cal,
Gotcha, thanks I wouldn't have thought about that.
mark
At 11:21 AM 3/25/2010, you wrote:
>Oh, In regard to the "method" post, Consideration for backlash must be
>part of the move distance. Whether Backlash Take Up (BTU) value or Uni
>directional Approach (UDA) compensation.
>
>There is always some! The use of travel indicators will tell you how much.
>
>
>----- Original Message -----
>From: "Mark Wendt (Contractor)" <[email protected]>
>To: "Enhanced Machine Controller (EMC)" <[email protected]>
>Sent: Thursday, March 25, 2010 10:36
>Subject: Re: [Emc-users] Jogging inaccuracies
>
>
> > Cal,
> >
> > 'Splain that one to me. I'm having trouble getting my mind
> > around that setup and how it will determine the accuracy of the run
> > down the x axis. I've never seen it done so I'm not sure how I'd set that
> > up.
> >
> > Mark
> >
> > At 10:25 AM 3/25/2010, you wrote:
> >>Put a lesser indicator at each end of the span.
> >>
> >>The distance between is moot.
> >>
> >>
> >>----- Original Message -----
> >>From: "Mark Wendt (Contractor)" <[email protected]>
> >>To: "Enhanced Machine Controller (EMC)" <[email protected]>
> >>Sent: Thursday, March 25, 2010 10:20
> >>Subject: Re: [Emc-users] Jogging inaccuracies
> >>
> >>
> >> > At 10:10 AM 3/25/2010, you wrote:
> >> >>You also need to take into account the form accuracy of the rack and
> >> >>its gear, this will give a cyclic error at tooth rate.
> >> >>
> >> >>The stepper will not give accurate amounts with microsteps, again its
> >> >>a cyclic error between steps specially if the torque as a percentage
> >> >>of what the stepper can do.
> >> >>
> >> >>Dave Caroline
> >> >
> >> > Sure wish I knew somebody with a 52" dial indicator... ;-) That's
> >> > the length of the run in the x axis. Be nice to see if this kinda
> >> > all averages out over the length of the run.
> >> >
> >> > Mark
> >> >
> >> >
> >> >
> >>
> ------------------------------------------------------------------------------
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> >>
> >>
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> >
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> ------------------------------------------------------------------------------
> > Download Intel® Parallel Studio Eval
> > Try the new software tools for yourself. Speed compiling, find bugs
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>------------------------------------------------------------------------------
>Download Intel® Parallel Studio Eval
>Try the new software tools for yourself. Speed compiling, find bugs
>proactively, and fine-tune applications for parallel performance.
>See why Intel Parallel Studio got high marks during beta.
>http://p.sf.net/sfu/intel-sw-dev
>_______________________________________________
>Emc-users mailing list
>[email protected]
>https://lists.sourceforge.net/lists/listinfo/emc-users
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Emc-users mailing list
[email protected]
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