I built a Prusa i3, with most parts 3D-printed on another Prusa i3. I mainly use it for university projects, printing actuators and cases. Last semester we prin

I built a Prusa i3, with most parts 3D-printed on another Prusa i3. I mainly use it for university projects, printing actuators and cases. Last semester we printed a model boat, about half a meter long, outfitted it with a printed a linear actuator to control the rudder angle, and - as our semester project - built an autopilot for it. Great fun :-)