With the additional goal of keeping the plotter easy to build with cheap parts, the design centers on a “grit roller drive” for the Y-axis — the one that actually moves the paper back and forth.

[Morten] has been busy recently making a pen plotter. It is a simple and elegant ... The other is connected by laser-cut gears to a roller bar, scavenged from an ink jet printer, that moves ...

Unlike some plotters, it can switch between media in the sheet feeder and the roll feeder automatically. Wi-Fi is built in with Wi-Fi Direct available and AirPrint compatibility. The HP Smart ...