Tactile Turn Pen to Fisher Space Pen Refill Adapter

Tactile Turn Pens are great but they do not fit Fisher Space Pen refills without an adapter.  These are quick prints that allow you to use Fisher Space Pen refills in both the Standard and Short pen sizes.   Note:  The adapter may get stuck in the Slim versions of their pens.  

For Standard adapter - insert the pin into the sleeve ½ way.  There should be ~11mm of pin sticking out the side (see picture).   It's a tight fit

The 3mf file has both types of adapters.  The gcode files are specific to each pen size.   Prints just fine with a 0.4mm nozzle.  Brim recommended.  Designed in PrusaSlicer so the negative volume doesn't render correctly on this website.