 0.001000
> INPUT_SCALE = -144000
> OUTPUT_SCALE = 144000 0.000
> MIN_LIMIT = -360.0
> MAX_LIMIT = 360.0
> MIN_OUTPUT = -360
> MAX_OUTPUT = 360
> ;FERROR = 1.000
> ;MIN_FERROR = 0.01
> HOMING_VEL = 0.1
> HOME_OFFSET = 0.0
> ENABLE_POLARITY = 0
> MIN_LIMIT_SWITCH_POLARITY = 0
> MAX_LIMIT_SWITCH_POLARITY = 0
> HOME_SWITCH_POLARITY = 1
> HOMING_POLARITY = 1
> JOGGING_POLARITY = 1
> FAULT_POLARITY = 1
>
>
> Any help will be appreciated. I can use it with TurboCNC but I would like
> to use it with EMC also.
>
> John Guenther
> Sterling, Virginia
>
> > -----Original Message-----
> > From: alenz2002 [mailto:alenz@...]
> > Sent: Saturday, June 29, 2002 13:37
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: [CAD_CAM_EDM_DRO] Re: Rotary axis configuration question.
> >
> >
> > John,
> > Something oesn't look right with those numbers. Here is my setup
> > with the Sherline rotary. The steppers are 1.8 deg/step or 200
> > steps/stepper revolution. I am using half step so get 400 steps per
> > stepper revolution. One stepper revolution is 5 degrees on the
> > rotary table, so that is 400/5 = 80 steps/deg. (Or 80 * 360 = 28,800
> > steps per rotary table revolution.)
> > Hope this helps,
> > Al Lenz
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., "John Guenther" <j.guenther@v...> wrote:
> > > Good Morning,
> > >
> > > I received a Sherline CNC rotary table for my birthday on Friday,
> > and now I
> > > am trying to configure EMC to work with it. My question is, do you
> > > configure it for the number of steps per degree or the number of
> > steps for
> > > one complete rotation? In the case of my setup with the Sherline
> > rotary
> > > table, it is 144000 steps per 360 degree rotation or 400 steps per
> > degree.
> > >
> > > As I have it currently configured if I issue the command g0 a1 it
> > will
> > > rotate the table one complete revolution.
> > >
> > > John Guenther
> > > Sterling, Virginia
> >
> >
> > Addresses:
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> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
>
>
> Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
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> Moderator: jmelson@... timg@... [Moderator]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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