Most pen plotters work by moving the pen on two axes, but [Benjamin] took a different approach, using the friction drive bars from the printer to move the paper on one axis, and a servo to move ...

Sure, we see quite a few plotters and other motion machines ... You might ask; if you have a 3D printer, why you wouldn’t just mount a pen on it and call it a day? Well, you could do that ...

The plotter was the first output device to print graphics and large engineering drawings. Using different colored pens, it could draw in color long before color inkjet printers became viable.