Old 07-13-2011, 02:57 AM #1
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Default Laser burning power chart

Please fill this chart in as best as you can. Thanks

_____start match|pop balloon|see beam day|engrave plastic|engrave wood
405nm
445nm
532nm 100mw__50mw______.....________
650nm
808nm

Just give minimum amount when you can focus the laser.


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Old 07-13-2011, 03:03 AM #2
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Default Re: Laser burning power chart

Can you clean that chart up a bit first? I'm not sure where to begin with it.

Better yet, I'm sure there's a forum on here that already did this. Give me 2 minutes to find it.

EDIT:
I've found these: http://laserpointerforums.com/f45/do...t-51055-3.html (Read Pontiacg5's post)

and this: http://www.pveducation.org/pvcdrom/p...ergy-of-photon

BASICALLY, and with some exceptions, it sounds like violet lasers have the most burning potential, but the least visible potential (other than IR lasers. It really depends on what your pointing at.

I'm sure somebody else who understands your chart will come along and fill it in shortly. I just felt like I should contribute SOMETHING.
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Old 07-13-2011, 03:29 AM #3
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Default Re: Laser burning power chart

This wont work. You have way too many variables missing

true power
focus
distance
differences from one match or balloon to another
etc etc etc
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Old 07-13-2011, 03:37 AM #4
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Default Re: Laser burning power chart

If you measured the lasers using a lpm and they were focused as best as they could- basically best case scenario. From about 1 foot for the match and balloon
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Old 07-13-2011, 01:22 PM #5
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Default Re: Laser burning power chart

Quote:
Originally Posted by tthudium View Post
If you measured the lasers using a lpm and they were focused as best as they could- basically best case scenario. From about 1 foot for the match and balloon
You don't want to or need to tightly focus a Laser Beam to
get an accurate reading on a Laser Power Meter....

Tight focusing is only good to concentrate available beam
power to the smallest point... thereby increasing power
density..


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Old 07-13-2011, 03:58 PM #6
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Default Re: Laser burning power chart

Generally all colors burn the same. The power itself is the same.
What varies, is sensitivity of different materials to colors. Some materials are better burned with red, some with blue, some with infrared. Generally when the color of material and laser are similar, it wont burn well. So green wont be burned by green .. but will be burned well by red. Those are the basics.
But then are extreme colors. Infrared, and ultraviolet .. which can be used to 407, and even 445nm (blue and violet). You can't tell how materials will absorb these wavelengths by just looking at them. For example white paper. It's almost impossible to burn it with green or red. As for blues, some papers can be burned well .. some can't. Same for infrared. Generally 405 or infrared burns more materials .. but it's just hard to predict sometimes.
If you are into burning stuff, I'd say you start with 200mW red .. cheap, 'relatively' safe, can burn wood, CD case, match. Then after you feel you can handle such laser, you can move to 445nm, as it provides best power per money. But it's a lot more dangerous.
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Old 07-13-2011, 04:14 PM #7
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Default Re: Laser burning power chart

good intentions, bad delivery. We were all new once.
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