[ATM] Nearly polished...but...

["Norm Prince" <princenorman@bellsouth.net>]

Okay so I've got 8 or 9 hours of polishing in on the 12" f/5 project, and 
its looking pretty well polished...(i've been looking at it with my "laser 
line", my ghetto version of the laser polish test notion)...the last 1/4" of 
edge is being a bit reluctant to take a polish along with the rest of the 
mirror...and its bugging me...but that's not my big question.

So i gave it a look-see under the KE, and it appears to be hyperboloid (I 
could be wrong but that's my best guess, I can try to take a feeble picture 
for anyone curious)...wow what an odd shape...I've never actually seen that 
shape under a KE so it took me a bit of time with nose in books and playing 
with "Ronchi for Windows" to figure out what the heck i was looking at in my 
own mirror.  Okay, so I wasn't able to find any understandable advise as to 
how to fix that shape in Howard, or a copy of a book by Jean Texereau.  Any 
suggestions as to how to proceed and get back on a better track???

Let me add tho that my pitch lap has totally had it...at least sort of...the 
channels are completely gone on about 80% of it from center out, and I'm 
freaked out about trying to rechannel it (and not sure how to do it short of 
a saw) for fear of getting something really scratchy in it at this point. 
Part of the problem is the temperature locally...75 F and up most of the 
time, and i got no AC....

Any advice on how to proceed from here given my sorry set of circumstances 
would be greatly appreciated?!?

-norm prince-
GA, USA (land of the second mirror learning curve) 


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