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  1. #1

    Join Date
    Jan 2003
    Location
    Montreal Canada
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    0

    Default Any tips for building an exposing unit?

    Does anyone have any designs for a light table? I'm looking for a cheap but durable solution here. I'm looking for something a little more permanent than a piece of glass on sawhorses, but I don't want to have to sell my internal organs to make it. Any suggestons?

    If you could post schematics, offer advice, or direct me to a website, I would be forever in your debt.

    James

  2. #2
    andydiesel's Avatar

    Join Date
    Mar 2003
    Location
    Portland, Oregon
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    34,774
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    1376

    Default

    I usually just pull my pants down to expose my unit.

  3. #3
    jasoncross's Avatar

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    Mar 2002
    Location
    Austin
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    Default

    just do a search...I posted plans in the forums at the beginning of summer...if you cant find them ask user crodrodus (cord) he has some really good plans.

  4. #4
    jasoncross's Avatar

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    Mar 2002
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    Austin
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    Default

    andy, put that thing away!

  5. #5
    Premium Member
    Andymac's Avatar

    Join Date
    Aug 2003
    Location
    Van Isle BC Canada
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    11,697
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    Default

    this isn't as big as Stern's unit, but it works and is simple. Look on the other thread 'newbie', I just put up a pic of a simple exposure unit. here's another view:





    Here's the layers from top down:

    hang a 1000 watt metal halide grow lamp from the roof or set it on saw horses (sorry, couldn't resist)

    plate of glass over positive face down on screen

    positive

    screen with bottom facing up, frame sides hanging over foam pad

    2" foam cut to fit inside screen frame
    Andymac

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

    Todo es empezar.

  6. #6
    EdGossage's Avatar

    Join Date
    Jul 2003
    Location
    Norman, OK
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    3,615
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    Default

    Mine is based off of cords design. with a few modifications to make it work better for me. It cost like 250-300 bucks or somthing with all of the materials. I can burn a screen in 45 seconds.

  7. #7

  8. #8

    Join Date
    Nov 2004
    Location
    Montréal
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    7
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    0

    Default

    If you don't need a huge exposition unit, here's what I done.

    I found an old neon light rig that held 4 36" tubes, turned it around and built a wooden case around it. It came with only two ballasts (2 tubes per ballast) but was lucky enough that there was another smaller rig there so I took the ballast and wires in it. Then wired all the ballasts to a regular light switch, I baught a glass to cover it all and I put the whole thing on big 4x4 pieces of wood and voila! A sturdy and efficient light table that you can cover up to convert into a work table. Of course it won't be helpfull if you allready have bigger screens.

  9. #9
    colloquial's Avatar

    Join Date
    Nov 2004
    Location
    Milwaukee, next to all that beer and cheese.
    Posts
    54
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    9

    Default Would a 44-watt Halide suffice?

    I'm curious if a 400-watt metal halide light source would suffice.

    Something like this:
    http://cgi.ebay.com/ws/eBayISAPI.dll...850171682&rd=1

  10. #10
    Premium Member
    Andymac's Avatar

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    Aug 2003
    Location
    Van Isle BC Canada
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    Default

    Yeah, probably would work. 400 w is less output than 1000, so your time is going to be that much slower.

    If possible, find out the spectral output - not all MH lights are created equal - you want output in the 330-440 nanometer range for best results.

    If you are looking for cheap, Mercury Vapour lamps work as well, they are sold or used on farms as heat and light lamps.
    Andymac

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

    Todo es empezar.

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