Full-Auto Nerf Rayven

This is my full-auto Nerf Rayven. I use a Hitec HS-82MG servo to actuate the trigger lever and dart pusher like a crank and slider mechanism. There is also an Arduino inside of the blaster that controls the servo and drives the ammo counting display. I used this blaster at the last SFSU HvZ game (4/21/2013). :) This blaster is pretty fun to use, but has a handful of problems: - On three trustfires (in series), it lasts roughly 3 hours before needing a battery swap - Squibbing still