[ATM] questions about the condition of this mirror
Roman Toledo
rtoledo2002 at yahoo.com
Sun Jul 8 16:08:58 JST 2007
Mark it looks like it's on the surface, that old saying "if you don't use
it you loose it" is at work here, I forgot some useful things I learned last
year and since I put it all away for a while I forgot them.
First mistake is I did not check the surface when I got it, mainly because
this mirror looked so smooth, it never occurred to me to look for sleeks. I got
up this morning and decided to polish out the back some more, and got it
looking really good but not 100%, I probably ended up adding some more sleeks
but i was very careful, for what ever reason I took apart a eyepiece t use a
loupe glass and inspected it and sure enough the scratches specially the one
that looks like a V or Y and bunch of others are on the top. the scratches
look like the Grand Canyon so fine grindind looks to me like 320? or a lot of
600?
So my dilema is I never made a fine grinding tool, I went straight to pitch
(73 modified with some linseed oil )so I may have to do one.
can I do a fine grind by using pads on top of pitch? and then discard it
and make a new pitch lap or should I just do what I think I know must be done,
make a new tool, and should I buy smooth porcelain tiles ?
Mark Holm thank you.
anyone please feel free to comment
PS: Greetings go out to Richard Schwartz and David Harbour have not seen much
in here from you gents lately
Regards
Roman
regards,
Roman Toledo
Celestron Nexstar GPS 9.25
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