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Making a portable CO2 laser?

Xray_Wombat

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May 27, 2019
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well...
worth resurrecting that topic for some art. A few light weight brass appointments, a 70 year old mA meter for tube current, and a little gothic touch here and there and you got a nice steampunk laser. Very authentic 80 Lb backpack as well.. but why skimp on batteries or go for short-duty stuff? Might get 2 hours of beam time from a 100AH 12V AGM. Coolant temp could become an issue as most of those tubes want 20-25 deg water.. chiller's not practical to carry. Palte cooled thermoelectric maybe but still it's a 400W heat load!
laser tag 40W_CO2--64.jpg
 
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diachi

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I for one don't fancy carrying around a >60lb lead acid battery. Not to mention everything else.
 

clay77

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I have tried myself something similar but nothing so i bought a new one from China
 

WizardG

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Not unless you have a heart condition. They only need 20-something mA, and the flyback would be current-limited to this value. 20mA will hurt a lot, but it's not lethal.



RF pumping is way less efficient than electrical pumping. Something like 5% for RF and 20% for electrical. Not ideal for battery power.



I looked it up, and the RF is 45MHz. The biological absorption profile and penetration depth is different at this frequency. It is also at less than half the power of a microwave magnetron. The energy is not directional like a magnetron is. The physiological dangers are therefore categorically quite a bit less.
I don't disagree with you very often Cyp', but that statement about the current limit on a flyback in a ZVS circuit......

I've built quite a few ZVS+flyback circuits and the higher power ones will do several hundred mA into an arc. The flyback will be destroyed in under a minute at those kinds of currents but that's plenty of time to electrocute yourself.
 

Unown (WILD)

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Well that was nearly 5 years ago. This thread was bumped by a newbie who may potentially be a returning banned member that just got banned for posting porn. Please keep in mind the dates in the future guys
 




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