Subject: Re: Problem raith 2003-08-18 16:45:09: Raith Coordinates lost or strange coordinate readouts.
From: James Conway <>
Date: Wed, 20 Aug 2003 11:02:46 -0700


Be advised that you should select "reset X-Y coordinates system" when
to on the system as the application launches unless you were the last
This resets X:Y = U:V and gives you a good start.

If you are prompted to "Find and home All Positions" this is likely due
to the
system seeing a delta in the position from where it expected to be upon
application launch.  It is perfectly fine to 'Find home positions' at
beginning of any critical work.
(It is normal to fail motor 5 the loader arm as the limit is set to just
touching the slit valve door.)

If you see strange stage moves, a loss of joystick control, or totally
ridiculous numbers like Dan experienced a few days ago.
Press the STOP SIGN in the stage control window and it may recover then
there -- otherwise perform the "Find Home Positions" (FHP) routine and
should be good to go.

Otherwise reset the RAITH computer then perform the FHP when you launch

Thank you,

James Conway

Dan Grupp wrote:

> i'll tyr that. i think it was slowly crashing, cursors started going funny
> too.
> -d
> On Tue, 19 Aug 2003, James Conway wrote:
> > Select Find Home positions and re-find your coordinate system....
> >
> > I will watch out for this to reoccur.
> >
> > JWC
> >
> >
> >
> ---------------------------------------------------------------------------
> Dr. Daniel Grupp, Visiting Scholar
> Center for Integrated Systems
> Stanford University
> Stanford, CA 94305
> (650) 724-6911
> FAX:  723-4659
> ---------------------------------------------------------------------------