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Old 07-05-2017, 01:58 AM #17
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Default Re: Budget laser to play around and light stuff on fire?

Quote:
Originally Posted by Benm View Post

As for setting things on fire: for any visibly laser that can light a match you can safely assume it will do irreversible damage when it shines directly into someones eye. 10 years ago power levels like 200 mW made people uneasy, and whilst much more powerful lasers are on the market today, they are just as dangerous as they were back then.

Thinking otherwise is logic similar to assuming that it takes a tank shell to kill someone, so shooting a 20 year old handgun at your head could not do that much harm.
^That's a very good point Benm made right there. 200mW's by today's standard wouldn't be considered very powerful since we have easy access to lasers that can do 1W no problem, but the dangers are still very real, and if no precautions are taken will give you a lesson you'll need to deal with for the rest of your life.

I would consider starting at a lower power, and gradually working your way up.

-Alex


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Old 07-05-2017, 07:19 AM #18
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Exclamation Re: Budget laser to play around and light stuff on fire?

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Originally Posted by paul1598419 View Post
Who, over the age of 8, wants to burn ants? I can't believe the amount of time and trouble spent on this silly thread.
Exactly, what is the point of killing innocent living creatures? Just enjoynment of killing? I would not say if they are pests, but here more effective methods exist. If OP has these uses of high powered lasers, I would strongly suggest to wait until he is mature enough to get a laser. The accident likelihood might be very high if the user of laser does not pay enough respect and is not responsible enough - what seems to be the case here to me. Really no reason to hurry. You might get magnifying glass for burning experiments, although responsibility is required, it is not that dangerous as laser is in hands of irresponsible person. If you are not able to handle gun, you are not able to handle high powered laser.
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Old 07-06-2017, 02:17 AM #19
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Default Re: Budget laser to play around and light stuff on fire?

Christ! What's with all the presumptuous posts here? Someone asked me for an example of what I might want to burn to gauge the laser power that I would need and I answered the question with precisely that context in mind: to give you an idea of the power rating of the laser I want (at least). I wasn't actually giving an exhaustive list of everything I wanted to do, just an example of the power I wanted. Mainly I just wanted to learn laser specs (how much X amount of power is supposed to cost and how powerful that rating is).
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Old 07-06-2017, 03:22 AM #20
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Default Re: Budget laser to play around and light stuff on fire?

All those ridiculous units at that site you posted are way over rated, impossibly over rated and way expensive for what you will get, at least go with a good seller if you are not going to build your own, but first buy some decent yet affordable laser safety glasses here > Safety Goggles
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Old 07-06-2017, 03:29 AM #21
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Default Re: Budget laser to play around and light stuff on fire?

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Originally Posted by diachi View Post
No, that power rating is fake. There are no 30W lasers in that form factor. More likely to be 1-2W, and at that power it is overpriced.

AVOID HTPOW.

Please see this thread: GUIDE: Which company should I buy from?
I think your 2 watt estimate is very optimistic for a Gatling host laser. Maybe 1 watt at most and 4X what it should cost. Never buy from any place that claims to be official military anything. It's a scam.
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Old 07-06-2017, 09:28 AM #22
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Default Re: Budget laser to play around and light stuff on fire?

Yep, 0.8-1W seems more reasonable. But it is possible that they may have started including m140's although unlikely.
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
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Bang good is a good source for many electrical items and are often cheap and reliable.
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For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
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Old 07-06-2017, 10:23 AM #23
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Default Re: Budget laser to play around and light stuff on fire?

Quote:
Originally Posted by vassock View Post
Christ! What's with all the presumptuous posts here? Someone asked me for an example of what I might want to burn to gauge the laser power that I would need and I answered the question with precisely that context in mind: to give you an idea of the power rating of the laser I want (at least). I wasn't actually giving an exhaustive list of everything I wanted to do, just an example of the power I wanted. Mainly I just wanted to learn laser specs (how much X amount of power is supposed to cost and how powerful that rating is).
Not really presumtions, that's statistics, you follow common pattern of those ignorant people with lack of inteligence and/or responsibility to be recommended to get any laser (or trolls, whatever they usually get ban soon). That does not mean you are one of them and I'm not even saying that to make it clear. Just take it easy here, this hobby is very specific as law developement makes it harder to perform for those responsible and missuse of lasers has significant influence on this. So, behaving like one of morons makes you boxed in the moron category. (Really burning ants is not a good example to start with especially as point no. 1. - it is like showing red flag to bull. )

Whatever, I believe you can enjoy lasers, just listen and learn here, noone here will give you bad advice intentionally.

Regarding IR laser - definitely get something visible, you cannot even guess how it will bounce from something or hit something you do not want to burn if you do not see it. With visible laser you can adjust it faster than you burn curtain or something, also there is less likelihood you forget it on and put your glasses off. Seriously start with something of lower power (class 3B), even those cheap blue possible reach 1 W are very bright. Once you will see awesome laser beam of high power, you will likely want to use it to shine around, do some more experiments (laser light is very specific and awesome stuff can be done with it), not only to burn - so here class 3B (like 100 mW green recommended above) is very useful and versatile. To burn paper or cardboard, you will need extreme powers to put them in open fire, however even class 3B might leave a burn mark (especially at top of power limit of class 3B). Problem is with white paper (black marker dot might be needed) and with certain colors (green laser will not burn green paper well, but red will go fast). But if the white paper is not really thick, it can be done - my Evo burns even cigarette paper, when I light my cigarette with it (therefore not just darker tobacco at the open end), with focussing lens there is no problem to engrave cardboard. Also I would not recommend something at the edge of the visible spectre (like 405 nm - violet), these seems to be very dim, but there is a huge power in them. My 500 mW 405 nm looks like stronger pointer, but definitely it puts power of class 4 laser and has incredible burning effects. It is like "mostly invisible" laser. With blue-green (depending on day or night vision adaptation) you get the most visibility, therefore you might recognize it is too bright to watch and be somehow more safe.

Regarding heat generation at distance 2-3 meters - you will likely need some optics (magnifying glass for example) at that place unless you have high powers. Or if you have good beam specs like 100 - 200 mW might be sufficient - my 473 nm laser (you might check my review - link in my signature) is able to light up cigarette even 4 meters far (even it is "low" power - the beam is excelent, so it does not spreads too much and is able to burn far).
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Right now -> Enjoying Colours of Ostrava music festival.
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"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro (Review)
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Ordered & shipped:
532 nm | 1.4+ W | Optotronics RPL-II

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 07-06-2017 at 02:54 PM.
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