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FrozenGate by Avery

9mm 445 from 1913

djLscatt

djLscatt

0
Joined
Jul 8, 2012
Messages
103
Points
18
A friend of mine asked me to resurrect his old flashlight from 1913 and make a 445 laser.
here is what I did:

I use a 9mm 445 diode, thanks DTR.
a Xboost driver kindly range at 1.5A for a long life of the diode, thanks Clif and Lazereer.
a heatsink and focus, thanks Flaminpyro



4ij8ee.jpg

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firstly, i isolated the switch with the heat shink tubing for the negative contact.

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the driver is extra heatsinked

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the silicone wire is strictly solded between the switch and the driver

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here it goes.

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nice beamshot with a cotton bud :D

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LPM 2300 MW

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thanks for looking...
 





Wow. Great work there!!!

Some kind of aging on the aluminum heatsink would be great!

Seriously. Where he got that flashlight at? Pretty cool!!

Edit:
some aged laser labels would fit GREAT this host... Something like "prototype laser device" :crackup:
1913 is a bit soon for lasers to exist but anyways...
 
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Love that look man sweet. Try not to heatsink the induction coil that could possible spell trouble.
 
Quote from forum member Le Quack:

I wouldn't recommend putting any heatsink material onto the inductor... by adding metal, you're changing the properties of the inductor, increasing or decreasing the inductance. It can change how efficiently the driver works.

That and you're basically causing heat to the heatsink anyway, but not in the manner you're thinking of; the losses of the heatsink metal are a lot higher than the ferrite core, so the metal will basically "induction heat" itself without contributing anything positive to your pill...
Click to expand...

I could go into many others from past post.
 
jander6442 said:
Quote from forum member Le Quack:



I could go into many others from past post.
Click to expand...

Thanks. But me thinks a copper heatsink that small should make no difference there... :thinking: considering its permeability is 6milimu smaller than vacuum (0.999994 versus 1).... I think it should be completely negligible... :thinking: (considering some materials permeability used in inductors are high as 50kilomu)
I may be wrong tho...
 
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Leodahsan said:
Thanks. But me thinks a copper heatsink that small should make no difference there... :thinking: considering its permeability is 6milimu smaller than vacuum (0.999994 versus 1).... I think it should be completely negligible... :thinking: (considering some materials permeability used in inductors are high as 50kilomu)
I may be wrong tho...
Click to expand...

You could be right and it prolly will be ok, but the chunk is about as big as the inductor.:na:
 
Very nice build. Always love seeing these old school lights used as hosts.:beer:
 
thank you all of you

I didn't know I had to put a heatsink on the induction,I put a heatsink because it was too hot, that must be why I have only 1.5A instead of 1.9A max on the xboost
 
Great job! Those old hosts look fantastic and it looks like you put a lot of thought and effort into building it. Thanks for sharing +1 :beer:
 
Nice review, more pictures makes it all the better, great job on making this cool laser :gj: +4
 
Hey, nice build! Also a very efficient diode in my opinion! My 9mm at 2.4 amps was giving 2600mw :(

According to my calculations, of course, not accounting for the efficiency curve and whatnot, your diode at 2.3 amps should give out 3.5 watts!

This is, of course, probably not realistic, as i am leaving out many variables. I just did a quick amps to watts ratio and set the amps to 2.3.

Prob be more than 3 watts tho!

Good build!
:beer:
-Matt
 
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