Part Dimensioning Scale
2-D Dimensioning + Text > Edit > Extras 
> Part dimensioning scale 
Loading parts via the interfaces can cause scale modifications. The loaded parts are assigned the scale of the active drawing.
If a graphical element with length 100 and scale 2:1 is loaded into a drawing with scale 1:1, the dimension figure may change to 200.
- To prevent this, first create a part structure for the loaded parts.
- Then select the Part dimensioning scale function.
- Now assign the scale you want to the part.
