Down Sizing (Shrinking)

It is also possible to size down. In this case the sizing is towards the inside of the shape as shown below:

The red layer is the original data (oblong pads are 0.024 wide). The blue is sized down 0.002 inches, the green is sized down 0.004 inches and the magenta is sized down 0.006 inches.

Note that if one specifies too much sizing down that traces can completely disappear. Some of the magenta colored traces have completely disappeared because they were only 0.008 inch to start with and a -0.006 sizing would reduce them by 0.012 inch.