This little DIY 64×64 graphical printer by [Egor] is part pen plotter in design, somewhat dot matrix-ish in operation, and cleverly designed to use unmodified 9G servos. The project page is all in ...

Fraser Ross' DIY Pen is a flatpack biro kit. A laser-cut sheet of plywood contains pop-out wooden donuts of various sizes, and these are slotted to fix onto two spars which form the twin scaffold ...