These two bin dividers are derived from the project by StvPtrsn. The intent was to make divider bins that stacked in a way that allowed 12 sets of through hole resistors to be organized within a single Akro-Mils small bin. I customized the original STEP file in onshape, the project is at
https://cad.onshape.com/documents/9d586305d7e0510f8d79f737/w/4984de3922d1be2748ce514e/e/5a9df3882045284d55a18308

N.B. I originally posted the design on Thingiverse