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Thread: Sand Blasting Wedge of Crystal?

  1. #1
    Join Date
    Nov 2012
    Location
    North Yorkshire, UK
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    465

    Sand Blasting Wedge of Crystal?

    I have a “vertical wedge” of crystal to sandblast a large amount of text and a logo onto.
    Reverse engraved optical crystal is stunning, especially when using multiple layers. The problem I have is that I am not sure about reverse engraving a “wedge” in case the text etc is distorted when read from the front surface which is at an 80 degree angle compared to the rear 90 degree (vertical) surface. The base is 30mm deep and the top 8mm deep.
    Am I imagining a problem that does not exist? What do the rest of you do?
    Thanks very much, John

    Screen Shot 2017-08-25 at 18.16.38.png
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  2. #2
    I think you are imaging a problem. Print it on paper, put it behind it and see how it reads. I don't think it's going to be any issue at all.
    Lasers : Trotec Speedy 300 75W, Trotec Speedy 300 80W, Galvo Fiber Laser 20W
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  3. #3
    Join Date
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    Suwanee, GA
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    It will be fine. I have lasered/sandcarved, and UV printed quite of few of those.

  4. #4
    Join Date
    Nov 2012
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    465
    Thanks to both of you. Much appreciated

  5. #5
    Join Date
    Mar 2005
    Location
    Gig Harbor, WA
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    1,157
    Is your concern about how to level the surface so the item will laser flat. Or the optical effect of looking through a glass surface..

    .
    Mark
    In the Great Northwest!

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  6. #6
    Join Date
    Nov 2012
    Location
    North Yorkshire, UK
    Posts
    465
    Hi Mark, it was the possibility of optical distortion. I have done the masks now, so will sand blast this afternoon.
    Thanks and regards, John
    60w EFI 6090 & 100w Z4 Reci 6090 G Weike Lasers, 4 X 4 CNC Router
    CLTT using Oki C822dn & Adkins Press
    Glass Sandblasting, Woodwork Shop, etc...
    V Carve Pro v8 & Photo V Carve, Lasercut 5.3, Corel Draw 2017 on Windows 7 and iMac (via Parallels), etc

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