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4.4W 445nm dual diode laser

Re: Worlds most powerful handheld 4.4W 445nm

ARGLaser said:
Yup, but now I can buy a lathe to make more lasers :)
Click to expand...

Well now finally a canadian can make stuff for me on the lathe :D

Ive got a few things I need made ;) let me know once you get it :D
 





Re: Worlds most powerful handheld 4.4W 445nm

AnthoT said:
Well now finally a canadian can make stuff for me on the lathe :D

Ive got a few things I need made ;) let me know once you get it :D
Click to expand...

Okay :) I'll have to practice first though, I've only used a lathe once, and that was a few years ago :p
 
Re: Worlds most powerful handheld 4.4W 445nm

You can practice on my stuff :D
 
Re: Worlds most powerful handheld 4.4W 445nm

just saw this! big congratulations on your perseverance and skill throughout this project. you should be proud, hat's off to you:drool:
 
Re: Worlds most powerful handheld 4.4W 445nm

cheech226 said:
just saw this! big congratulations on your perseverance and skill throughout this project. you should be proud, hat's off to you:drool:
Click to expand...

Thanks Ceech! :)
 
Re: Worlds most powerful handheld 4.4W 445nm

Sweet build.. This is what I want to attempt.. Great job!
 
Re: Worlds most powerful handheld 4.4W 445nm

in the future id like to commission you next build. an improved version with an adjustable focusing lens for burning. and a red pilot beam for knowing where the beam will strike.
 
Re: Worlds most powerful handheld 4.4W 445nm

WOW! What a beast of a laser!
Great video.
I love it that people are willing to push to make something just a little more powerful or more efficient always thinking about the design and the end results.

Another epic laser build.

Thank you for sharing that. I have nothing but inspiration from your build.

:drool:

:thanks:
 
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Re: Worlds most powerful handheld 4.4W 445nm

Thanks! :)


trussmonkey25 said:
in the future id like to commission you next build. an improved version with an adjustable focusing lens for burning. and a red pilot beam for knowing where the beam will strike.
Click to expand...

A laser to guide a laser? :p
 
Re: Worlds most powerful handheld 4.4W 445nm

Guess it could be done, it would be better with a 5mW green laser. Brighter and tighter divergence. It would add extra bulk onto the optics tray if it comes out of the same aperture, and then there would have to be a side clicky for operating the 445nm.
It would be easier to just mount it above the aperture, then the beam would be a little down of where the green is shining.
It's a good idea since the 4.4W will burn/mark anything it makes contact with.
 
Re: Worlds most powerful handheld 4.4W 445nm

Hmm. Well, from the same aperture would be awesome... so you know exactly where you're aiming.

A separate aperture for the target laser would work too, except that you would only be able to align it to be accurate at a specific distance. Not that it matters for a pointer.

IMHO a red beam would be a lot more badass though :eg:
 
Re: Worlds most powerful handheld 4.4W 445nm

Excellent job! :drool:

you could do a quad with two of these builds going into one cube.. :angel:
 
Re: Worlds most powerful handheld 4.4W 445nm

Hargak said:
Excellent job! :drool:

you could do a quad with two of these builds going into one cube.. :angel:
Click to expand...

Wish I could, but if you shine the output of one PBS into another PBS it will split the beam.

If I were to do a quad build the diodes would likely be aligned like this : : and the top row would be knife edged with the bottom ones, then the output of both of the knife edges would be combined in a cube.

More than two diodes creates more alignment, a larger beam with knife edging, a lot more expensive and a lot more heat. Two diodes is simple :cool:
 
Re: Worlds most powerful handheld 4.4W 445nm

Agreed, is the cube split related to polarization? if so can't that be changed with the pbs optics or another filter.. I know it really is best with two :)

I looked at doing a dual build with a pbs cube a while back with a peltier but I couldn't find another diode to go with my freak diode that was putting out 1.4 watts with 700ma input :gun:
 
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