Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

3.5W Black Anodized C6 with Barrel Extension, 2X 18650

Joined
Sep 11, 2011
Messages
28
Points
0
There have been many of the "survival lasers stainless c6 + DTR 9mm diode" builds so far, but I've heard a common complaint:

THEY GET TOO HOT!

I don't like large hosts personally, and wanted to see if anything could be done about the heat.

For the build I used a black anodized C6 host from Survival Lasers, with their extension barrel to fit two 18650s. I'm using, big surprise, the DTR 2.3A X-Driver with a Copper Aixiz module and the G2 single-element lens.

The stainless hosts look fantastic, but they just don't move any heat away from the module. The body of an aluminum host like this is a fantastic radiator, you just have to provide a nice thermal path out of the heatsink.



I machined a custom copper heatsink, which seats the diode module via press-fit (with a touch of arctic silver) for best thermal contact.

In order to transfer heat from the heatsink to the host, the first thing that has to go is anodization! I used a boring bit to shave clean the inside of the head of the host, and applied LIBERAL quantities of thermal compound to the heatsink and the inside of the host before final assembly.

I also applied some compound to the threads that join the head of the host to the body (the radiator). Every bit of heat that you can evacuate from the heatsink is a bit that your diode doesn't have to deal with!

Some shots with a touch of smoke:




It looks photoshopped (like the WL promotional pics), but they aren't, I promise... I'm too lazy for that. :)

The laser takes about 1 minute to reach 90* F, measured with a laser thermometer. I'd call the duty cycle about 1 minute on, 2 off.

The entire body of the host warms up nicely, keeping the heatsink nice and cool. Just some simple tricks that really help!

I tried making some CD-case burning videos, but it just wants to set everything on fire!


These diodes are awesome, thanks to Survival Lasers and DTR.
 
Last edited:





kobi g

0
Joined
Oct 11, 2010
Messages
137
Points
18
Looks Cool,
Do you have a pic fo the machined copper heatsink?
Is it bigger then the small one that can bi fitted inside the C6?
 
Last edited:
Joined
Jan 8, 2009
Messages
3,145
Points
83
We want to see the guts... Did you lpm the unit it? 3.5W is very sweet. Good job.
 
Joined
Feb 23, 2012
Messages
1,282
Points
0
Love the aqua blue beamshots, what camera + settings are you using? :)
 
Joined
Sep 11, 2011
Messages
28
Points
0
I'd take it apart and show you guys, but I need a second person. The two small holes in the top of the heatsink are for a tool which holds it stationary while I unscrew the cap, so that wires don't get twisted. This requires 3 hands.

I left the smallest area possible at the base of the heatsink to accommodate the diode pins and wires (left as much copper as possible), so re-assembly is tedious.

If you're familiar with the VERY popular C-6 builds, you already know the general shape of this heatsink.

Here is a link to the camera settings for the photos.

 
Joined
Feb 23, 2012
Messages
1,282
Points
0
This photo doesn't seem to have any Exif data.

Hmm I can't seem to see the EXIF data for some reason? :(

Edit: I think it's the Droid Razr HD? :)
 
Last edited:
Joined
Feb 23, 2012
Messages
1,282
Points
0
Weird, I couldn't see anything before, but now I can.

Very nice pics once again! :)
 

Garoq

0
Joined
Aug 27, 2010
Messages
1,525
Points
83
Nice job, congrats! You got a good diode. :beer:
 




Top