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  1. #1
    Registered
    Join Date
    Jun 2008
    Posts
    30

    Glass engraving

    Which is best lens to use for etching or marking fine piece of glass ?
    I have a piece of glass , diameter 3mm and need to right down very small number on it.

  2. #2
    Company Representative
    Join Date
    Feb 2012
    Posts
    387

    glass

    Hi ,
    Usally we use 60w laser power with 50mm lens engraving and some time we place a piece of paper on it,to prevent the laser rays reflect,what is your opinion?
    Hope this can help you
    Best Regards
    Lucy Lee
    G.WEIKE LASER
    han@wklaser.com


    Quote Originally Posted by yasam2002 View Post
    Which is best lens to use for etching or marking fine piece of glass ?
    I have a piece of glass , diameter 3mm and need to right down very small number on it.
    Attached Thumbnails Attached Thumbnails glass.jpg   glass sample.jpg  

  3. #3
    Registered
    Join Date
    Aug 2012
    Posts
    46
    Using a wet paper towel over your glass when engraving could reducing the shattering of it and create higher precision result. (That what I've read anyway)

    I've also seen comment about combining Laser cutter and sand blasting to create deeper higher res result.

  4. #4
    You need a 1.5" lens to engrave this
    3mm is VERY small .. whatever lens you use , you will struggle to get lettering below 1mm that is crisp and readable on a 3mm diameter piece of glass , especially cos glass does not vaporise , it actually shatters due to thermal shock which leads to ill defined laser engraving.
    Rodney , Cape Town , South Africa
    www.tokerbros.co.za

  5. #5
    Registered
    Join Date
    Nov 2009
    Posts
    314
    With focus lens lower than 63.5 mm and laser tube lower than 80 W , it will give a good engraving work . Letters height of 1.5 mm are engraved on MDF as the picture .Glass and Acylic also will do . What's your opinion ?
    Attached Thumbnails Attached Thumbnails Engraving  letters height of 1.5mm .jpg  

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