When you are making DIY printed circuit boards, one of the popular methods requires UV exposure. Many systems use lamps that can give off lots of heat and be expensive to replace. Djhamer has provided plans to make a UV LED system that is double sided so that you can expose double sided PDBs without having to flip and repeat half way through the process.
"A UV exposure box is an extremely useful piece of kit. It can be used to make proper PCB’s. It can also be used to make other things such as intricate photo etched parts (a subject for another instructable). The trouble is they can be a little pricey for the hobby enthusiast especially if you want the double side type.
Why use LEDs?
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