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Thread: Some gears and testing for laser-ablating and -marking ...

  1. #111
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    Quote Originally Posted by VDX View Post
    ... actually building/developing for another "laser-marking" project - but with a blue 6W-laserdiode instead of a fiber-laser ... meant for foam and some organic material
    Are you planning on cutting flesh like a Bond-villain or are you going down the “laser tattoo” route?? 😂

    David
    "Help, help, I'm being repressed!"

  2. #112
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    ... no harm of living beings (or their remnants) planned! - "organic material" is more for plastics in contrary to ceramics and metal

    Viktor
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  3. #113
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    ... and this is the "DIY"-collimator for the other end of the fiber ...

    Viktor
    Attached Thumbnails Attached Thumbnails DIY-Faser-Kollimatoren.jpg  

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  4. #114
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    ... some more "DIY" -- To connect the ends of the armoured hose "more professionally looking", I turned off two aluminium sleeves - an M6 sleeve at the entrance end and an M5 sleeve at the other end ...

    Viktor
    Attached Thumbnails Attached Thumbnails Panzerfaser-Enden.jpg  

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  5. #115
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    ... here one of my methodes for polishing the fiber ends - found a round piece of POM (Delrin), tapped with M5 ... here with thinserted and fixed fiber-holder for the exit end (without fiber, only for testing) ... after grinding test ... and while polishing -- works better, than comercial metal polishing pucks!

    Viktor
    Attached Thumbnails Attached Thumbnails POM-Schleifpuk-M5.jpg  

    POM-Schleifpuk-M5_schleifen.jpg  

    POM-Schleifpuk-M5_polieren.jpg  

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  6. #116
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    Thumbs up Brilliant idea!

    Astonishing results for such a low-tech solution, Viktor!

    Man, I wish you could come to SELEM and do a presentation for the group on all your engraving work. I *know* it would be well-received.

    Adam

  7. #117
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    ...sorry, someway remote in distance ... but on Saturday I'm on a "Laserfreak.net"-event near Nuremberg

    Here some bad and some good results for the "DIY-high-power" fiber - it seems, the used 2K-glue was too close in optical parameters to the glass core -- so caught too much of the energy and had to evaporate completely around the fiber, before the laser light could emit straight forward, instead of heating the end

    Viktor
    Attached Thumbnails Attached Thumbnails Faser poliert.jpg  

    Faser poliert_detail.jpg  

    Abgebrannt1.jpg  

    Abgebrannt4.jpg  

    Abgebrannt5.jpg  

    Abgebrannt6.jpg  

    Last edited by VDX; 05-01-2019 at 07:35.
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  8. #118
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    ... marking/engraving the back side of a glass tile "trough the glass"

    https://vimeo.com/334383563

    Viktor
    Aufruf zum Projekt "Müll-freie Meere" - https://reprap.org/forum/list.php?426
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  9. #119
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    Wait... You're not actually etching the glass, are you?

    Surely this is etching the back surface which is plated with metal, or plastic, or something like that, right? So you're etching that plated material?

    If you're actually etching the glass itself, how are you not causing any damage to the front face at the same time?

    Adam

  10. #120
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    Hi Adam,

    the glass (even the dark tinted glass-tiles) are transparent enough for the 1064nm ... did the same with blue 455nm diodes and glass and acrylic too

    And the focus is on the back-side, so even some dust on the surface won't burn in an crack it

    Viktor


    PS: - did the same last year with smaller surface coated glass tiles - here, it with a first pass evaporated the coating, and only in the second pass engraved the back side ...
    Attached Thumbnails Attached Thumbnails VDX-LaserWORX_ohneBlitz.jpg  

    VDX-LaserWORX_mitBlitz.jpg  

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