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  1. #1
    EASmithV's Avatar
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    Grinding GG Glass to precise size?

    I bought a nice looking GG from China a while back. It has the markings for every roll film back format known to man, which is really nice. However, it was designed for a Wista / Toyo, so it needs about 1.5-2mm ground off either side to fit my Graflex.

    Does anyone have on tips on grinding glass? I was going to use the disc side of a belt sander with the finest size sandpaper I could find and a spray bottle of water.
    www.EASmithV.com

    "The camera is an instrument that teaches people how to see without a camera."— Dorothea Lange
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    RIP Kodachrome

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    Photo Engineer's Avatar
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    For that much you may need to use a glass cutter or the professional services of a glazier. That is a lot to grind off IMHO.

    PE

  3. #3

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    Or a 400 grit wet or dry sandpaper.
    Use it wet, It will take a little while <hr but trying to cut 1-2mm with a glass cutter needs some experience. It's not scoring the glass, it's how the hell do you grab that 2mm edge to snap it off?
    Heavily sedated for your protection.

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  5. #5

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    A belt sander will be fine, no water. The only difficulty is staying straight so hold it long ways against the middle of the sander. Do a 30 degree sand on one side, turn over and do a 30 degree sand on the other side and then a 90 degree sand between the two. Then test it and so on.
    "There are a great many things I am in doubt about at the moment, and I should consider myself favoured if you would kindly enlighten me. Signed, Doubtful, off to Canada." (BJP 1914).

    Regards
    Bill



 

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