In my ongoing quest to get a little bit more organized, last year I purchased a set of packouts to see what they could do for me. I quickly realized how limited the regular cups were in the full version and the single bar dividers in the slim version just were not cutting it; considering how I wanted to move away from small square dividers with 4x4 5x5 slots and stanley organizers with a multitude of cups.
Rather than printing full cups (thus more filament, print time, ...) and having empty cups sitting around; I figured I could do something better with the dividers. So after the small cup x grid 4 bin [ https://www.thingiverse.com/thing:3520576 ], came the large x grid 6 bin [ https://www.thingiverse.com/thing:3524331 ], and naturally followed the idea for other variations and even more versatility. And thus now the large x grid plus 8 bin.