In this three part video series we watch [Dirk Herrendoerfer] go from scraps to a nice 3D printed assembly as he iterates through the design of a pen plotter for making circuit boards. [dana] ...

A unique pen plotter has been created which utilises a robotic arm to be able to draw illustrations in a variety of different colours and styles. Aptly named the Mechpen, pronounced “McPen”, project ...