Gridfinity Storage Box Rack System

If you, like me, are a fan of Zack Freedman (https://gridfinity.xyz) and also a fan of the Gridfinity Storage Box by Pred (https://www.printables.com/model/543553-gridfinity-storage-box-by-pred-now-parametric) then you will have to have this one. It is a racking system for stacking Pred's box with free access to each box. It is based on the 5X% boxes of up to 12 units high. The system is secured with ¼-20 threaded rod and nuts plus 4MM button head screws and nuts to lock in the bracing. It is designed to be printed without supports if you insert the nuts while printing. 3.2mm/Layer 16 for the 4MM nuts and 5.2mm/26 layers for the ¼-20 nuts. I have built them as high as 12 units without issue. The system can be assembled in widths as small as two boxes width (joining left and right without middle) and any number wide (by adding more middle sections.