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Re: Perforating For A Cass

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Posted by Rick Crockett/">Rick Crockett on December 28, 1999 09:45:29 UTC

: The typical way is to use a pipe of the correct diameter (the hole is going to be bigger than the pipe) and using grit, start grinding a hole into the glass. Do most of the hole from the back and then finish up on the front. You put a dam of something (putty is usually mentioned) and be sure that you don't scratch the finished mirror! The Ingalls ATM books give a nice description of exactly how to do this.

AND do it before final grind...

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