Re: [ATM] First Pitch Lap - any tips?

[vorblesnak@peak.org]

> I know Richard may have a stroke when I share this
> with you all, but here goes:

It takes alot of strokes to make a good mirror.

>
> I make pitch squares as outlined in Texereau then
> stick each one to the tool.  I have tried precoating

I have done this also, and it works. Though I felt like I was
having to handle the pitch twice.  This also brings up the
question, do the facets have to be square?  When I did a
lap with precast pitch I just broke off small pieces and
left gaps between them on the tool.  All of the shapes were
irregular.  It polished the mirror OK.

> The trimming is easier (IMO) as I start with channels
> which are quite wide.  The only problem encountered is
> having a square come loose.
>
> I use Burgundy Pitch.  As I work in a garage that is

Me too!  I was in a class recently and some of the kits came
with a yellowish material to use for laps.  It was softer I
think and I know two of the people in the class were having to
recut the facets at least once or twice a session.

David Davis
Toledo, OR
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