From: "Bob Walker" 
To: "ATM Group" 
Reply-To: "Bob Walker" 


I'm baffled.  Is making flats really that hard?  I've seen a lot of
correspondence between ATM's looking for flats of various sizes, and I've
seen what some of them cost.  Granted, it doesn't make much sense to make
your own 1.8" diagonal when you can buy one for $15, but what about
the larger ones?  Can figuring a 1/10 wave flat a few inches across be any
harder than figuring a 6"  (or 16" or 26"!) sphere or
paraboloid?  Texereau shows how to make a flat; doesn't look too tough.  Am
I missing somethig, or is making flats just considered  Boring?

 *  Best regards, Bob
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