How to refurbish plotter pens?

Paul Koning paulkoning at
Thu Apr 6 13:07:15 CDT 2017

> On Apr 6, 2017, at 1:59 PM, Mattis Lind via cctalk <cctalk at> wrote:
> A late follow up on this topic.
> I got my IBM 1627 running. ...

Nice work!

I remember a plotter (possibly a 1627 -- it was attached to a 360 model 44 in college) that by default used ballpoint pens but had an adapter to use Rapidograph (india ink) pens.  Those are nice because they produce high quality plots and of course are readily refillable.  


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