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FrozenGate by Avery

17 watt laser built! burning some cardboard!

No, I was not wearing goggles. :o

BUT I had my face covered, and I was useing a video camera to see through. The camera I made these movies with has an IR filter on it, this tells you how powerfull this laser really is!! it is a scary laser, and I am getting goggles as soon as I get paid, but untill then, I think the camera is safe to look through, actually, I think this camera is probably safer than the goggles will be since it covers my entire face... I am EXTREMELY CAREFULL to make sure of the target, and all possible things that it may reflect from, also, what u dont see is the camera I am looking through, wich isnt the one Im useing to make these movies. If the laser is so powerfull it can burn through the camera with a reflected scattered beam, then what good would the goggles be? (wich it isnt, but I wish it was!)

Max
 





This is a very impressive laser! Where did you get the diode stack and power supply for it?

Perhaps it would be possible to mix in some green using a dichro or similar setup so you can actually see where you are pointing it at - i reckon the 915 nm spot is invisible to the eye even at this power level?
 
I got the diode off of ebay, and I got the power supply from bgmicro, I got a heck of a deal on the power supply, it was 27.00!! I have always used a video camera to see my lasers, I have never tried to see them with my eye...  and I would not want to with out very good goggles. Anyway, since I use a camera, I can see where im hitting just fine. And, by the way, im only running the diode at 20 amps, its 17 watt current is 27 amps. as soon as I get a better fan on the power supply, I can turn up the power.

Max
 
you can probably turn it up right now. You don't seem to run it long enough for the PS to overheat.
 
disma said:
I got the diode off of ebay, and I got the power supply from bgmicro, I got a heck of a deal on the power supply, it was 27.00!!

How much was the actual diode, and is the vendor still in business?
 
yes, the vender is still there, it was 250.00... I know it was a lot... and the beam is very hard to colimate, I still havnt found a suitable lens.

Max
 





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