Sure, we see quite a few plotters and other motion machines, but the one from [DAZ Projects] has the virtual of looking dead simple. The Arduino and CNC shield are old hat, of course. But some 3D ...

As an example, the plotter uses 2020 extrusions and lead screws. An Arduino with a CNC shield provides the brains. GRBL, of course, runs on the Arduino, so the whole machine runs fine with normal ...

These fluctuations in skin conductivity are displayed on the Arduino IDE's Serial Plotter, and indicated by the three LEDs. The green lights up when the conductivity is in the person's normal ...