Re: [ATM] Ready for polishing?

[<lenses@adelphia.net>]

Rich,
Your ready to go, we don't go any further than 9 micron here on 90% of our jobs.

I have gone as far down as 1 micron grinding before polish, just took a lot longer grinding, and keeping things real clean becomes very apparent when your that fine.

So, make yourself a pitch lap and start polishing.

Peter Nance, Jr.
lenses@adelphia.net

> 
> From: "Rich Ball" <ShooterBall@hotmail.com>
> Date: 2004/11/05 Fri AM 11:36:42 PST> To: "ATM List" <atm@atmlist.net>
> Subject: [ATM] Ready for polishing?
> 
> Mentors,
> 
> On my way to finishing the glass-on-glass part of mirror-making I ran out of
> 6 micron grit.  A friend gave me some 9 micron and 3 micron in its place.
> (8" f4.5 project, Pyrex blanks).
> 
> I have finished 8 wets of 12 micron and 8 wets of 9 micron and the finish
> looks marvelous, lustrous and smooth.    Can I go to pitch lap at this point
> or do I need one grade finer?  Tex says that powders as fine as 3 micron
> will not take out all the coarser pits and will leave pits that will take as
> long to polish out as if the 3 micron had not been employed.
> 
> What's the voice of experience?  If I need 6 micron I'll have to take the
> time to send away for it.
> 
> Rich Ball
> Oak Park
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 

_______________________________________________
ATM mailing list http://www.atmlist.net/