[alt-photo] Re: UV Processing units

[Hellena Cleary]

I use a UV light source originally designed for the electronic industry for 
the production of copper plate PCB's.  I got mine from an electronics firm 
in Cambridge UK. It contains both light source and a very good vacuum. As I 
am not very DIY, it suits me very well. It eliminates the problem of too 
many variables. The only variable I have is the exposure. I do up to A3 size 
which I realize is small for some people but it suits me fine. This solution 
may suit some people. Hellena
----- Original Message ----- 
From: "Mark Nelson" <ender100 at aol.com>
To: <aschmitt at aandy.org>; "The alternative photographic processes mailing 
list" <alt-photo-process-list at lists.altphotolist.org>
Sent: Sunday, March 14, 2010 1:49 AM
Subject: [alt-photo] Re: UV Processing units


> Andy,
>
> Please let us know how they work out?
>
> Very curious!
>
> Mark Nelson
> www.PrecisionDigitalNegatives.com
> PDNPRint Forum @ Yahoo Groups
> www.MarkINelsonPhoto.com
>
> sent from my iPhonetypeDeviceThingy
>
> On Mar 13, 2010, at 10:58 AM, "Andy Schmitt" <awschmitt at verizon.net> 
> wrote:
>
>>
>> Hi all
>> While perusing "Instructables" I ran across a few references to people
>> making Printed Circuit boards with an exposure unit made of UV  LED's. 
>> This
>> peaked my curiosity & I went & purchased 400 UV LED's, resistors,  etc & 
>> am
>> slowly soldering together an exposure unit...If I ever get through  it I 
>> will
>> post back.
>> In case someone wants to steal my thunder & do it themselves [ 8o)) ]
>> Go to www.instructables.com & look up:
>> How to make a printed circuit board (PCB) using the UV light LED  method.
>> by JoeyJunior on July 5, 2009
>> (If you do, you need to tell us how it all comes out)
>>
>> If nothing else, this should be a da** site more portable than a 
>> flourcesent
>> unit.
>> Have a great weekend all
>> regards
>>
>> Andy Schmitt
>>           Photographer, Computerist, Slayer of Dragons
>>      All opinions expressed are mine...Unless otherwise stated or  REALLY
>> stupid
>>
>> Head of Photography, Peters Valley Craft Center
>> 2010 schedule available on line at:
>>    http://www.petersvalley.org/brochure/photography.pdf
>>
>>
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