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Shining straight up you probably want a minimum of 2W .. I've heard good things about "meirlight" lab lasers from eBay, as in 1W modules doing closer to 2W. I think Viasho also do high power, high quality DPSS greens around your pricerange.

And/or just damaging the device putting it in your pocket. Kinda dumb.

Never mind the fact it's on a blog, but when an article ends with "lol", I wouldn't even have it printed on my toilet paper. There's so many other explanations out there of what it could be, the fact you immediately assume other lifeforms, I'd be questioning who's actually in denial.

Hope you've got a beefy heatsink for that 317, the TO-220 version is only good for up to 1.5A and that's with a good heatsink.

If the tube is lasing at all, then there's enough voltage. Not enough current is the problem.

I'd have this thread up to 10 pages by now if I added all of mine, but: 1. People that let their cats roam the streets 2. People that go out for a social event and just sit on their phone 3. People that stand in the middle of a busy walkway and have a chat 4. People that slowly roll up to a...

Please just stop and buy a premade PSU, you can get them for a little over $100 shipped on eBay. Learning is good and all but learning on something where 1 error could kill you, you're not exactly doing yourself any favours.

They'll probably handle it fine but you reduce lifetime.

The C rating is per battery, so if you're feeding 600mAh into both then you're charging at 1C. Don't try and charge a lithium battery at anything over 1C unless it's specifically rated for it. What you've done will work, BUT, both of the batteries need to be at the exact same voltage (or within...

Never had much luck with using inverter NST's for drawing arcs - the plain ol transformer types are so much more forgiving and no protection crap either :D

The retina has no nerve endings, it is entirely possible to cause damage and not feel a thing. IR also does not trigger a blink reflex, so it is extremely easy to blind yourself with.

Because they were the only company that cared enough to blow enough smoke up their own ass to get them into a record book. I'd put $100 on the table right now that lasers of higher powers (yes, handhelds) have existed long before WL even came along. Getting themselves into a record book was...

Unless it goes airborne, meh.

Grounding in most places was basically an afterthought after the electrical distribution system was installed, neutral should theoretically play the role of ground, but it's still a separate wire that runs back to the transformer, usually right beside the live/hot wire. It's possible that both...

The show cards are total crap, but they get you started. Like DJZ said the connector is NOT a parallel port. If you want to use it you'll have to get/make a DAC.

I've run a 40W tube straight off a 15kV 30mA NST .. just stick a chunky ballast resistor in series to limit the current a bit. CO2 lasers are designed to run off DC as it helps circulate the gasses through the outer tube (with the catalyst in it), but they will run off AC without damage too...

New vid! E_gCMQdgBjc

Unfortunately my camera's sensor is tiny, so doesn't handle low light well. My pics are all coming out with a bunch of sensor noise :( This is probably the best moon pic I've taken with it:

Looks good already :D Going ...