Using Auto Reliefs
The software automatically adds relief cuts wherever needed when inserting
bends if you select Auto Relief.
The software supports the following types of relief cuts:
If you want to automatically add Rectangular
or Obround reliefs, you
must specify the Relief Ratio.
Tear reliefs are of the minimum
size required to insert the bend and flatten the part. You can select
Rip 
or Extend 
.
Relief Ratio
The distance d represents the
width of the Rectangular or Obround relief cut and the depth by
which the side of the Rectangular
or Obround relief cut extends
past the bend region. The distance d
is determined by the following equation:
d = (relief ratio) * (part thickness)
The bend region is represented by the dark gray area of the diagram.
The value of the relief ratio must be between 0.05 and 2.0. The higher
the value, the larger the size of the relief cut added during insertion
of bends.