We ran a story about a wall-mounted plotter bot this week, Mural. It’s a simple, but very well implemented, take on a theme that we’ve seen over and over again in various forms. Two lines, or ...

It’s a capable plotter, able to nicely reproduce both graphics and text. The build gains X and Y axes by virtue of two salvaged DVD drives.

Electrostatic Plotter This early plotter from CalComp used a dry toner process like a laser printer. LEDs beamed light onto a charged plate and produced monochrome drawings at 400 dpi.

The First Drum Plotter In 1959, the CalComp Model 565 was the world's first drum plotter. It had one pen and could handle media up to 11" wide. (Image courtesy of CalComp, Inc.) ...