This is probably more of a calibration and compensation exercise for tolerances in whatever filament you use. The 2x2 grid is spec for Lego studs but every percent variation matters at this scale. It's also a bridging exercise for the underside of the test piece.
If you go for it, get the test piece figured at <1g of filament before going for the whole print!
I'm going to try it in 0.20-mm layer ASA once I get thru the print backlog for the day.
The author remixed this model.
Added a 2x2 lego stud grid to the top of the 150% body piece. Also joined the bodies for all the Mini 13 connectors. Modeled and included a 2x2 lego test piece for XY compensation testing and calibration.