Archiloque @archiloque CC BY 2/03/2018 An intro to Pen Plotters▻http://www.tobiastoft.com/posts/an-intro-to-pen-plotters http://static1.squarespace.com/static/51907831e4b0454b98add7d2/t/53d45ef4e4b0e08793bc2b58/1406426885773/HP+7475A.jpg?format=1000w Archiloque @archiloque CC BY