MPCNC pen holder for sharpie holder

For my MPCNC I built a sharpie pen holder (thing:1133425). It works great but the shapies themselves leave a pretty thick line, so I designed a subcaliber insert to hold s 1.0 papermate pen. Best of both worlds now. There are both single and two piece versions depending upon your available printer height. Simply crazy glue the two piece one together. A spring goes in first to help maintain even down pressure. https://youtu.be/o5wF5CLv-r4

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