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Thread: Calcomp 565 plotter - looking for the pen mechanism

  1. #1
    Join Date
    Mar 2004
    Wilmette, IL (north of Chicago)
    Blog Entries

    Default Calcomp 565 plotter - looking for the pen mechanism

    I returned from the recent VCF-West with one more item off my ever-shorter "must have" list - I am the new owner of a very nice Calcomp 565 drum plotter. Even better, I was able to find the perfect shipping container for it at Weird Stuff!


    More photos here - .

    The only problem, unfortunately a major one, is that it is completely lacking the pen mechanism. This is actually a multi-part assembly that threads into the carriage on the front rails of the plotter and lifts the pen up and down in response to z-axis commands from the controller. It is a solenoid that uses the pen as the core and was thus supplied in many configurations depending on the kind of pen used. The first couple photos show what I'm looking for but I'd be happy with any bits of any configuration if you might have an idea where to find such items.

    Any help will be greatly appreciated!

    BTW, I'm well aware (and deeply envious!) of the fine work done by Tom Mikulic who recreated the entire mechanism from scratch - .


  2. #2
    Join Date
    Jul 2014
    Rhode Island


    Very nice! We had one on the CDC 6600 at school.
    There are some NOS DELCO 2N392 transistors on eBay.
    Member of the Rhode Island Computer Museum

  3. #3


    I have a complete plotter with a pen mechanism I am trying to sell, I may be willing to part out if the price is right, pm me and we can discuss more if you are still looking for one.


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