Vertical Small Polishing / Grinding Pen Holder

This bin is designed to hold a small USB Grinding / Polishing pen,
30 bits/dies, 2 drill bits, 3 cutting blades and the collet for
the cutting blades. The sort of generic off brand ones for sale
all over Amazon and the rest of the internet.

It's designed to keep the pen with the USB port facing up so that
it can be charged in the holder. All measurements are given about
an extra mm of tolerance to keep things fitting loosely, but if
your printer isn't precise, you may want to add another half mm
or so to the die / bit holes, or you might wind up needed to use
your pen to smooth and widen them out a little.

You can customize the bin by editing the values in the Dimensions
spreadsheet of the FreeCAD project and adjusting the values under
Bin Customization. Bin height is calculated to allow most of the
pen to be inset into the bin, and could be reduced to save filament
but be sure to also ajust the Pen Depth value to match the new
reduced height.

Recommend printing with 3% Gyroid Infill to balance between speed
and strength, but Lightning or Adaptive Cubic are also good
alternatives.
 

Current source files can be found at the git repository