The fashion of building world saving open source robot arms is in full swing. This arm however has a pretty specific mission and it seems to be built properly to do it. It is designed to hold a pair of tool heads vertically. It is a SCARA style arm which means it dispenses with the complicated wrist and shoulder actuators but has fewer degrees of freedom. . However compared to a classic gantry style CNC this has the benefit of being smaller, but has the disadvantage of being far less rigid. I wish them luck and hope to see another entrant into the world of open source.