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So my 3 modules came in, and to be honest, I'm not really sure what to do with them. They Screw apart and appear black with fin like things - like the front of the vaisho laser pointers, which I'm going to assume is to cool them down. Inside is a tiny hole, a spring, and something that looks...

I got some switches, 9volt battery clips, and larger resistors from the Radio Shack, and found out while soldering a Cree LED to a switch mechanism that soldering sometimes produces this smoky crap that smells awful, and generally shouldn't be inhaled. Normally this would be a no-brainer but...

Excellent! I'll order some of those tonight! edit: ordered 2 for reds and one for blue/violet to mess around with once I get the hang of it. When pressing in a diode, I presume it's the lens that isn't in fixed position. Olike has rectangle drivers, and some people have these round drivers...

I've got some red diodes to mess around specifically to build a lab laser before I try making a hand held, so I agree. Today i'm going to be messing with my bigger capacitors to see what they do with an LED, since the 47mF didn't appear to do anything. I still need to get heat sinks and some...

Sorry about mislabeling tools. My vice is one of those metal block things that looks like this: Table Vice I'm still learning about electrical components, and I got three new pots today; a 1k, a 5k, and a 10k. I couldn't get the LED to dim all the way off, but the dim/bright range was much...

So everyone is familiar with some kind of sound effects used for lasers or laser like devices. There's the sound of Star Trek phasers, the sound of Light saber feedback, the powering up of the Ghost buster proton Pack, and the classic "pew" sounds of most sci fi laser effects. I was wondering...

so in some sense, voltage is the sideways pressure on the walls of the pipes, and pipe diameter is related to ohms, but when your circuit piece has thin walls - i.e., low "forward" voltage, it's the weakest link, and likely to blow out. that makes me think wires have forward voltage. What is...

I totally get your analogy, I just have to "suspend my belief" that they aren't all moving at the same speed, or I could try imagining that goofy relativity equation where .999 light speed is way better than .99 light speed, even though to us its still basically the same thing. That or "Warp"...

man, I wish I wasn't in a summer session. (today's my last day), it prevents me from enrolling in an electronics class at a community college until next year, and I want to start making drivers so I can make a Christmas present. I'm still not sure why 9v or 12v of 200mA fries a diode where...

I tested out my other potentiometer and actually noticed some difference this time. I read up on pots and LED experiments and noticed my 25 Ohm pot is probably too little resistance to be noticeable. I think that's because my understanding of electricity is way off. I believed that ohms were...

I've been wracking my brain over this one for about a week now, trying to understand current, voltage, and resistance, and I'm still quite confused, despite all the LPF threads I read on the subject. I understand current is amps, and voltage/resistance = current. I understand voltage to be...

I was thinking of applying them directly to the surface of a hexagonal copper or aluminum exposed heat sink, so approximately 90mm x 50mm total, with six plates each 50mm X 15mm. Since I don't have stats (yet) on what sizes I could get custom, or how much power those sizes would take, I have no...

as long as my wallet isn't involved, I like to give people the benefit of the doubt, maybe that's because this is the year I got to see a flying car and a jet pack. 1300mW seems unlikely, but who knows... if nothing else, there's photoshop.

can a private citizen make a TEC or do I need some kind of industrial equipment? private citizen example: making a vice grip from scratch is possible with a mill, and doesn't require a factory. industrial example: making a microchip for a laptop requires a billion dollar research lab - not...

can the cold side of a peltier have fins? like for more surface area, or would that work?

nearest one to me is 90 miles + a toll fee both ways. I checked the other places for relatives, but its a similar story - about 100 miles in every direction. $50/month would go well toward tools, but if a person doesn't plan on doing this for 20 years, having access to $10,000+ worth of...

That makes sense. I personally have no idea how efficient TECs are so I was going with the idea that the TEC surface would make contact with an existing heat sink, and in theory, bleed off the heat much faster. As for a battery, I figured on using a longer host and probably connected to an...

ok, here's my first basic hex design, I don't really know much about heat sinks and lenses so Its crude. I've got three projects due by Monday for class so I was only able to spend a couple minutes rendering this. I can add more details where needed - this is just a screen shot.

I'll see if I can borrow my roommate's laptop to work up a model in Adobe Flash and render a png for display. Their semester just started though so they've been running around like a Mad Hatter. That link you provided says they do custom work, which means we might be able to design a crude...

my order for the LM317 and the Potentiometer came in, so now I have a bunch of LM317s and two huge pots. I also went to the hardware store and picked up a metal tool case for all this equipment, because it was overflowing. I was told I could have used a plastic tool box but the box might be...