I’ve had some builds with builds that are overdriven but not by more then anyone else lots of copper heat sinking that start smoking is that the aa I’m using burning off or what help!
SMOKING IS BAD FOR YOU, Smoking flashlights is even worse
Very good to hear what you have on your mind
any oils/grease in that area will smoke off once heated up. There was actually a flashlight I remember somebody talking about that would smoke up and fog up the lens. Run the light without the lens and reflector and let it clear. As long as you aren’t smoking the LED, it is likely oil/grease heating up or any silicone in the thermal adhesive. You just need to determine if its the dome smoking and if it’s overdriven too much. IMO, Bad contact/thermal interface between the star and heatsink/pill would be the first place to look for causing the LED to smoke. Overdriven is #2. Other source would be grease, silicone, moisture, etc I mentioned above.
edit: Here is the thread about the same thing
What light is it sal?
Well it’s been a couple of a xpg2 s2 driven at5 amps with a massive heat sink and started smoking after 3 seconds on high never stopped till this day and a triple xpl on good chunk of copper on FET driver on high about same time still doing it but I’ve had others that don’t with same setup any suggestions
Maybe flux.
Something on the dome is the usual culprit for me when one smokes. Overdriven they go Poof! Silicone doesn’t burn at our levels, and I haven’t found AA to smoke even with the iron applied directly to it at 800º.
Oils from your finger or a spat of rosin on the dome (shield the dome when soldering wires) will be the most likely reason. I haven’t had it happen in a long time since I started shielding the dome, either with a small piece of 1/2” aluminum rod I have with a cut out to clear the dome or even just the silvery package the die came in. Foil will also work.
My .031 Kester solder wire will sometimes spit rosin, tiny little blobs of hot rosin that have an affinity for clear silicone domes. 