Direct copy of PeterDesigns "Rugged Gridfinity Box (Parametric) i just added a handle to the box, and added a chamfer on the small studs around the box.
Handle uses M3 x 16mm screws
Parametric function should still work in fusion 360.
The author remixed this model.
Only difference made is i added a handle to the parametric model.
+ Added small chamfers to the small studs on the outside of the case.