Re: ATM 8" kit received

[PFAFF2@delphi.com (Robert C. Pfaff)]

>Hi I've received my 8" mirror kit and a sq ft of Cera-Hex-Tol(TM) from W-B
>today.
>Now, I have two Duran-50 blanks (4.5" & 5") and two 8" pyrex blanks.
>Should I practice the 4"/5" first then proceed to the real job of 8"?
>
>Have anyone tried wth the Cera-Hex-Tol?  Is it good enough?  I'm going to
>see if similar things are available in local store.  Now the first step is
>to make a plaster tool with those tiles sticked on it, isn't it?  In using
>the tiles, do I need to keep the edges beveled?  What precautions should I
>take for such kind of tool?  Thanks for your help!
>
>dennis kung

Those Cera-Hex-Tol are just hex bathroom floor tile. I found them in
a large tile store for  half the WB price. No they were not
listed as "optical quailty "<G>

I like to keep about 1/8" groove between tiles. Makes the grooves
easier clean. I just bevel the outer circumference of the tool.
No need to bevel the inter grooves.  A tip after changing
coarse grit grades and with the tool very clean spray a little lacquar
in the grooves. This will stick any grit that may not have cleaned 
out. You don't want a 80 grit falling out of a groove when you
are doing 12 micron :-( I only do this when working the coarse grades of
of grit.

Bob Pfaff