I am working on an upgrade of my Robotic Arm Project that has managed to survive two years worth of kid interactions over the course of many different events. To say I am surprised at its longevity is an understatement.
A few months ago a fellow member of MTRAS posted on our Facebook page a link to a robotic arm project. The article poster / builder used a design that was previously posted as open source to Thingiverse.com. I took a look and thought that it would make a fun project that would be simple enough to follow but also challenging enough to be rewarding. So I decided to give it a shot.