Hi all. As we all know, arc circuit boards have been very rare since forever, so i thought, why not make your own circuit that is as perfectly functional and fit to the light as an arc original circuit. A couple ideas have come and go. But i finally decided on this design (idea) simply because of its relative simplicity and fairly cheap parts (not including lux and the circuit).
here are the parts that you will need (note, lux is not included in the pic, forgot about it when taking the pic):
as you can see, the parts are really few, only 4. As a note, there are 2 kinds of retaining rings. the newer ones have a bit thinner overall thickness which makes the process a bit harder as a whole, but not much. the one shown on the pic is the newer one. it is yellowish in color, while the older one is silver in color. Also, you can take basically ANY board that fit into the hole of the retaining ring. Anyway, enuff rambling.
stack them together like the pic below:
You can use the board (in this case, i use BB) as it is and epoxy to the sink without further modification but then you will end up with a bit (about 2 mm) higher of the overall setup height, which might make your pack cannot screw fully. So, if you don't want that, you have to bore the heatsink a bit. Bore the sink so the inductor of the board can stick into the sink. to prevent short, epoxy the inductor to insulate it. the hardest part in this whole setup is to make sure you have proper and reliable ground. there are a lot of ways to do this, like making a couple of smaller holes into the sink and just wind the ground wire between the holes and the sink holes. As you can see on the pic above, i cut some of the penny's part so one of the hole in the sink is accessible for winding purpose.
after you make sure your board is working, and you have proper ground, epoxy the whole thing together.
below is the end result (again, not pretty but working anyway). /ubbthreads/images/graemlins/grin.gif
A note. as i said above, using newer ring will make it harder for the mod. This is because ... (i don't know how to say it) /ubbthreads/images/graemlins/icon15.gif . needless to say, it makes screwing the sink to the pack a bit harder, but that also applies to original circuit, so no difference there /ubbthreads/images/graemlins/icon3.gif
i believe this design has the same, if not better heat transfer than original circuit design, where there are 4 heat contact from lux to the flashlight body. In this design, there is only 3 contact point, with the middle being bridged by epoxy.
well, question, comment, critics are all welcome. /ubbthreads/images/graemlins/grin.gif
here are the parts that you will need (note, lux is not included in the pic, forgot about it when taking the pic):
as you can see, the parts are really few, only 4. As a note, there are 2 kinds of retaining rings. the newer ones have a bit thinner overall thickness which makes the process a bit harder as a whole, but not much. the one shown on the pic is the newer one. it is yellowish in color, while the older one is silver in color. Also, you can take basically ANY board that fit into the hole of the retaining ring. Anyway, enuff rambling.
stack them together like the pic below:
You can use the board (in this case, i use BB) as it is and epoxy to the sink without further modification but then you will end up with a bit (about 2 mm) higher of the overall setup height, which might make your pack cannot screw fully. So, if you don't want that, you have to bore the heatsink a bit. Bore the sink so the inductor of the board can stick into the sink. to prevent short, epoxy the inductor to insulate it. the hardest part in this whole setup is to make sure you have proper and reliable ground. there are a lot of ways to do this, like making a couple of smaller holes into the sink and just wind the ground wire between the holes and the sink holes. As you can see on the pic above, i cut some of the penny's part so one of the hole in the sink is accessible for winding purpose.
after you make sure your board is working, and you have proper ground, epoxy the whole thing together.
below is the end result (again, not pretty but working anyway). /ubbthreads/images/graemlins/grin.gif
A note. as i said above, using newer ring will make it harder for the mod. This is because ... (i don't know how to say it) /ubbthreads/images/graemlins/icon15.gif . needless to say, it makes screwing the sink to the pack a bit harder, but that also applies to original circuit, so no difference there /ubbthreads/images/graemlins/icon3.gif
i believe this design has the same, if not better heat transfer than original circuit design, where there are 4 heat contact from lux to the flashlight body. In this design, there is only 3 contact point, with the middle being bridged by epoxy.
well, question, comment, critics are all welcome. /ubbthreads/images/graemlins/grin.gif