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Thread: laser cutting styrofoam

  1. #1

    laser cutting styrofoam

    Has anyone cut styrofoam, i tried cut very nicely about a 1/2 in after that it was all blown out,wondering if i could cut letters out or glider bodies

  2. #2
    Join Date
    Feb 2007
    Location
    Alabama
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    2,395
    Stan, I cut it sometimes, but the edges look weird. I guess it's the heat that does it. I have cut some of the blue stuff that is actually insulation board and it does pretty well. White stuff doesn't do as well.
    Epilog Legend EXT36-40watt, Corel X4, Canon iPF8000 44" printer,Photoshop CS6, Ioline plotter, Hotronix Swinger Heat Press, Ricoh GX e3300 Sublimation

  3. #3
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  4. #4
    Join Date
    Nov 2006
    Location
    Innisfil Ontario Canada
    Posts
    4,019
    I cut some packing materials from 1" styrofoam, mostly for cutting holes to hold glassware. The beam spread over the inch still allows for full penetration, and the resulting taper of the cut helps to wedge in the glasses for a firm fit.
    Epilog 24TT(somewhere between 35-45 watts), CorelX4, Photograv(the old one, it works!), HotStamping, Pantograph, Vulcanizer, PolymerPlatemaker, Sandblasting Cabinet, and a 30 year collection of Assorted 'Junque'

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  5. #5
    I've cut depron. I use 3 passes. One for the top 'skin', one for the core, one for the bottom 'skin'. Best results that way. I actually use different settings for the skin passes and the core. If you use a thick core multiple passes there are advised.

    You'll want to fiddle about with your settings, particularly speed and frequency to get a cut without melting the crap out of everything.
    Laser Engraver: Epilog Legend 24TT 35-watt
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