How to refurbish plotter pens?

Philipp Hachtmann hachti at
Sun Apr 23 21:01:56 CDT 2017

On 22.04.2017 15:21, David Gesswein via cctech wrote:
> Felt tip was also available.
> picture here

Wow, great page! I think I also have the felt tip metal thing somewhere. 
I have to find that plastic box with Calcomp stuff again....!

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