Re: [ATM] Polishing to a sphere

[Gilbert Gagne <ggagne@clearwire.net>]

Bill Kelley wrote:

>   "I would suggest a 4-line Ronchigram outside of focus. ( it's easier 
> to see TDE with lines outside of focus)"

Bill,
I thought my turned edge had gone but a Ronchigram outside of focus 
brought it back!
http://www.atmlist.net/contrib/ggagne-at-clearwire-dot-net/14-4out.jpg

I also took a Ronchigram with only one line showing, per Ken Hunter, and 
it shows roughness and a slight central depression.
http://www.atmlist.net/contrib/ggagne-at-clearwire-dot-net/114-1bar.jpg

My next step is to redo the lap with softer pitch to work with these 
cooler FL winter temperatures.
Thanks to everyone for the helpful comments.

Gil Gagne
Port Orange, FL

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