Don’t stop early: Case-folding source code at memory speed

This DIY pen plotter has delta kinematics and a tool changer Pen plotters are kind of neat, if you like the idea of marking paper without resorting to printing. But almost every pen plotter out there is basically the same: Cartesian movement in two axes, with some sort of actuation in Z to lift the pen.

This DIY pen plotter built by András Vujovits is different […] rduino Blog.