Homebrew PCBs

I am wanting to try it. Will order a uv led next couple of days and try
some expsures etc. I saw the article on the UV Led light box in an
English mag and thats where I came up with the idea. May be simply able
to place in a tube and use a hole at the end with a pin hole.
 
For me, I have no time limit so if it did it over night, I would be
happy....
 
Regards, Peter

  _____  

From: Homebrew_PCBs@yahoogroups.com
[mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Paul Symansky
Sent: Monday, November 20, 2006 11:56 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] CNC and UV leds



That's an interesting idea... 

You can only focus UV light just as much as you can focus visible light,
but there are cheap lasers that emit light in the UV range. I believe
the lasers used in DVD players emit light in the UV range, but don't
quote me on that.

Paul Symansky
SymTech Labs, Sr. Project Coordinator
(954) 478-7285
http://www.symtechlabs.com <http://www.symtechlabs.com> 
paul.symansky@... <mailto:paul.symansky%40symtechlabs.com> 
----- Original Message ----- 
From: Peter May 
To: homebrew_pcbs@yahoogroups.com
<mailto:homebrew_pcbs%40yahoogroups.com>  
Sent: Saturday, November 18, 2006 9:24 PM
Subject: [Homebrew_PCBs] CNC and UV leds

Hi all.

I recently saw a few articles on using UV leds to expose photoresist
type boards and have to admit, I have tried various methods and am going
to try this one. I also did a quick search in this list archives before
starting this thread.

I was wondering in one could concentrate the UV light from a LED via a
lens like in the laser pointers and create a pin point uv light. Then,
in making a CNC type machine (yes I belong to the cnc groups as well)
use this method to simply draw the tracks onto the board directly. One
would have to create a test run every sop often but I wouldn't mind
seeing anyone elses posts if they have tried this.

Peter

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