About this 3D model
I've only remixed the case for the gauges to have a snap fit. The cover has a small fillet added to create friction with the base. The base has small grip on sides to ease the opening of the box. The normal tolerance prints just fine in PLA with .4mm nozzle on P1S. However, if your printer can handle better quality, you can find tighter tolerances (and also more loose ones) in the other_options. I've also attached the Fusion360 project files if one wants to have custom tolerances. One can use gauges-conv-conc-proj_difcolor.3mf scene file if using Orca Slicer (or Bambu Studio) as I've prepainted text objects there. P.S. Have to reprint the convex box with the blue text (: