Pen Carrier

Problem: Needed a way to conveniently carry from 1 to 7 writing instruments along with my engineering design journal. My favorite journals to use for design journals, and for bullet journaling are the Leuchtturm Medium and Large journals, but they can only carry one pen if you buy the separate pen loop.

Solution:
Design and print out a pen carrier that clips onto the cover of the journal and holds between 1 and 7 writing instruments depending on how geeked out I want to get.

Design Criteria:
The carrier has to securely fit a wide variety of pens. (From thin mechanical pencils up to the diameter of the popular Pilot G2 size pens.)
The carrier has to fit on the cover of the Leuchtturm Medium journal (or equivalent thicker covered journal.)
The carrier has to be easily removable so another unit quantity carrier can replace it.

NOTES:
The design was made in Autodesk Inventor in INCH format. If your slicer imports the model very small, it is most likely importing in as metric