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File: round cutout.jpg (1.75 MB, 4032x3024)
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I want to replace my existing thermostat with a PID. The existing cutout is 42mm in diameter and I need a 45mm square. The panel is 1/4" thick tempered glass. What is the best way to "square the circle" without cracking or shattering the existing panel?
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>>2002435
>best way
fuck off with your best way questions.
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>>2002435
replace the whole glass panel with a sheet steel panel
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>>2002435
>the best way
Re-melt the whole pane to be the shape you want, then temper it. It's also the only viable way, as far as I know.
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>>2002435
the best way? build a square mount that fits in the existing holes and sits a little proud, as far as the knob to the right, and put your new components in there.

you can't cut tempered glass. it will crumble.
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>>2002435
you need a diamond scoring tool, just etch a few mm deep into the glass on both sides and then snap it off with pliers
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>>2002561
It's not plate glass, it's almost certainly tempered. it would shatter.
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>>2002473
Unironically the best option if OP is determined to not just mount another box on top and plug that hole.
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>>2002582
yeah but I wanted him to try it anyway
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tie a square of rope around the panel and soak it in alcohol and burn it
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grind it out with a dremel and a diamond tool



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