My Custom Sith Hilt Build

[jedimastergarcia87]

So I think I will finally be able to do a build. Its going to be a Sith blade. My question is, I took the advice of using 4 AA's for longer run time, red P4 LED, and the 4.7ohm 10w resistor. But my main question is, can I use that resistor or would it fry everything since I really need the 3w resistor? Or can the wattage be higher like the 10w one? Heres what the main hilt will look like. The red button guarded latching switch will be on the 2 inch extension under the deep ribbed extension. So thanks for t=any info on the resistor I need. Unless my info is correct. I used the LED resistor chart on the shop since it still has P4 info. Oh and the blade retention screw will be one of the red thumb screws to add more to the Sith look. And I will be using a 36 inch TCSS Battle Blade like always.

[Silver Serpent]

Wattage is a minimum. You can always use a higher wattage resistor. Just remember that higher wattage resistors are physically larger, so they take up more room in the hilt.

[jedimastergarcia87]

I'm having to use the 4 AA battery holder unless with this resistor I can use the two AA battery holder and be fine?

[Silver Serpent]

If you go from 4 AA batteries to 2 AA batteries, you'll need to recalculate your resistor value.

[jedimastergarcia87]

That I wouldn't know how to do. Won't the 4 AA battery holder be too long for the 4 inch extension or should it be fine? The switch was going to be placed on the 2 inch extension above the 4 inch.

[Silver Serpent]

http://www.thecustomsabershop.com/4A...der--P134.aspx is 4.29" long and 1.01" wide.

http://led.linear1.org/1led.wiz for all your resistor calculating needs. Plug in the voltage of your battery pack, the forward voltage of your LED, and the current you want to run the LED at, and it'll give you an appropriate resistor value.

[jedimastergarcia87]

What about with just the 2 AAs? I really don't know how to use that thing. I'm not asking to be "spoonfed" or anything. I'm just not good at math at all. And I was actually thinking of giving a rebel led a try because I sometimes see them in custom builds and depending on how the blades are they are ubber bright. So it'll still be a red but a rebel and 2 standard AAs.

[Silver Serpent]

Each AA alkaline is 1.5v. If you have two in series, you add the voltages together (3v). That is the "Source Voltage" you enter on the calculator. The "diode forward voltage" is the Forward Voltage (Vf) for your LED. You can find that information on the LED pages in the store here. http://www.thecustomsabershop.com/Seoul-P4-P306.aspx and http://www.thecustomsabershop.com/Lu...Star-P523.aspx depending on which one you get. Current is also listed on those pages. Plug it in, and it will give you a safe resistor to use.

Remember that you can always choose a higher Wattage value that what it recommends. Just don't go lower, or you risk blowing things up.

[jedimastergarcia87]

And just wondering. Since PCU pre-wired is still in stock alot I might also do an order on that, going all out and such. I've been interested in the LEDEngin 10W LEDS, RGBA specifically. Does PCU need a resistor for that certain LED? It was going to be the 14500 pack, PCU Dark Meat, and LEDEngin 10W Multi Color. Wanting to do red main blade and amber FOC. Would be nice too if there was a tutorial on how to get FOC activated and color mixing and such. I want to do a different kind of red. Think the Primary Red from the Lee Filters book. I want something like that.

[Ty_Bomber]

The pre-wired PC does not have the PEX attached, so if you want the foc, you will need to solder the pex yourself. You will also need to calculate the resistor for the foc led.