Sway
Flashlight Enthusiast
Hi Gang,
I finished up a U-Bin Quad Lux this weekend with a little twist to the driver scheme. It uses 2 nFlex boards instead of 1 or 2 FatMen, each driving 2 LED's at 1000mA, both are controlled through the modified Mag switch. Power is supplied by 8AA NiMH cells in an 8toD holder all housed in a bored out Copper 2D Mag.
I talked this over with George before trying to control 2 boards with one switch and he said it should work but there was a chance of one board reacting to the signal faster than the other and getting out of sync resulting in the "dreaded hung board syndrome". Test on the bench went OK so the double nFlex switch was built and epoxied up.
Double nFlex switch
Stranded silver plate Teflon wire was used throughout and this gave me a chance to try out a thermal wire stripper that was acquired used through ebay. I must say it work very well and much faster at stripping Teflon than my cutting type stripper and there is less chance of cutting/nicking the wire. It takes a little to get the hang of at first but after that is was smooth sailing.
The LED's are UX1L's which are a little greenish on levels 1 and 2 above that they have a nice white color to them making me wonder why I have shied away from this tint variation for so long. Give them a try all of the T bins WO WA XO and YA I have received in the last year have been very nice when driven at or near spec unlike years ago.
I have encountered the dreaded hung board a few times since the light was put together, it only occurs when being turned off leaving 2 LED's burning but it's simple to clear by holding the switch down a few seconds then turn off as normal. After several hundred switch cycles it has done this 3 times, I can't make it happen using fast or slow presses it just happens /ubbthreads/images/graemlins/icon3.gif but not often enough to be a problem.
And yes it is bright /ubbthreads/images/graemlins/grin.gif
Later
Kelly
I finished up a U-Bin Quad Lux this weekend with a little twist to the driver scheme. It uses 2 nFlex boards instead of 1 or 2 FatMen, each driving 2 LED's at 1000mA, both are controlled through the modified Mag switch. Power is supplied by 8AA NiMH cells in an 8toD holder all housed in a bored out Copper 2D Mag.
I talked this over with George before trying to control 2 boards with one switch and he said it should work but there was a chance of one board reacting to the signal faster than the other and getting out of sync resulting in the "dreaded hung board syndrome". Test on the bench went OK so the double nFlex switch was built and epoxied up.
Double nFlex switch
Stranded silver plate Teflon wire was used throughout and this gave me a chance to try out a thermal wire stripper that was acquired used through ebay. I must say it work very well and much faster at stripping Teflon than my cutting type stripper and there is less chance of cutting/nicking the wire. It takes a little to get the hang of at first but after that is was smooth sailing.
The LED's are UX1L's which are a little greenish on levels 1 and 2 above that they have a nice white color to them making me wonder why I have shied away from this tint variation for so long. Give them a try all of the T bins WO WA XO and YA I have received in the last year have been very nice when driven at or near spec unlike years ago.
I have encountered the dreaded hung board a few times since the light was put together, it only occurs when being turned off leaving 2 LED's burning but it's simple to clear by holding the switch down a few seconds then turn off as normal. After several hundred switch cycles it has done this 3 times, I can't make it happen using fast or slow presses it just happens /ubbthreads/images/graemlins/icon3.gif but not often enough to be a problem.
And yes it is bright /ubbthreads/images/graemlins/grin.gif
Later
Kelly