Added corner pieces to original cleat design to more easily locate boxes when installing on a dolly, the additional pieces gives extra support when moving\rolling your tool cart around rather then relying on the catches themselves or the locking mechanism activation tabs

Anycubic Kobra2 Max .4mm nozzle PLA 6 wall\base\top layers 25% infill with tri-hexagon infill pattern printed at 90deg on long face to reduce need for support structures, only support for the screw holes required