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[ATM] figuring 10 inch mirror
Hi all,
It's been a while since I posted but have been making slow but steady
progress in both my mirror tube assembly and learning that I like gugolz 64
better then burgandy pitch!!
Now for my question. I have been figuring my mirror but have run into a
problem with my edge. Between using a mix of chordal strokes parabolizing and
1/3 coc strokes I've reduced my turned edge dramaticly. However I still have
some left and was wondering. Right now according to tex I'm at 1/4.6
wavefront at zone 1. If the turned edge is less then the 1/4 wave limit for
diffraction is it still a problem?
I am going to try to get rid of it completely but was just wondering...
Here's my foucault info for anybody interested.
10.25 mirror diameter
109.125 Radius of curvature
F/D 5.32
1.875 secondary minor axis
7 zones
h(m) info by zone
1.5305
2.4875
3.1405
3.6755
4.1410
4.5590
4.9415
Thanks for any info
Wayne Hilliard
--
Wayne Hilliard "If computers are making the world a global village,
KA1CXD FN32 and I can't figure out how to use one, does that
woodycxd@adelphia.net make me the global village idiot ?"
Shoe
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