
A plotted picture of Graham wearing a hoodie but no trousers. This was plotted using four Bic Biro pens with separate layers for the yellow, magenta, cyan, and black inks. The picture only contains straight vertical lines.
I deliberately skewed the four colours so that they were slightly misaligned. This was to accentuate the colours and to emulate the effect of misregistration in a traditional printing process.
The original picture that I used was posed remotely, with Graham in Scotland. The image is A3.
Material: Bic Biros on paper
Equipment used: Pen plotter; Raspberry Pi single board computer; Inkscape software to control plotter; Affinity Designer to draw lines; LibreOffice Calc to organise data