Author Topic: how do you hold detail on screens for DC printing?  (Read 3095 times)

Offline mimosatexas

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Re: how do you hold detail on screens for DC printing?
« Reply #15 on: October 14, 2013, 03:33:37 PM »
havent seen a good deal on one with multiple daily search for the last year and a half, or I would definitely buy one.  Closest so far was a 1k unit with a busted vacuum and blanket with holes for 800.  Why would i spend 800 bucks on the light source and still have to replace everything else, when I can buy the light for 200?


Offline Inkworks

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Re: how do you hold detail on screens for DC printing?
« Reply #16 on: October 14, 2013, 03:54:49 PM »
Convert a Nuarc FT 40 6K. 6000 watt MH Fliptop Plate maker, will take a 31 x 23 or larger, comes with integrator and is instant start so the bulb only runs when it's exposing. All you have to do is take out the rubber plate making blanket, cut an opening in the flip-top frame and put in a neoprene vacuum blanket with gasket.

6000 watt Metal Halide, ~ 24" from the screen, you'll be as fast as you want, and probably faster than you need. My 3K unit was as fast or faster than the LED times Alan was posting when he posted his testing results.

Regularly go for $500 or less.
Wishin' I was Fishin'

Offline mimosatexas

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Re: how do you hold detail on screens for DC printing?
« Reply #17 on: October 14, 2013, 05:18:43 PM »
where are you finding these for sale?  I just searched searchtempest and there arent any for sale in the whole country.

Offline Inkworks

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Re: how do you hold detail on screens for DC printing?
« Reply #18 on: October 14, 2013, 07:53:31 PM »
Ebay.
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Offline Evo

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Re: how do you hold detail on screens for DC printing?
« Reply #19 on: October 14, 2013, 09:26:47 PM »
With good films, and a good exposure unit, one should not have a need to adjust exposure times.
A properly exposed screen is a completely exposed screen.


DING!

Find an emulsion that holds the detail you're looking for at proper exposure. Yes, there is a difference. Dual cure is king here IMHO.

This means test, test and re-test.
There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply. The person who buys on price alone is this man's lawful prey.
John Ruskin (1819 - 1900)