Properties¶
Properties shows the volume, surface area, centre of mass and bounding box of the selected bodies, or of every body when nothing is selected.

Below those is a print estimate. Pick a material, an infill percentage and a wall thickness to get a mass in grams and the filament length.
A body that is not a closed solid, an open shell, a solid inside out or one whose faces disagree about which side is inside, has no inside to measure. Properties then says what is wrong with it in place of the volume, the centre of mass and the estimate.