Hi RD,

re:
> Using your current example, what would be the best settings for the Grid and the Snap options to be
> able to see the grid and to be able to snap on mm while setting the base unit to meter in MoI3d?

If this is for your case with the object being approx 1.5 meters across, you don't need to set base units to meters, you can have units = mm and set the grid to:

Grid size: 10mm
Snap size: 1mm
Grid sections: 150

If you want to make the grid spread out over an even wider area then it's best to just increase grid size alone and maybe grid sections a little but not by some enormous amount.

- Michael