Create a cheap yet effective dual ended light saber for a sci-fi fancy dress party.
Anyone that has seen Star Wars knows Mr Kickarse 'Darth Maul'. He was different, he had a light saber that had a blade on each end. He didn't say much but you knew he was trouble. Wih this guide you too can be the silent one who looks like trouble. As long as Ewan McGregor doesn turn up with a Force FX your safe.
Step 1: Construct Blade
The most expensive part of this project will probably be the LED's. For mine I opted for 50 LED's per blade (100 total). These will light up in 5 blocks of 10 giving the appearance of the blade firing up. My blade length is 1100mm 1000mm of which will be visible so I need an LED approx every 20mm.
Initially I bought 5000mcd LED's assuming the higher the mcd the brighter the lamp. This has not been the case. Quite disappointed with the output of these I then took a gamble and bought 2000mcd with a much wider viewing angle and sure enough they are easily (appear) twice as bright as the narrow angle 5000mcd.
By bending the anode (long leg) at right angles at the very bottom you can solder it to the anode of the next LED which gives us about a 20mm spacing. The cathode can then have your resistor. Im my case I am running of 5 volts so use 150ohm resistor. Your could possibly run one resistor per 10 led's but due to manufacturing anomalies you may get varying brightness