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NUBM44 Handheld Build - Stainless steel

ElectricPlasma

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Wow okay so this turned out a lot better than I was expecting. I had originally traded a member for a NUBM44 project box build, and long story short I used the module from this build:


Image taken by Crazlaser, who traded the build with me

This is basically a win-win because I can use the rest of the box build as a test setup for other modules and the 44 modules for the handheld.

What happened for the most part was I was actually just screwing around with a bit of stainless tubing I found in the shop, and had an idea to put a 532nm module in it. After turning the notches in the front of the body I noticed that the inner diameter might be able to house the 20mm nubm44 module from the box build.

Turns out it was actually ~18.5mm, though I bored out the front section to a little under 20mm and press fit it into the tube with a contact board. After testing that I went ahead and made a tailcap for it, and at this point was when I thought to put the BE on it. The BE adapter stuck out a little which looked a bit weird so I made a "filler" ring out of copper which also acted as a focus ring for the main lens and filled the gap between the expander and the body. This worked out flawlessly. :beer:

Turns out that the best projects really are unplanned ones.

The only thing that really isn't good about this build is the duty cycle, it'll comfortably go to a minute but nothing past a minute and a half. Not only is stainless not the best heat conductor but the walls of the tubing ended up being pretty thin.

Here's some final shots, I didn't take many shots of the machining process because I had no idea it would be such a build.






Thanks for reading! :D
-E.P.
 

BowtieGuy

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Oh yeah, very nice results EP, she's a beauty!
That 3X BE looks as if it's made for this host.
:gj: +rep
 

BobMc

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Wow! "Flawless" is the right word:gj:. Really like the copper ring, gives the build just enough color. Nice, very!
 

ElectricPlasma

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Thanks everyone, and for the reps too! It's been far too long since I built a handheld host for myself so I thought I'd go for the opportunity and make something nice :wave:
 

Crazlaser

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Wow Electricplasma! That's awesome. The beam expander is a super nice touch to that diode and the host is really clean looking. I'm glad you're able to use the box as a test box, that's a great idea, I never even thought of that. :thinking: :) +10
How long did it take to make the host? Also what batteries does the host fit, and what's burning range like the with BE?

btw, the 3 watt is still going good, was just using it tonight!
 
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ElectricPlasma

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Wow Electricplasma! That's awesome. The beam expander is a super nice touch to that diode and the host is really clean looking. I'm glad you're able to use the box as a test box, that's a great idea, I never even thought of that. :thinking: :) +10
How long did it take to make the host? Also what batteries does the host fit, and what's burning range like the with BE?

btw, the 3 watt is still going good, was just using it tonight!
Thanks! I'm even adapting the XYZ mount to work with 12mm modules as well and using a set screw + alligator clips for quickly swapping. I thought it suited well as a test setup. :D

The host was more of a side project than anything so I didn't dedicate time specifically to it, but I worked on it over the span of about a week. Great to hear the Silver Series is still holding up!!
 
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That is one great looking host, I really like the intergraded 3xBE, Seeing your host makes me wish I still had a machine shop at my disposal 24/7 like I use to have.......
 
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How centered in the beam expander is your beam and with the highly divergent fast axis is there any clipping of it going into the BE ?
Wow okay so this turned out a lot better than I was expecting. I had originally traded a member for a NUBM44 project box build, and long story short I used the module from this build:


Image taken by Crazlaser, who traded the build with me

This is basically a win-win because I can use the rest of the box build as a test setup for other modules and the 44 modules for the handheld.

What happened for the most part was I was actually just screwing around with a bit of stainless tubing I found in the shop, and had an idea to put a 532nm module in it. After turning the notches in the front of the body I noticed that the inner diameter might be able to house the 20mm nubm44 module from the box build.

Turns out it was actually ~18.5mm, though I bored out the front section to a little under 20mm and press fit it into the tube with a contact board. After testing that I went ahead and made a tailcap for it, and at this point was when I thought to put the BE on it. The BE adapter stuck out a little which looked a bit weird so I made a "filler" ring out of copper which also acted as a focus ring for the main lens and filled the gap between the expander and the body. This worked out flawlessly. :beer:

Turns out that the best projects really are unplanned ones.

The only thing that really isn't good about this build is the duty cycle, it'll comfortably go to a minute but nothing past a minute and a half. Not only is stainless not the best heat conductor but the walls of the tubing ended up being pretty thin.

Here's some final shots, I didn't take many shots of the machining process because I had no idea it would be such a build.






Thanks for reading! :D
-E.P.
 

RedCowboy

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What are the threads of the 3X BE?
I just bought a M11 x 0.5 tap and that's not it, nor is it any of the 12mm taps. It's like maybe 11.25mm or the SAE equivalent.
 
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Dang I hate that ! can you email them and ask what size it is ?



What are the threads of the 3X BE?
I just bought a M11 x 0.5 tap and that's not it, nor is it any of the 12mm taps. It's like maybe 11.25mm or the SAE equivalent.
 
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CynicalBrad

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Very nice looking build. Love the integrated beam expander and the way the host seems to flow nicely despite having a 3x expander. Will +rep when at a keyboard tonight.
 
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I believe ElectricPlasma built this laser from scratch he should know what the thread size is on the BE ?
 

RedCowboy

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I think he ( EP ) said he used the adaptor, I have asked sanwu but they gave me the wrong size twice, its not any pitch 0.5, 0.75, 1.0 in either M11 or M12, It looks very much like a 0.5 pitch but the diameter is around 10.25mm, so either it's a custom threading or a SAE

I will have to take it by a machine shop and see if they can match it or tell me if it's some custom tooling.

I can do a workaround with an adaptor or make a pocket and drill divots for set screws, or tap the back where it's flat, I used a jam nut on my moped muffler, but I wanted to use 1/4 inch stock so I could put in 4 corner set screws to fine tune the alignment, but there is so little to work with I have to mount with a jam nut to thin material and attach that to the 1/4 inch with the center drilled out, all that when simply having the right tap would be so much easier.

 

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I think he ( EP ) said he used the adaptor, I have asked sanwu but they gave me the wrong size twice, its not any pitch 0.5, 0.75, 1.0 in either M11 or M12, It looks very much like a 0.5 pitch but the diameter is around 10.25mm, so either it's a custom threading or a SAE

I will have to take it by a machine shop and see if they can match it or tell me if it's some custom tooling.
Oh man if it's a one off and not a regular thread that would not be cool of sanwu and I have to said it would kind of tic me off !
 




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