For some reason the Harbor Freight 40 Bin Organizer (https://www.harborfreight.com/40-bin-organizer-with-full-length-drawer-94375.html) has slots for dividers but doesn't come with any. I use them for sorting Lego parts that don't need full trays.
Very basic, no special print settings. Should be a decent press fit but you can always add a drop of superglue if you want them to be semi-permanent.
The author marked this model as their own original creation.