Solution, guys, solution! If anyone is interested, of course.
7 times revising Klabautermann’s tutorial, I once again found that the perspective grid (Home Grid) is too large for that sizes.
I rummaged in max settings and found at last a solution that satisfies everybody (and I have always been exposed to the default). You need to set in
Customize (of 3ds Max) -
Units Setup -
System Unit Setup – not 1 Unit = 1 Millimeters, but
1 Unit = 10 Millimeters -
OK -
OK.
And then you import the mesh sizes are the same. It is unclear what to do with objects were created in previous settings (in fact proportional scale in 3ds Max still does not work). Starting again from zero? Does not seem the best option.
In any case thank you for your attention ^_^