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Focusing LED light through fiber optics...
HaRuMaN:
Basically... I'm trying to light up a clear bubbletop with one of Randy's RGB LED's, which at 5mm, is too big to fit.
Is there some sort of housing I can plug the end into, and run fiber through the hollow shaft and into the bubbletop?
Franco B:
A 5mm LED should fit into a Seimitsu LB-39 bubble top no problem (assuming that the ball top you are using).
You should just need to remove the shoulder with a file or grinding wheel etc until it goes in.
HaRuMaN:
Hmm. I'll have to give that a shot.
HaRuMaN:
Ok, so I shaved off the shoulder, and it goes in now... but the way the 4 wires are arranged (in a straight line) and the size of the LED itself is causing problems. Anyone have any bright ideas?
Franco B:
I see you are using RGBs, I havent tried using a RGB but my thought was to bend the legs into a square shape to get the wires in a better posistion to go down the bore in the shaft. I think you would also need to drill slightly deeper into the bubble top to allow it to sit a little higher to give an extra room for the wiring.
Needless to say you will need to use thin gauge wire to get the four wires down the hole. I think you bought a hollow shaft of Luigi didnt you? I'm not sure what size he bored his out too but I drilled mine 3.5mm and countersunk the top end to the thread diameter to aid insertion/mounting . Mine also have a slightly reduced length of thread to allow a little more room.
3mm four leg RGB LEDs (not the two leg flashing/pulsing type) would help but I havent seen any.
If getting four legs down is impossible it may be possible just to wire up and insulate three of the legs and then leave one of the outer legs with no wiring/insulation and let that rest against the inside of the bore. You could then use the shaft's conductivity as the forth 'wire' and then just solder a wire onto the bottom/base of the shaft.
I've also been thinking about your idea for fibre optic cable. I thought that if it works then it could also be an easier solution for tangle free lighting. Ive ordered some 3mm OD 48x0.25mm core cable to have a play with. I'll let you know how I get on.
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