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Re: [ATM] Mirror cell

Try drilling and countersinking a hole for the screw and then use two 
nuts on the back, and lock the nuts together but leave a little slack so 
the screw can still more a bit in the bar.  Countersink the screw deep 
enough so that when its locked it does not protrude above the bar.  I 
also placed a rubber grommit or washer under the screw to add some 
resilience so the bar finds its proper level.

Adeildo Sombra wrote:

>Hello all.
>
>I'm polishing an 8" f/6 mirror using plate glass 19mm thick and need some help to make a mirror cell. 
>I thought in a cell with six point, using three bars. 
>What should I use to connect the middle point of the metal bar to the screw, because it can't be tight. 
>
>Thanks.
>Adeildo.
>
>
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