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  1. #1
    Ty G

    Ground Glass / lexan, plexi

    I know someone out there has done this. Ever tried to grind lexan or plexi for a ground glass viewing screen? I am working on a 20x24 and figured that would be great to help prevent possible breakage. If you have done this, how "bad" is the image quality?

  2. #2
    Steve Smith's Avatar
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    Lexan is available with a fine textured surface which I have used in place of ground glass.


    Steve.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

  3. #3
    Rick A's Avatar
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    I have an 18"x24" GG made from quarter inch plate glass, its pretty durable.
    Rick A
    Argentum aevum

  4. #4

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    I haven't tried grinding any glass myself, but both my 8x10 and 12x20 have plexi glass screens. They are bright, durable and don't break like glass. They are great.

    Gary
    Build a man a fire and he will be warm for hours.
    Set a man on fire and he will be warm for the rest of his life.

    Sic gorgiamus allos subjectatos nunc.

  5. #5
    Ian Grant's Avatar
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    Quote Originally Posted by Steve Smith View Post
    Lexan is available with a fine textured surface which I have used in place of ground glass.

    Steve.
    Where from ? (In the UK)

    Ian

  6. #6
    Steve Smith's Avatar
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    Quote Originally Posted by Ian Grant View Post
    Where from ? (In the UK)
    Cadillac: http://www.cadillacplastic.co.uk/

    Plastic Technology Service Ltd: http://www.ptsuk.com/ - Polycarbonate here: http://www.ptsuk.com/longhua.html (PC813F).

    A similar product but in polyester is available from Autotype/McDermid: http://www.macdermidautotype.com/

    We only use these materials up to 0.25mm which is a bit too thin for focusing screen use (although I have used it) but most are available at least up to 1.5mm.


    Steve.
    Last edited by Steve Smith; 04-12-2010 at 05:57 AM. Click to view previous post history.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

  7. #7

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    I'm pretty sure that glass is not ground but sand blasted or etched. You might want to check with a glass crafter or leaded glass supply house in your area.
    Bob

  8. #8
    Ian Grant's Avatar
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    Quote Originally Posted by Shutterbob View Post
    I'm pretty sure that glass is not ground but sand blasted or etched. You might want to check with a glass crafter or leaded glass supply house in your area.
    Bob
    Bob it's either Ground or Etched using Hydrofluoric acid, but grinding gives the best results. Welcome to APUG BTW.

    Ian

  9. #9

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    Need 4 X 5 Ground Glass

    Hi. Looking to buy 4 X 5 ground glass for my Toyo Field Camera. The Satin Snow source seems to be gone. Anyone have a source for it now?
    Thanks, Todd F.

  10. #10
    Ian Grant's Avatar
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    Brilliant Glass, Stephen Hopf hope I spelt his name right sells on Ebay from the US, excellent glass at good prices.

    Ian

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