Drawing property
Each drawing in the library has a default size. This is the size used for displaying and working with the drawing. This does not affect the sizes used for machining parts because these may be parametrically defined and the same drawing may be used in many different actual part sizes.
If there is no default size the program uses the default of 1200.0 x 800.0 x 20.0 mm (with equivalent sizes when working with inches).
To set the size for the drawing display move to the drawing:-
● Select: File - Properties