You are entitled to your opinion when you see someone, but you are not entitled to sexually harass a women just because she's "dressing slutty", especially since it's a super fucking subjective quantifier.

Also, you're a complete moron if you stop at a person's appearance in a meeting, some of the most important stuff I've had to say was the morning after I spent a straight night working on something. You better be god damned sure what I have to say will rock your world if I come in a meeting with a coffee stain on my shirt and my sleeves rolled up.

As a member of the know paid shill forum something awful dot com, with ties to the popular bitcoin blog buttcoin.org, I can confirm that we are paid by the bankers to keep y'all down.

OP updated to reflect page going down.

Ha, a fitting end to the thread.


It's been drop shipped from whatever cheap Chinese he ordered it from, the sender's address is of no use.

Not cost efficient:
http://www.ijens.org/vol_11_i_06/118006-3535-ijmme-ijens.pdf

Also the setup you'd need to work on a 4*8 or whatever surface goes beyond the usual hobbyist stuff unfortunately.

For a moment I thought that was real.

You're funny.

You aren't allowed to import them. I could very possible make it through because of declaration abuse or mislabelling. If found it's seized and destroyed.

Once it's on your desk, in your home, it's fine. Owning it isn't the issue at that point, using it is.

If you use the thing inside your home and take sufficient steps to secure it's use, awesome, no one will know.

Going outside though, there lies the problem.

Using a laser above class 3a as a pointing device goes against 21 CFR 1040.11(b) and 1040.11(c). Since I have no clue where you live, figure out your own state/county/city restrictions that hook into this.

You need to request a variance 21 CFR 1010.4 in theory since you cannot be designated as using a laser pointer, but rather you're operating as a demonstration laser user, aka operating a laser light show.

Since you are no longer acting as an individual with a laser pointer, surprise motherfucker, OSHA comes a-knocking. OSHA technical manual section III Chapter 6 will explain all the various new obligations that you, the end user, have to follow. Table III:6-9 will give you an insight into the wide variety of exciting and expensive engineered controls required for operating a class 4 laser.

You might also want to contact the FAA to verify what's the classification for the sky above where you want to use your laser. Class G means you don't have to worry too much, but as you scale towards class A you might want to ask more questions re: usual flight plans.

You don't seem to understand the power a 2W laser packs. PPE not really necessary if you're "very careful" and basically only a recommendation? There is no MPE with class 4 lasers, but heh, you can just ignore that. Still waiting on you to explain to me how you'll keep yourself and those around you safe, especially with regards to IR bleed through.

Now, with all this, if you don't understand how you can get slapped by anything between public nuisance charge and felonious assault, depending on the recklessness you show, the injuries you inflict and the rest of the context of any incident bound to happen unless you take that 2W laser extremely fucking seriously, I don't know what to tell you.

At no point have said that these lasers are illegal.

The FDA said that, bunch of freedom hating commies.



Oops. You also have further regulatory compliance issues such as the obligation to have a keyed interlock on Class 3B an above lasers and a bunch of other things cheap Chinese lasers don't implement.

Can your ridiculous laser make it through customs? It's quite possible, especially if the shipper bullshits his way through form 2877 in the importation process. Of course it's going to have a non-compliant class 3a sticker on it, just in case.

However since May 2014 both the FDA and the CBP are ramping up compliance checks. There are currently 89 companies and 100 originating addresses have been redlisted with regards to laser exportation misconduct.

Right now 21CFR1005.3 only states that your shit is going to get seized so whatever I guess. There is legislation being debated and a serious ramp up in enforcement.

http://www.fda.gov/downloads/MedicalDevices/DeviceRegulationandGuidance/GuidanceDocuments/UCM395499.pdf
http://media.ca8.uscourts.gov/opndir/14/06/132728P.pdf
http://www.fbi.gov/news/pressrel/press-releases/fbi-launches-national-campaign-to-address-laser-threat-to-aircraft

Now please amuse me further by explaining what "proper care" means.

Here a great opportunity to show off all that research you done did about lasers!

How do you plan to address the 1064nm leakage coming from improper or absent filtering after Q-switching the original emission via it's non-linear KTP crystal, without the use of wavelength specific PPE or the use of your blink reflex, in a context of high divergence scattering?

Feel free to put the phrase "localized ocular explosive boiling" somewhere in your reply.

TIA

I might have misconstrued the bit about your family and the beach as intent to use it in a public place with other people present. Then again, the bits about using it in a self-defence context and not really needing PPE while using a huge fuck off class 4 laser tell me you don't actually understand safe handling of these things.

But whatever, FUD FUD FUD, it's not like the obviously knowledgeable people in this thread have any kind of actual experience in the safe handling of these things. Nah, the reason why were advising ANSI Z136 compliance is because we're fuddy duddies.

You go right on with your plans to toy around with something that can cause immediate blindness a mile away. All you need to do is be really careful, because a beach doesn't combine huge bodies of reflective liquid, near unlimited horizontal range and the presence of plenty of people.

You can also feel free to ignore the following legal mumbo jumbo, because really, you've firmly established you won't get into any trouble.

Of course using a 2W laser as a pointer is ok, ignore the FDA!
21 CFR 1040.10
21 CFR 1040.11

Of course you know all the flight paths of all the planes, ignore the US code!
HR386

Beyond that, ignore the vast amount of state specific industrial regulations, ownership and usage regulations and any number of relevant jurisprudence cases regarding the negligent use of whatever. Again, it's not like your 2W laser has a miles and miles of range at a power level that can cause irreparable bodily harm.

Also anyone in charge of applying OSHA regulation anywhere is actually secret Hitler.

Have fun!

Enjoy your blindness and/or multiple felonious assault charges.

If I might ask, what is your intended use for such a powerful laser?

And as a quick addendum, Nd:YAG lasers in 532nm don't have a whole bunch of uses beyond being the most practical wavelength for high visibility applications. At 88% efficiency from the optimal 555nm frequency it has the very cool advantage of allowing for decent usability (ie a laser pointer) in a very modest power output footprint (ideally <1mW to stay around class 2, or <5mW for 2B).

Actual industrial uses require you to kick up the output by several orders of magnitude into the low kW range, aka death star levels of power.

For the laser router I mentioned above, something else entirely is required like a CO2 laser. At 30-40mw it's still a class 4 laser, but it'll allow you to make cuts at a massively more reasonable power level.

http://www.synrad.com/vseries/v_series.pdf

What can you use the lasers advertised for sale here for? Pretty much nothing, at least safely. A fixed unit with proper heat management, actual interlocks and much less accidental changes in orientation could be used for a bunch of things. A handheld model is not only less safe, but makes serious compromises in output stability/power management/heat management/bunch of other stuff to be mobile and self-contained.

Fucking seriously, a 2W 532nm as sold here has the power to cause immediate and permanent retinal damage, if not outright blindness, and a ridiculous range up to like a mile and a half. It'll cause a degressive amounts of hopefully temporary blindness or partial vision loss (ie day/week long) up to 5-7 miles.

Beyond that, it's visible up to like 50 miles, so who knows where it'll end up.

Using that kind of output outside of a really, really controlled environment with mass amounts of redundant safety measures is criminally negligent at best. You will cause harm to someone.

There are a bunch of actual legitimate use cases for stupid powerful lasers, aka class 4s.

Laser medicine has a whole bunch of uses:
http://en.wikipedia.org/wiki/Laser_medicine
Don't try these at home.

There are many different applications in manufacturing:
http://en.wikipedia.org/wiki/Laser_beam_machining
http://en.wikipedia.org/wiki/Laser_cutting
There's potential home use here; a relatively benign application is a 2D router laser cutter. Personally I'd start out with something a bit easier like putting a dremel in there, lasers add a legit scary fire hazard to the equation. Containment is also a high priority, because you need to make sure that a stray reflection is in no way putting your eyes (or other people's) at risk.

This brings us to our first PPE side note; ANSI Z136, learn it, love it.
http://en.wikipedia.org/wiki/Laser_safety#Regulations

Quick primer on PPE:
http://en.wikipedia.org/wiki/Laser_safety#Safety_measures
You want wavelenght and power specific eye protection in all cases with class 3B or above laser, and skin protection for class 4.

You want quality, certified PPE. For example, lower class 4 lasers would make me consider at least OD6 protection to cover accidental exposure:
http://www.lasersafety.com/eyewear/polycarbonate/p5e01

Prolonged exposure, higher power and other variables will affect the OD rating required. You are also required to put in similarly rated material in any aperture or viewing window on your laser cutting table.

DO NOT TRUST YOUR SAFETY OR THE SAFETY OF THOSE AROUND YOU BY USING CHEAP, UNCERTIFIED PPE OR OTHER SAFETY EQUIPMENT. If you are unsure of what you need, join a relevant forum and ask for resources and advice.

Beyond that there are plenty of other uses for lasers, but the need for a class 4 laser is debatable at best. A class 3 or even 2B will be plenty for the amateur science dabbler. Same goes for any sane astronomy uses. Definitively stick to class 2B for presentations or messing around with your pets.

Beyond that, just going outside at night with a modest 5mW green laser is tons of fun, so long as you stay courteous to anyone else around you, aka not fucking pointing the beams at people to scare them as certain people *cough*the idiot seller*cough* suggest.

When you've gotten a feel for the various safety issues and what specific project you want to take on, then you build up. Just going 5mW->10mW gives you an appreciable gain in performance, but as you approach 100mW you need to start to seriously think about containment because you have a beam that is an imminent health hazard at short range and a possible distraction tens of miles out.

Going out and just getting a big fuck off class 4 laser without a) a specific application, b) a functional understanding of safety issues and PPE, and c) actual use of proper PPE is beyond insane.

Add to that a whole bunch of issues you have no idea even exists, such as how much IR you laser is spilling. Cheaper models will even have unaligned/ineffective/straight up absent IR filter, which means you could potentially be putting out an order of magnitude more power than you expected, and if your PPE doesn't account for this secondary output wavelength you are in imminent danger.

I could go on and on but tl;dr if you don't know what you're doing, grab a 5mW 532nm green laser to play around with, join a laser enthusiast community and build up from there.

^^ These two are saying wise words.

Unless you have good reason to want to own a class 4 laser and proper PPE/installations, buying one "just for fun" means you are a complete and utter fucktard.




Jesus. Fucking. Christ.

What kind of eye protection are you selling alongside with these lasers?

http://www.lulu.com/

First of literally hundreds of hits when googling "self publish book".

There's no reason why anyone should have to give dank money directly.

Ok, so we agree that not all form of work are contrary to your beliefs, again I'm sure you could find like-ish minded people in a small business, a non-profit or a community project.

There's tons of stuff out there for you to do that will have a positive impact on the world. Working with a small independant farmer, landscaper or social outreach programs. Volunteering at a soup kitchen or to plant trees.

You really need to get out of the mindset that you have to have 6 layers of management above you in a big faceless corporation and look for a place where you can fit well.

Even if it's just a part time thing, try it, it'll be an experience and you'll still have time to play your guitar plenty. You'll also need to rely on others less, and it'll show your parents you can take care of yourself.

As for the rest, seems like your viewing of the Matrix really left an impression on you, and I'd advise against putting yourself in a situation where you get shot at. Shouldn't your powers scale, logically? If you got one of your friends to punch you in the face, shouldn't you be able to prevent it?

I'm not saying this because I want you to get hurt, but you might want to try your theory with less consequences if you're wrong. You know, just in case.

If the punch connects, would that open your mind to the possibility that maybe, just maybe your assertion about reality might not be perfect?

What's your living situation right now, are you crashing at a friend's house?