Dorcy Jr- Blu-Ray!!

Kenom · Apr 18, 2008

not that difficult. I'm presently working on installing a pot into the bluray so I've got an adjustable bluray for this and do what you suggested and make a swappable head.

Dark_Horse · Apr 18, 2008

I am placing the resistors/pot into the original factory module, so the module is completely self-contained, the rest of the flashlight, including the head-body, is completely unmodified. In this way, these are already swapable with another module-set-up, or even the entire head, as you describe, if desired. This may be what you are saying anyway.
My favorite location to place a resistor so far is replacing the little yellow ground-wire, with a resistor, or set of resistors twisted together. This works really well, and with a little carving, a small pot may be placed here as well, but since this is the ground-side, you must be careful not to short your heat-sink, (which would be grounded), to the flashlight body. This would bypass your resistor-pack, I believe.
Anyway, fun-stuff

Dark Horse

Kenom · Apr 19, 2008

the only problem I have with putting the pot in the original driver or down inside the battery section is that you have to adjust the resistance before putting in the new module. When showing off my lasers I don't wanna have to mess around with adjusting something then showing just plug'n'play baby. Your idea of putting the resistor on the negative wire is intrigueing but won't work for my heatsinks since they do indeed come in contact with the ground. There is no doubt that there are plenty of places if a person is creative to place a small potentiometer. I have a 50 ohm potentiometer that is SMT. So it's gonna fit right on the board. I'm hoping that it fits right on the positive end. I'll take pictures to show what I've accomplished.

MB500 · Apr 19, 2008

I have a fixed resistance in mine. I think a total of 154.5 ohms instead of a POT, 35mA.

Dark_Horse · Apr 19, 2008

the only problem I have with putting the pot in the original driver or down inside the battery section is that you have to adjust the resistance before putting in the new module. When showing off my lasers I don't wanna have to mess around with adjusting something then showing just plug'n'play baby.

That's exactly what I was trying to say, just not very well I'm afraid.

I only modify the module-(that slides out of the head). To change a module, you would unscrew the head, slide out the "diode-module-assembly", slide in a new one, and you should be set for a new laser/LED light, because all of your resistors, or whatever, are only in the diode-module, (or you could just change the entire head). But I keep thinking, what good would this be, other than just the "coolness" of it? I modify mine in this way more because of my philosophy to maintain as much of the original design as possible. I like being able to "rip" the whole thing down in front of someone to explain exactly what you have done, and snap it back together ;D. I guess this would kinda be like the guys with the show cars, except I don't have a mirror under my hood ;D
Dark Horse

Kenom · Apr 19, 2008

ya know the one downside of having both modules in one is that you have one battery compartment/section that goes to waste. Now luckily I have a lot of left over components from these builds but if you didn't you would have to go out and buy 2 flashlights to build one laser.

Spyderz20x6 · Apr 19, 2008

what kind of resistor would lower 350-400mA to 130mA?

Kenom · Apr 20, 2008

here's a picture of the bluray with a pot in it. it's a 100 ohm pot. I started at 40 ohms and dialed it down until I achieved the desired output of 15mw. not a clue what the current is TBH

Dark_Horse · Apr 21, 2008

Kenom,
Thats perfect, is that on the positive or negative side of the diode?
Dark Horse

Kenom · Apr 21, 2008

Positive. I actually used the positive pad to connect the pot to. it's a bit hard to tweak the pot but it can be done. I had to cut down the plastic rings that go around the star. but it works perfect.

toked323 · Apr 22, 2008

i have a dorcy jr, i cut the spring to see if i can connect it to a diode, it has a shaft collar drilled out and stuck in it. i am asking 17.50$ shipped to anyone as-is though. maybe you can do something with it

Kenom · Apr 22, 2008

this isn't a for sale thread toked. Post it in the appropriate section please.

Spyderz20x6 · Apr 29, 2008

I see where this idea is going... Kenom, what if one were to put a 6x Blu-Ray burner diode in there...

Kenom · Apr 29, 2008

Not capable of producing the current AND the voltage I think.

Spyderz20x6 · Apr 29, 2008

Kenom said:
Not capable of producing the current AND the voltage I think.

The voltage would be the same. Higher power LDs don't take a higher voltage, they take a higher current. So why not? I'm guessing a 6x blu-ray runs at about 100mA from jayrob's calculations, so a 12-15 ohm resistor should do fine...

chido · Apr 29, 2008

Spyderz20x6 said:
The voltage would be the same. Higher power LDs don't take a higher voltage, they take a higher current. So why not? I'm guessing a 6x blu-ray runs at about 100mA from jayrob's calculations, so a 12-15 ohm resistor should do fine...

As the current goes up, so does the voltage.

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