Building and (most importantly) programming one of those was a pipe dream back when I used to browse Let's Make Robots a bunch of years ago.<p>Sadly nowadays I just can't get into these projects that'd need me to spend money and would just sit on a drawer until the ends of the time after completed.
Those look really cool!
I looked a bit, but don't find the source for the kinematics? I'm guessing this is in the android app, which isn't source available?