Does these 5 models are strictly the same ? (not yet examined)

Ps why do not use the grid and don't float in the free 3D space? :)
Aligned to some axis on the ground for example...
and some times it's also dangerous to be faraway the origine for dark questions of internal decimal calculus...

...and if you don't want see axe, grid, you can hide them in the options! :)
(but please put them on it before :)