[ATM] 18 point cell and ultra thin mirror.

[Dale Eason <atmpob@yahoo.com>]

I thought my 18 point cell should do better than the
wood and rubber mat.  Here is an image with the same
scale.

http://home.comcast.net/~doeason/DDavis/18_point_cell.gif

Surprise it is worse than the rubber pad. However most
of its error is astigmatism.  I think the mirror is so
light (5 lbs) that it does not let the wiffle tree do
its jog.  Perhaps I did not build it with enough care.
 Here is a web page show it in more detail.

http://home.comcast.net/~doeason/mirror_cell.htm

here is the cell with a clear mirror in place along
with the tap support.

http://home.comcast.net/~doeason/DDavis/cell_tape_support.jpg

Any thought are welcome.  Steve Koehler is make a
composit image of my cell and the error.  That way we
may be able to see some correlation.

Dale Eason

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
_______________________________________________
ATM mailing list http://www.atmlist.net/