Storage Shelf Filament Spool Holder

I have a set of Blue Storage Shelving Units (which I believe are the same ones listed on Amazon here: https://a.co/d/2YGXf9D ) with a lot of empty holes, so I figured I'd use the extra space to store filament spools!

On my particular unit, the mounting holes are 36mm apart, and the holes themselves are 11.8/7.8mm at the widest/smallest points.

Almost all of my spools are 68mm wide, so if unsure, use that file provided, but I've also included other sizes for narrower/wider spools.

I print with 4 walls and 15% infill with generic PLA, but use whatever strength settings you prefer, depending on the weight/width of your spools and the filament material used