The author remixed this model.
There are three versions here: LOOSE, TIGHT, and SINGLE. In all, I removed the HSW push-fit connector and added pegboard click mounts:
I recommend measuring what you're building the bin for with calipers and then adding 0.8 for a reasonably tight fit. Add 1-1.8mm for a drop-in fit. Always round to the next highest 0.2mm value if using 0.2mm layer heights (standard for a 0.4mm nozzle).