Re: EMC stepper ini file

Thanks Ray
As a new member / cnc'er I'm still not real sure as to how casual to
be in this group. I don't wont to affend anyone with useless
replies / spam but, In closing let me say thanks for the reply and
motivation. This group has helped me immensely.

Looking forward to being as knowledgeable
Brian

--- In CAD_CAM_EDM_DRO@y..., Ray Henry <rehenry@u...> wrote:
>
> Hi Brian. Welcome to the EMC users club.
>
> Nope! Several have posted ini files to the emc list but they have
not
> been housed in any specific place. So much of it is redundant
that you
> would almost need to run diff to see how it was changed from
machine to
> machine.
>
> Yep! EMC is "do-able" at a beginners level. I was when I started
and
> it's a lot easier now thanks to folk like Fred, Will, Tom, Paul,
Tim, and
> Jon and a host of others. The answer to the question, "Have I
bitten off
> more than I can chew with the EMC, really depends upon your
> perseverence." It sounds like your background should make the
control
> and the motors the only hurdle.
>
> The steep learning curve has been smoothed a lot in recent years.
For
> perspective, you might go back to some of the early posts by those
of us
> who use it. I think Jon said it took him three weeks of double
shift and
> weekends (hyperbole) before he saw anything that looked like it
might run
> a machine. Jon is not one given to a lot of cussin', but I'd bet
if you
> read lips, he mouthed a few. I know Matt has! Paul's BDI reminds
me a
> bit of Douglas Adam's hyperspace bypass or a chunk of 90/94 in
Eastern
> Montana . You can get to a usable CNC pretty quick.
>
> Backlash is the problem with scales. There is a recent post in
the emc
> archive that talks about problems that one fellow (Dave Engvall)
has/had
> with servo tuning and lash between his motors and the glass
scales.
> Perhaps he will elaborate on his servo experience for us here.
>
> I assume that you plan to feed the scales back into the EMC using
a
> Kulaga/Mauch dro board and smdromod. Ordinary backlash
compensation is
> designed to read several encoder pulses and throw them away
whenever the
> direction changes. This is not the case with a scale because the
lash
> happens between the motor and the scale rather than between the
encoder
> and the axis bed. If we could find a software engineer who could
teach
> it to feed in backlash pulses as if this setup were an open loop
stepper
> setup but read the scale for position it might work.
>
> Ray
>
>
>
> >    Date: Tue, 17 Sep 2002 01:34:20 -0000
> >    From: "bdrmachine" <bdrmachine@h...>
> > Subject: EMC stepper ini file
> >
> > Is there a web source for examples of emc ini setup files?  I
have a
> > bp clone with 1070 oz-in steppers.  I'd like to understand
further
> > (By example) how to setup a bp clone with steppers and glass
> > scales.  Is EMC do-able at a beginners level?  I have a good
back
> > ground in electronics, Manual machining and pc windows.  I have
BDI
> > load on a pc with a steep learning curve ahead.
> >
> >
> > Thanks
> > Brian