First Saber Wiring

[sparkyinbozo]

I'm putting together my first lightsaber and found someone who has the exact same build design as I do and I wanted to double check a couple things on the writing. This person deserves all of the credit, though. Here is the diagram:

https://www.flickr.com/photos/87639342@N08/14122291388/

Power supply is a Li-Ion 18650 3.7V 2600mAh, LED is a green Luxeon Rebel Star (runs at 3.4V, run at 1000mA).

Here are my questions:

I see that he has a resistor before the LED, but a forum member had commented that I would not need one on another post...should I be putting one in there? I feel like it seems right to. I did a calculation and came out at 2W or greater 1 Ohm for it using the LED calculator, if that sounds correct...his says 3-5W, but had a different LED.

Similarly, I need a resistor for my switch (12mm green ring, forward voltage of 3.0V and runs at 20mA), though I haven't gotten it yet...using the resistance calculator I got a 1/8W or 39 Ohm resistor. Does that sound right?

Lastly, this probably sounds silly, but how do people secure their NB Boards in their hilts? I assume you don't just want it hanging out there...

Thanks for the help, it's been a while since I dealt with wiring diagrams and am re-learning a lot. This forum has some great members who've been super helpful.

[Forgetful Jedi Knight]

I'm putting together my first lightsaber and found someone who has the exact same build design as I do and I wanted to double check a couple things on the writing. This person deserves all of the credit, though. Here is the diagram:

https://www.flickr.com/photos/87639342@N08/14122291388/

Power supply is a Li-Ion 18650 3.7V 2600mAh, LED is a green Luxeon Rebel Star (runs at 3.4V, run at 1000mA).

Here are my questions:

I see that he has a resistor before the LED, but a forum member had commented that I would not need one on another post...should I be putting one in there? I feel like it seems right to. I did a calculation and came out at 2W or greater 1 Ohm for it using the LED calculator, if that sounds correct...his says 3-5W, but had a different LED.

Similarly, I need a resistor for my switch (12mm green ring, forward voltage of 3.0V and runs at 20mA), though I haven't gotten it yet...using the resistance calculator I got a 1/8W or 39 Ohm resistor. Does that sound right?

Lastly, this probably sounds silly, but how do people secure their NB Boards in their hilts? I assume you don't just want it hanging out there...

Thanks for the help, it's been a while since I dealt with wiring diagrams and am re-learning a lot. This forum has some great members who've been super helpful.

Technically, you could get by with a .47 Ohm 1/2 W resistor for that Green LED. Resistors with a higher wattage are OK, but the bigger the wattage, the bigger the resistor.

Regarding the switch you could use a 18 Ohm, 1/4 W, or a DynaOhm resistor.

Usually using some type of a chassis system. They are under Misc in the MHS section or you can check out a nice all in one piece in the speaker holder section. You'll recognize it when you see it.

[sparkyinbozo]

Thank you, sir! You're my hero for the week, plus you've helped me out before, too. Building these up is way too much fun, I feel like a lot of money is going to be sunk here in the next year or so...

[Forgetful Jedi Knight]

Thank you, sir! You're my hero for the week, plus you've helped me out before, too. Building these up is way too much fun, I feel like a lot of money is going to be sunk here in the next year or so...

No one ever said this was a cheap hobby!

[sparkyinbozo]

No one ever said this was a cheap hobby!

But definitely worth every dime in awesomeness.

[sparkyinbozo]

I encountered a new question - I bought the NB Header & wiring harness and noticed that there are 2 red wires - one for LED and one for battery. Is it ok that these are separate, rather than wired through a single one (per the above diagram)? I would just be connecting one to the battery/recharge port and the other would take place of the orange directly to the LED. Thanks!

[Forgetful Jedi Knight]

Picture please?

[sparkyinbozo]

This is the diagram I'm working off of:
https://www.flickr.com/photos/87639342@N08/14122291388/

Here is the harness - you can see in the pics how the red wires are vertically stacked. I think they connect together, so it shouldn't matter?
http://www.thecustomsabershop.com/NB...ness-P833.aspx

[Forgetful Jedi Knight]

OK, I see now. That's fine. They terminate inside the connector.

[sparkyinbozo]

OK, I see now. That's fine. they terminate inside the connector.

Awesomesauce, many thanks.