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Nichia NUBM44 in L2 Host

Cenobite9

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Here is my latest... a Nichia NUBM44 at ~6.8 watts housed in a Solar Force L2 host via a custom heat sink module from JayRob. This one was a pain in the butt to build as I had to undo a lot of Jordan's beautiful solder connections to install the module and driver into the heat sink module. I had to very carefully round the corners of the driver with a file and then do some heavy Dremel work on the heat sink to get the driver to fit flat inside the designated driver area so it could be thermally attached to the heat sink module. I didn't take any pictures while I was working (I was too focused on getting the driver to fit) but here is the finished laser and an example of the damage it could do with a ~2 second laser burst.

The laser almost immediately burned through a blue business card and then put a nice black dimple on my wall. The card also caught fire so I had to rush it too the sink and dowse it with water. I put it back in its original spot to take the picture.

Sorry, no beam shots since I do not have protective eyewear anymore. I am going to have to get some really good laser goggles for this one.
 

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Alaskan

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Nice girl, car and laser, what more could a man need?
 

GSS

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It looks like a big focus knob I think?
 

DTR

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Great build. Glad to hear you got it all squeezed in there. The L2 is an awesome host. Very solid. Here are a couple I have had from Jay in the past myself.:beer:


p1015963.jpg

p1017840.jpg

p1018564.jpg
 

Pman

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Nice. Yeah, get glasses ASAP. Pay for appropriate strength as what we used to be able to get away with is probably not rated high enough now.
I like that host in the last pic J
 
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HydroSean

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How long is your typical duty cycle for these 4.5 Amp NUBM44 diodes? I ran mine at 4.5 Amps in a 35mm copper module for about 30 seconds and it got very hot. I figure since I'm getting it in a 25mm copper module I will shorten to less than 20 seconds every 5 minutes.
 

BowtieGuy

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Nice girl, car and laser, what more could a man need?

Yep, Alaskan pretty much covered all the important stuff, with some good safety advice from Pman!
Honestly though, that's a real clean looking build; I've always liked the look of Solar Force hosts.

BTW, "Let the Solar Force be with you"! :crackup:
:gj:
 
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