RE: ATM Unchanneled Lap Polishing

[Bob Prabowo <BOB@bahana.co.id>]

Mike you wrote:

> I can't say for sure, but I got my best polishing action from a
> massively
> microchanneled lap that was  achieved by making a crosshatch pattern
> on
     each facet with an Exacto (tm) knife.

Hmm, this is interesting. I have to remake my lap, for it's too hard.
And the first thing that came into mind is the channeling process. 

I'm polishing a 13" mirror, the question is: will unchanneled lap work
for a mirror this size? I will, of course, micro channel the lap first. 

Thanks,

Bob P. Sumitro
Jakarta, Indonesia

visit my still-under-construction astronomy and telescope making page:
http://www.geocities.com/CapeCanaveral/Hall/2670/