how do I solder LED on to the board?
- Thread starter picard
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VidPro
Flashlight Enthusiast
the stuff around a cree is Often something to protect the reflectors from shorting the cree when they drop on top of it, because the reflector (metalacized pastic or real metal) will drop in and short the top of the cree "emitters" tiny board thing.
http://www.candlepowerforums.com/vb/showthread.php?t=190499
i bet StephanFS knows, cause he was making a pill before his even arrived.
http://www.candlepowerforums.com/vb/showthread.php?t=189222
here you can see the pill with the clear insulator on top of. WadeF
it looks like the cree emitter item, is on a small round "star" board, where to start would depend on the tools you have, and your replacement item , like i might start with a sledge hammer and a bandsaw and a blowtorch
others have more finesse , and could remove JUST the emitter top off the star board. star boards themselves are held down with completly different stuff in different things, and will come up easily in one piece , or just need a bigger sledge hammer
anyways, those are the people to ask.
http://www.candlepowerforums.com/vb/showthread.php?t=190499
i bet StephanFS knows, cause he was making a pill before his even arrived.
http://www.candlepowerforums.com/vb/showthread.php?t=189222
here you can see the pill with the clear insulator on top of. WadeF
it looks like the cree emitter item, is on a small round "star" board, where to start would depend on the tools you have, and your replacement item , like i might start with a sledge hammer and a bandsaw and a blowtorch
others have more finesse , and could remove JUST the emitter top off the star board. star boards themselves are held down with completly different stuff in different things, and will come up easily in one piece , or just need a bigger sledge hammer anyways, those are the people to ask.
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SCEMan
Flashlight Enthusiast
Much simpler to buy a new pill...
The material around the LED is probably to prevent shorts as VidPro said. If it's a hard material that's adhered to the board, it's epoxy. Getting that stuff off can be a chore and there's really no easy way to do it.
I'd reflow solder using a hot plate to change LEDs on star boards, but a layer of epoxy would complicate things.
I'd reflow solder using a hot plate to change LEDs on star boards, but a layer of epoxy would complicate things.
More expensive than an emitter, though.
VidPro
Flashlight Enthusiast
hence the blowtorch :huh: , really
as long as you can reconnect to the WIRES (there under any epoxy), and you only need the metal pill to survive the adventure.just BBQ it at 600* for 14 minutes , then wipe off the ashes , recover the heat sink thing, wash off the soot, and put in a new mini-star.
:hairpull: why did i use J&B weld anyway
by the way, it is a bad idea to do that Inside a house , even a tablespoon of electronics have a whole house of that smoke stuff they run on, and using a blowtorch lets all the magic smoke out of them at one time.
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