Working with Solid Models and Weldments - Autodesk Inventor 2010: No Experience Required - page 191

FIGURE 4.39 A preview of the drawing view ensures that you're getting the
view you need.
15. Edit the base view to be scaled to .75 and the isometric view to be
scaled to .5. See Figure 4.40.
FIGURE 4.40 Nice spacing between drawing views
16. Save the drawing.