Legend says that this Droid escaped from a top secret Hermitcraft Laboratory.

MumboJumbo assembled its body and said it was, "Quite Simple Really..."
TangoTek was in charge of the redstone circuitry. He called the main processor array a "Thoughtmitificator."
Docm77 was responsible for the advanced redstone AI. This is probably why the robot escaped to make evil redstone builds.