Re: [ATM] Ball Scope First Light

[Jason Hissong <jhissong@gmail.com>]

Bob,

Here is the latest Ronchi image of the mirror.  I did go around the 
barrel with COC chordal strokes with tool on top.  I may have it wrong 
in regards to the TUE?  There is definately something going on with the 
edge (or the outer zones.)  The center of course needs some work.. but I 
want to make sure I get the edge taken care of first.

Outside radius of curvature.
http://www.undermidnight.com/images/atm/parabola_oroc.jpg

Thanks

Jason

Bob May wrote:

>A turne up edge can easily be fixed with the mirror on the bottom
>and a few chordal strokes to bring it down.  Don't do many
>strokes as you can easily go too far.  You're probablly in the 5
>to 10 strokes per session range, depending upon how fast your lap
>is working.
>Bob May
>bobmay at nethere.com
>http: slash /nav.to slash bobmay
>http: slash /bobmay dot astronomy.net
>Replace the obvious words with the proper character.
>
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"A long journey starts with the first step and an understanding spouse."
http://www.undermidnight.com - astronomy and astrophotography
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