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Thread: Failed attempt to drill a hole in tempered glass panel - GIF

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    Jon
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    Supporting Member Frank S's Avatar
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    now he can replace it with plexigalss

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    Supporting Member VinnieL's Avatar
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    I remember in high school wood class when we made walnut steeple clocks someone brought in a flat piece of glass to be cut for the clock.

    We all suspected it was safety glass but there was no markings. So I scored it with the cutter and it wouldn't break. I turned it over and scored the reverse side and it still wouldn't break. The teacher came over and said he had read the sometimes quickly flashing a torch over the glass would make it break. So he lit up the acetylene torch and moved very quickly along the lines. The glass exploded and blew chunks all over all of us.. Yep, it was safety glass.....

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    Supporting Member hemmjo's Avatar
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    Glass is fascinating stuff. In school I worked at a "junk yard", complete with a mean junk yard dog. Learned so much removing good parts from wrecked cars. One time a car came in, locked, no keys. Had to get in it to get the heater blower. Did not have a SlimJim door opener in my "yard buggy" I figured I would just toss a steel wheel against the glass it would break. I am not a little guy, but I was never able to toss that wheel hard enough to break that glass.

    A lot of physics in play there; tempered glass, round edges on the wheel, the glass able to move just enough in the frame to reduce the impact stress.

    One smack from a little ball peen hammer did the trick.

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    je l'essaye sur la porte d'un magasin..:en colère:



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