From: Arthur W. Brooks
Sent: Wednesday, March 28, 2007 2:59 PM
To: Michael J. Duco
Cc: Thomas G. Brown; Robert A. Ellis; Michael E. Viola; Steve
Raftopoulos
Subject: RE: A1 and A2 Fiducial Nominals

Attachments: A1-2 Tooling Ball Coord After Realignment.xls

Mike,

Attached are the New Coordinates for the A1 and A2 fiducials following Coil Realignment. The transformation has 
changed the coordinates by no more than .008"

The original numbers were based on a best fit of the data you collected with the coils in the horizontal 
position on the wedge. You may want to hold onto these in case our coil realignment strategy changes.

If you need data in a different format than a spreadsheet let me know and I will convert it in the future.

Art

-----Original Message-----
From: Michael J. Duco 
Sent: Wednesday, March 28, 2007 7:33 AM
To: Arthur W. Brooks
Cc: Thomas G. Brown; Robert A. Ellis
Subject: RE: A1 and A2 Fiducial Nominals

Art,
I attempted to select a random set of points while going from horizontal to vertical on the A1 coil effort. 
Because of the deflections we experienced, I was unable to determine if the points I chose were accurate enough 
to consider acceptable. In the files I supplied to you, the points that have an arc and a line associated with 
them are points which were taken during an alignment and are to be considered most accurate 
(one less level of error). Any points that do not have an arc and a line are subject to add alignment error. 
If you can filter the points based on this criteria, and compare them to MTM's originals you can compile an accurate set.

Mike


 Michael J. Duco
Neutral Beam Cryogenics
Princeton University, Plasma Physics Lab
Forrestal Campus,Route 1 North at Sayre Dr.
P. O. Box 451
Princeton, N. J. 08543
mduco@pppl.gov 
(609)243-3787
(609)243-3373
-----Original Message-----
From: Arthur W. Brooks 
Sent: Monday, March 26, 2007 8:27 AM
To: Michael J. Duco
Subject: A1 and A2 Fiducial Nominals

Hi Mike,

Can you forward me a copy of what you are now calling the nominals for all the fiducials for A1 and A2 (initial 
flange tooling balls plus added tooling balls)? I will apply the transform to them that I obtained from our Coil 
Realignment Process (ie the realignment to compensate for winding deviations) and return you new values for the nominals.

I know the data is buried in the iges files you sent earlier, but we have multiple measurements of each point. 
I believe you selected one of the measurements to use as nominals (though they were all fairly close)

Thanks,

Art