This stuff brings back memories... as a junior dev, one of my jobs was to keep the Rotring ink pens working so that we could plot maps on tracing film on the Ca

This stuff brings back memories... as a junior dev, one of my jobs was to keep the Rotring ink pens working so that we could plot maps on tracing film on the Calcomp drum plotter. I later wrote some Fortran code to sort the data in order to minimize drum movement. Goodness, but that's a long time ago...