'm just toying around with this idea at the moment. If I start using photo exposure PCB type production, I'm probably going to need a light box. I have tried using spray on photo-sensitive resist and exposure to the sun. It was a complete failure. Presensitised boards, and a light box seem the way to go. I haven't read much about this technique on the web, so I'm still a bit cautious.
Most commercial light boxes are very expensive. I think I should be able to put one together using a brief case, some UV CCFL tubes (or better still UV fluorescent), a μC, an LED display, a relay or two, a few switches, and a couple of pieces of glass.
Here's a couple of custom ones. ATM, Electronics Lab
,
ادامه مطلب |