LOL
Its been a challenging project. To make a replica is one thing. To acquire and have accurate data, then fabricate the thing is another. THEN, since its a prop, it has certain limits, yet...since its a famous robot, its a challenge to make him roll, move, rotate, light up, beep, etc ...generally *behave* as we all know him from the movie. For example, the center foot and tilt is a huge challenge. Pneumatics? Linear actuator? You only have so much space and so much power. Or, is it an RC robot you control, or do you fabricate a PC system with a basic AI to move himself around, respond to input, etc etc.
Heck, building a BD-5 was easy...this...is a challenge. Im trying to have him *mostly* done before the next film is out. Plus Id like to honor a promise to take him the pediatric section and also a visit with the autism kids. Looking forward to seeing the kids reactions. So far, they've been pretty wow'd.