Re: [ATM] Ball Scope First Light

[Jason Hissong <jhissong@gmail.com>]

Bob,

What do you mean by a spinning lap/strokes (trying to visual it.)  Took 
the scope out to view the moon.  I am finding the secondary can vibrate 
some when moving the scope.  The spider and secondary holder is made by 
meridian telescopes.

Thanks

Jason

Bob May wrote:

>Yep, a little bit of TUE!  You also have a hill in the center
>relative to the rest of the mirror surface.
>Work the center right, hopefully not getting the 70% sone too far
>down to where it is past a parabola and then tackle the edge wiht
>a good spinning lap and heavy edge pressure - one time around
>with about 20deg. change in direction per stroke.  Do watch for
>roughness tho although it shouldn't be hard to get the edge
>smooth with a light pressure on the edge.
>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."
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