Author here. For the last 5 years, I've grown my artistic practice as an algorithmic artist. Besides code and math, a key tool I use is a pen plotter. I've developed my own methodology for using fountain pens with these machines and have laid out why and how to do it.
Despite my general hatred for printers, pen plotters have a special place in my heart. The mesmerizing way the plot is done or optimized to minimize movement if you’re plotting in E size paper is something to behold. Doing something j conventional is all the better