Gridfinity 4" Thermal Label Dispenser

As a starting point I used the 3x3 bin from this post:

Gridfinity empty bins for customization + parametric file
https://www.printables.com/model/369952-gridfinity-empty-bins-for-customization-parametric
by Akio (@Akio) on Printables - https://www.printables.com/@Akio
Creative Commons (4.0 International License) Attribution—Noncommercial—Share Alike
https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.txt

The above bin itself is a remix of Zack Freedman's Divider Bins. MIT licensed.
https://bit.ly/ZFGridfinityDividerBins

Starting file:
divider-box-parametric-empty-3x3x6.step

I loaded the above step file into Meshlab, resaved as STL, then modified in Blender (yeah, I know, no longer the preferred step file but on my OS/system and with my skills that worked best. Get over it, I'm a no pro).
For modification I stretched the height to fit my thermal roll and then added side cutouts to hold the axel. This perfectly fits the 473 count 4x4.5" thermal roll from UPS on