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FiddleCaver wrote:MOST IMPRESSIVE!!! Hah, I use epoxy to glue everything, and never thought about using it to encase my electronics. That's so freaking simple. My light has 12 screws holding 2 plexi lenses against O-rings, a magnetic reed switch, a plug from sure seal, and a battery encased in a flexible rubber sort of like the sten... All to ensure waterproofness, and I still worry about just how "waterproof" it really is. I guess you don't have to wonder about that though. Good work.
I am curious about your regulators, I've been wanting to design one based on an op-amp or a microcontroller but I just haven't had the time to sit down and mess with it.
Ralph E. Powers wrote:I'm thinking the only way to test water-proofness is the ole' bathtub test... get one of your lights (that you can spare) and turn it on and drop it in your tub of water and leave it for a little while. Then slosh it around a bit.
Either that or drop it in the washing machine and give it the ole' soak and banging around test.
emesine wrote:Here are plans to make the 500 lumen version. I'm still working out the details of the linear regulator for the 1000 lumen version. I've made two that work (based on a 334 chip), but EEs that I know shake their heads and groan when they see the schematic. I'm going to publish a good regulator (based on an op-amp) when I get the details ironed out. Allen, I suspect you want to see the schematic I am working on- I'd be happy to send it to you so you can fiddle with it. I'm pretty sure it will work, but I haven't actually built it yet!
Happy light building
http://www.emesine.com/light.pdf
Andrew
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