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- Sep 11, 2011
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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.
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.
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