In the Kato Radio Control series, I have introduced various DIY robot projects so far. Combat robots made with 3D printers. Arduino-controlled drones. ROS-based robot vacuums. But the AR4 MK5 is ...

A 3D printer might have been one of the most exciting purchases my household has ever made. First, our basic bed-slinger 3D printers were simple enough that a 12-year-old could put them together solo.