I've often been tempted to get a pen plotter, but haven't quite taken the plunge. For #genuary22 I did some experiments with overlapping Archimedean spirals, that could eventually be used with a pen-plotter. I find the spirals interesting since their radius is non-constant, so lining up the tangent circles becomes challenging. I still need to explore the Browne and van Wamelen paper on spiral packing - here they were just placed by brute force.





