My first build for a Revan Saber.

[DarthBrute]

Well here is my first build. Am I missing anything? In case I am what do I need?

MWS Pre-Wired Nano Biscotte Sound Module

MHS speaker and 2x AA battery holder x1

JST Extension x2

JST connectors

Tenergy Li-Ion 14500 Rechargeable AA size 3.7V 800mAh x4

Dual 24 gauge wire x4

Pommel Powder Coating (PM31)

Hilt style 1 with standard style switch hole

Screw on LED blade holder style 18

MHS ribbed extension

MPS Pommel style 3 v1

MPS Insert style 6

16mm Anti Vandal Momentary Nickel Plated Switch

8-32 x 1/4" Set screw

Machine recessed AV switch hole
Price: $10.00
location: Same location for switch hole on Hilt style 1.

Drill & Tap Hole (8-32)
Price: $7.50
location: Centered in main groove area.

Blade Holder Powder Coating (B181)

Extension Powder Coating (RIB3)

Seoul P4 LED & MHS Heatsink Module

[Starwinder]

Looks pretty solid. If you're using Li-Ions in a 2x AA battery setup though, you'll want to get a dummy cell since the NB only needs the 3.7V of one battery to run.
Also do you want a covertech wheel or D-ring for attaching to your belt? Completely optional of course.

[Silver Serpent]

MPS clip for holding your pommel insert in place.

Also a li-ion charger, if you don't already have one.

[DarthBrute]

Charger check!

I just realized I need a buck puck. The P4 says 800mAh but the puck only has 1000 and 700. Which one should I get? And what is overdriving an led and why is that good or bad?

[Jordandau]

You don't need a driver with the nano, just the correct resistor. It's far cheaper and smaller that way.

[Silver Serpent]

You actually can't run a buckpuck with the Nano (without some crazy wiring at least) because the Nano uses 3.7v and the puck needs a minimum of 5v. Resistors are the way to go with a Nano-based build.

Overdriving an LED is when you run it at a higher current than it is rated for. For instance: running a 700mA LED at 1000mA, or running a 1000mA LED at 1200mA (or more). This will usually increase the brightness of the LED, at the expense of a shortened LED lifespan. You also get increased heat and a reduced runtime. Some LEDs are more tolerant than others. I know the Rebel reds used to be very intolerant of overdriving, and would actually dim or burn out if you tried.