one pin diy dot matrix printer

I’m pretty sure that in 1986 all I wanted was a new pair of hi-tops. While I was hoping for new shoes, [Matthias] built this printer for his commodore 64 using a ball point pin and a solenoid to form a hybrid plotter/one pin dot matrix. If you’ve got a few minutes, [Matthias] has quite a few interesting hacks on his site.


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