Homebrew PCBs

Tom,

You can find pictures of the LED based exposure unit I built in the 
files section of the group.

Honestly, these days I really would no longer bother building one with 
tubes especially considering the truly low prices of sources like 
besthongkong.com

(Note, I'm not related to them. Just bought 1'000 UV leds for ~$120.- 
and I'm happy with them)

Markus

Tom Van den Bon schrieb:
>
> Hi There,
>
> I've been creating my own pcb's for a while now using photosensitive
> boards and a uv light. My current uv light consists of a old scanner
> with three uv tubes in it. I'm currently looking to rebuild it and i
> found this website :
>
> http://www.prototrains.com/etch2/uv1.html 
> <http://www.prototrains.com/etch2/uv1.html>
>
> This looks like a nice unit, but I don't understand what the grid
> between the light and the boards are for? Won't it break the light
> going to the board ?
>
> Any other ideas on possible improvements for a uv exposure unit while
> I'm redesigning?
>
> Thanks,
> Tom
>
>