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Thread: Exposure Units

  1. #1

    Join Date
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    Default Exposure Units

    I am looking into buying a new kind of exposure unit and from my research i have found like dozen diffrent kinds. So what kind should i get i need sumtin decent not highly over priced but im willing to spend money or even build one. Also it would have to be able to burn bigger screens ( up to 25x36)with good detail...what do u guys suggest

  2. #2
    Platinum Rich's Avatar

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    Mar 2002
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    Default

    metal halide-single point light source.

  3. #3

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    Default

    Quote Originally Posted by Platinum Rich
    metal halide-single point light source.
    do u mean like a foto light becasue i have one but i thought i should up grade to sumtin better or is that good enough its using 250 watt photoflood bulb

  4. #4
    BTS's Avatar

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    Get a 500 or 1000 Watt metal halide light. Will cost you about $300 or so for that, but there is nothing that will give you better burns bar the sun.

    Do you already have a box?

  5. #5

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    the sun burning method seems compicated from what i read how do u guys do it

  6. #6
    Premium Member
    Andymac's Avatar

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    Default

    Quote Originally Posted by mickg53
    the sun burning method seems compicated from what i read how do u guys do it
    foam pad to fit inside screen, thicker that frame. black cloth or paper on foam

    coated screen face down on pad so it is suspended

    posi face down on screen

    glass on positive, weights down posi/screen onto pad

    Hold square to sun.

    depending on emulsion and mesh color and location on the earth/strength of sun, exposure takes from 30 sec-90 seconds in full sun, longer when overcast.

    wash out with waterspray with garden hose or in washout tub.

    I use a light integrator to time the exposure although we did a few last weekend in a course with a watch, cause the lady wanted to do it at home and see how it would work. took 90 seconds on white mesh, it was cloudy, but had a bit of a shadow.

    I am at 50 d. latitude.
    Andymac

    services www.squeegeeville.com
    equipment www.tmiscreenprinting.com

    Todo es empezar.

  7. #7
    Premium Member
    DenisMutter's Avatar


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    Very Near Dayton, Ohio y'all
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    Default

    old skool
    API Local, Member 025 - Hack For Life!
    http://www.fnharsh.com
    http://fnharshdesign.bigcartel.com/

  8. #8
    Premium Member
    Andymac's Avatar

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    aint never going back to my...
    Andymac

    services www.squeegeeville.com
    equipment www.tmiscreenprinting.com

    Todo es empezar.

  9. #9
    necro's Avatar

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    amazing..not one person said, "check previous posts..there's a cornacopia of info"...

  10. #10

    Default

    metal halid or the sun. you NEED a good exposure unit, otherwise your screens will suck ass.

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