ATM Tool bottom-flatness

["Asaf S.-T." <dark_observer@yahoo.com>]

Hi,

Well I made two tools- one from Dental Stone & one
from Plaster of Paris. I chose the Dental Stone.

The Dental Stone tool is totally flta in the said that
will face the mirror and that will have the tiles, but
is lumpy on the side that it will sit down on the
grinding place.

I'm afraid that since the tool is not exactly in the
right angle (a straight one), then I might have
problems with the grinding. Will I?
===
Asaf S.-T., Amateur Astronomer and ATMer.
Please visit:  http://www.maxnm.com/asaf/
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