Earlier this year, I began building a full-sized humanoid robot, following the InMoov design, because I wanted to build a robotic sparring partner.  I wanted him to swing an eskrima stick at me, throw a punch at me, and even do some blocking drills.  I wanted to fight a robot.

Unfortunately, he sucks at fighting.  There is a very long list of necessary modifications before he could even throw a single punch that lands with impact, and not fall apart immediately.  Changing t...