Sakura Pigma Micron Pen Holder

thingiverse

A clever pen holder that relies on the pens' clips to secure its position, providing an instant visual indication of the size required. Designed with minimalism in mind, it keeps filament and size usage to a bare minimum. The flimsy packaging often associated with fine liners is now a thing of the past. If you're familiar with Solidworks, simply modify the dimensions to accommodate any set of pens you have on hand. I've included the part file for your convenience.