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Thread: Laser graffitti hits downtown LA

  1. #1
    Join Date
    Nov 2005
    Posts
    81

    Default Laser graffitti hits downtown LA

    Check out some pics from last weekend...

    (That building we were projecting onto was about 10 stories tall)

    http://www.flickr.com/photos/yowhath...topeace/page3/

  2. #2
    Join Date
    Jan 2007
    Posts
    248

    Default

    it's too slow to open that link. Will try later
    http://www.viasho.com
    wzc@viasho.com
    Whatsapp: +8613911142669

  3. #3
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Thumbs up

    NICE! The only thing I can suggest is to get better at drawing... I cannot imagine it being easy to draw on a ten storey building though.
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  4. #4
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,488,512

    Question

    So, the dot from the green laser pointer is tracked with a camera, and then the image is projected via a high power DLP video projector?

    Adam

  5. #5
    Join Date
    Jul 2007
    Location
    Brooklyn NYC
    Posts
    791

    Default

    yea buffo that's what it looks like to me as well

    its sold as a kit from keytec

    http://www.magictouch.com/ViewTouch.html



    John
    VJ AIWAZ

  6. #6
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,488,512

    Cool

    Cool. Thanks for the link John!

    Adam

  7. #7
    Join Date
    Nov 2005
    Posts
    81

    Default

    I hadn't seen the magictouch system. We were using the free software available here:

    http://muonics.net/blog/index.php?postid=15

    With some other info here:

    http://graffitiresearchlab.com/?page_id=76

    My setup used a 2000/4000 Watt inverter (hooked up to 2 cars in parallel), a 6500 lumen projector, a modded leadlight, a firewire webcam, and my macbook pro.

  8. #8
    Join Date
    Jan 2007
    Location
    Florida
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    4,382

    Default

    I can just imagine what a 20W and Pangolin would do..

  9. #9
    Join Date
    Jan 2006
    Location
    Charleston, SC
    Posts
    2,147,488,512

    Cool

    Not sure that a 20 watt laser projector would do you any good with that setup... The laser is only used for tracing the drawing. The actual graphic is displayed with a DLP projector. You wouldn't be able to get the "dripping paint" effect if you were using galvos and a laser. Oh, I suppose you could do a raster-scanned image using an AOM for your horizontal scan, but then you'd only have a couple degrees of scan angle to work with. Nah - DLP is the way to go there...

    Adam

  10. #10
    Join Date
    Jan 2007
    Location
    Florida
    Posts
    4,382

    Default

    What is the DLP's light source?

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