Idea- Portable CO2 laser?

• Sep 25, 2012

• #17

Meatball

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Nope.

The beam stays pretty tight for a long distance. The large beam diameter might not be well focused, but it keeps divergence down.

 

• Sep 25, 2012

• #18

gillza

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Someone posted in another thread a link to a gas dynamic laser based prototype rifle. Now that would be interesting to build. Perhaps you could use batteries to power the heating element in the gas cylinder and water pump.

But you'd need to recover and refill the lost gas mixture

And yes: dangerous to you and others...

 

Last edited: Sep 25, 2012

• Sep 25, 2012

• #19

DashApple

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Without water cooling to the tube , Power will fall dramitcly , The proces the drives a co2 relies heavly on heat been removed , without it lasing will pritty much stop , and running the tube warm with water will still cause a decress in power output .

 

Last edited: Sep 25, 2012

• Sep 25, 2012

• #20

Arayan

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Just to know, here http://laserpointerforums.com/f39/fs-heat-exchanger-inverter-2-batteries-co2-laser-77250.html the batteries and inverter which I use for my 40W CO2 laser

 

Last edited: Sep 25, 2012

• Sep 26, 2012

• #21

Hemlock_Mike

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Use ZnSe lenses at this wavelength. They look
like gold glass.
HMike

 

• Sep 26, 2012

• #22

T

Things

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CO2 lasers lose power dramatically as you go above 25C or so, definitely wouldn't recommend running them without water unless your duty cycle is 0.5s on 5 mins off

 

• Oct 2, 2012

• #23

AUS

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How about a nice water cooled 830nm 7-Bar Stack High Power Cascade Vertical Array?
It will give you 60 to 2000 Watts if you can water cool it and find enough batteries to give you a few hundred amps at 2.2 volts

 

• Oct 2, 2012

• #24

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Gofilord

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2000W solid state?? Damn

 

• Oct 2, 2012

• #25

gillza

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2000$ US... Damn...

 

• Oct 2, 2012

• #26

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Gofilord

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How much cooling do you think it needs at max power?

 

• Oct 2, 2012

• #27

Cyparagon

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If you guys read the datasheet in the auction, you'd see the power is actually somewhere between 420 and 700W and since they're stacked, it'd be <100A at <15V. The minimum cooling is 1.5 lpm.

 

• Oct 2, 2012

• #28

DashApple

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if that is fitted with the 100W per bar , then its 114 A typical operating current at 2.1 V per bar

So 2.1 * 7 = 14.7 typical V drop over the 7 Bars at 114 A drive current .

114A*14.7 = 1675.8 Watts input , 700W output , gives 975.8 Watts as heat to be removed .


Bla Something like that anyway

 

Last edited: Oct 2, 2012

• Oct 2, 2012

• #29

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Gofilord

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*Where do I get a 100A and 2.1V?

 

• Oct 2, 2012

• #30

Cyparagon

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The 100A can be found at tires plus in the canned fruit aisle for $3.98 and the 2.1V can be ordered online at http://www.2.1V-R-us.com in the pancake section for $48 and a half point 3¾ and twenty-seventy millicents.

But you can sometimes get it on http://www.pay_attention_to_the_thread_next_time.com for cheaper.

 

• Oct 2, 2012

• #31

ARG

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Gofilord said:

*Where do I get a 100A and 2.1V?

Click to expand...

You trying to power a diode bar or something? You're going to need a bench PSU that can produce that current.

 

• Oct 2, 2012

• #32

AUS

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ARGLaser said:

You trying to power a diode bar or something? You're going to need a bench PSU that can produce that current.

Click to expand...

Yeah I was joking you'd probably never be able to carry something that needs a 1.6 KW power supply. I forgot about the voltage drop across each bar, so yes you would need 14 volts.

I was thinking it may be possible with lithium motorcycle batteries but these are only 12 volts and cost several thousand $. And they weigh about 30kg!