Re: Working the center

Bob Madden (madden@netcom.com)
Sun, 2 Jul 1995 19:01:36 -0700 (PDT)

On Mon, 3 Jul 1995, Bratislav Curcic wrote:

Wait a minute it is only Sunday here. I always know you guys were ahead of us.

> ):-{])) (Friendly Bob) wrote :
>
> > Hey I haven't tried the pencil test yet to see if the tool is stil making
> > good contact. I gotta goe do that.
>
> DON'T use pencil tests for a polished surface (I hope I'm not too
> late)!

You aren't and I won't. I was actually thinking about doing what you are describing below. I'm going to get at it in the morning. >
> For the tool contact tests : just look thru the back of the mirror while
> polishing. The squares in good contact will look very black and shiney,
> and you shouldn't see any polishing compound flow between the square and
> the surface of the mirror.
> If your mirror has ground back surface, smear it with water/glycerine,
> that will make it temporarily transparent.
>
> Bratislav
>

Thanks again Bratislav

Friendly Bob madden@netcom.com