Re: ATM Gugolz pitch

[Cary Chleborad <bennu@ns.net>]

Scott Rychnovsky wrote:
> 
> >
> >Oh, as long as I'm thinking about pitch, what's the best way to get off a
> >hunk of pitch when you don't want to melt down the whole piece? I ended up
> >just sawing small chunks off with a serrated kitchen knife.  But this was a
> >long, messy process.
> >
> 
> For my next mirror I was going to try the method outlined in Thompson: put
> a 1/8" rubber mask over the lubricated mirror, pour the pitch over it to
> fill the holes, and the slap the tool on top.  Supposidely you just flip it
> over, remove the mirror and peal off the rubber mask to get a perfect
> channeled lap.  It sounds too good to be true, so I thought I would try it.
> I just spent $ 0.89 at the local hardware store for one square foot of 1/8
> " rubber gasket material.
> 
> If anyone has experience with this method and would like to offer helpful
> tips I would appreciate it.
> 
> Scott

I could never get the procedure to work as described.  I pour the pitch
onto the tool, press the mirror on for a second, then I remove the
mirror and place the mat on the pitch (make sure tehat you really soap
the mat good).  Then I use the mirror to press the mat into the pitch. 
After the pitch cools enough I remove the mat and re-press.

-Cary Chleborad