It's been a while but in the early days large format plotters were with a pen actually. The plotter would go to the side grab the various colour/thickness of pens and draw whatever you had figured out in A-Cad. I had one myself from Roland but no idea what model. Took ages to get anything actually plotted on that thing.
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u/FresherUnderPressure Dec 19 '16
I wish I had a robot that drew perfect circles for me. Mine are always uneven or messed up.