This is a parametric version of my Rugged Box Gridfinity(https://than.gs/m/841349) to change parameters, load in Fusion 360 and change the slotsWide, slotsDeep, and slotsHigh as needed for your application. TPU gasket is optional in most uses. Handle is optional and might not work with all box configurations. WARNING: this handle is quite thin and only pressure fit, so make sure you test it with the weight of what you plan to keep in the box.
This is a mashup of the Rugged box from https://www.printables.com/model/258431-rugged-box-parametric/files and the Gridifinity base plate from here https://www.printables.com/model/377158/files\
EDIT 8/17/2023 Changed the label for the lid body to no longer be body32 but rather be Box Lid. This change has no geometry changed and is purely a labeling correction.