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Selective Laser Sintering Patent Expiration Will Not Be a Game Changer | Industry Market Trends So 3D printing is basically the next big thing; kind of like 'Today' is 1995-1996 and we are talking about the Internet is the next big thing. At least, that's what I think, simply because I'm...

well, if you attach a laser to the scope mount, it should more or less adjust with your elevation. I'm not sure, but lasers are used as range finders and for calibration. A blue laser diverges at incredibly short ranges, so I just get the impression there may be a divergence approximating the...

good work sir! yu should know the first words to come out of my mouth upon seeing the readings were " holy***" " followed by "Wow...". I remember having quite a bit of trouble with the 405s and to me what you've done is a real milestone, at least to me it is! I agree on the scary price though...

Hi, it's been a while. Recently I've started getting into longer range shooting and was wondering what kinds of tactical laser builds (to be used as a rifle or pistol style laser sight) might be excellent for extreme ranges? And what's the farthest I can go with a domestic laser? I'm talking...

While I'm aware that green lasers like a Hercules hold their focus at a longer range and blue diverges quickly, I was wondering at what range do these blue lasers - the 1-2W 445's become relatively safe? additionally, I was wondering about whether it had more to do with diodes or the lens...

do you think something like aluminum fins on the hot side might allow it to dissipate heat faster? Sort of like you have a 40x40mm surface area that's getting cooled and an equal surface getting hot, but then you put a larger surface area on the hot side so it could lose heat faster? ive just...

On the internet I see a handful of high powered short duration flashes of laser light in seemingly compact designs that others apparently call "pulsed". I've also seen tasers produce ludicrous amounts of voltage and effective stunning power in a hand held device that betrays my understanding of...

I've never heard the "infinite focus" expression until today, but I usually focus using as much range - such as a wall - as I can, so that my beam is more like a pencil lead and less like a snow cone - at nearly any range. If you can burn a match across a room, I think you've got a pretty well...

for me, price was a major issue. The violets after all the tricky stuff you have to do with drivers, heat sinks, and unstable diodes meant they cost considerably more. I tested my wife's violet laser yesterday morning and this evening, and we discovered at night, the violet beam is very long and...

the color is going to be important. Some colors burn better than others. I don't know what colors those are, but I've heard Violets burn better than blue in terms of mW. Green is the most visible for the lowest amount of power, so if you want to do something stupid and illegal, it would be...

Agreed! his list needs that 1800mW on there :beer:

sometimes it is better to overpay by 50-100% and get things like working batteries, safety gear, and a device that actually works, than to step out into the deep blindly. $560 is a lot of money, but I've seen much worse prices and lower quality goods. 1.8mW isn't bad. I recently bought a host...

let me make it clear: This means the technology if adapted beyond the R&D range, will increase our access to otherwise obscure laser colors.

I really enjoyed the gradual increase and focus clips. It inspires me to purchase one of those variable power source deals.

What I don't get is why any reasonable person with awareness of things like Quasars and Cosmic Jets would think this thing could tear apart space. That's like the old people who used to think atomic bombs would ignite the atmosphere.

this reminds me of an old conspiracy about Soviet scientists using special frequency lasers to change the DNA of living organisms. Anu's post reminds me of another conspiracy about a Canadian researcher who made a white beam device for "healing". :thinking:

Tilting 'nanocups' double optical frequencies - physicsworld.com I think this technology could drastically improve our existing range of colors and the power we can get out of some of them.

my understanding of these devices is that they intend to cause vertigo and other forms of disorientation through variable strobe patterns, probably inspired by those old japanese cartoons that caused seizures. The problem I'm anticipating is taser ==> pacemaker ==> death phasr ==> epilepsy ==>...

I don't own a drill press and spent $300 last year to access one for a quarter in a class where I wasn't actually permitted to do anything on my own until I finished the class, but the class took so long that I only ended up with about a 45 minute window to do my own thing... After that...

Thank you for the instructions, but I have to ask, What tool does frame cutting? Is that a router? This thread is labeled "from nothing", and assumes you are explaining the procedure to someone with a large bank account and an empty apartment - including furniture, not a fully furnished tool...