Machine all raster spans — Select to machine all raster spans. When deselected, unnecessary raster spans are left unmachined. For high speed machining, it is best to have this option selected to ensure an even loading on the tool.
An unnecessary raster span is one where the tool either doesn't remove any material or doesn't remove any material that a future pass would not remove. This can happen on the first and possibly the last raster span of an area, and where the raster spans are shorter than the diameter of the tool.
Use the Raster page to specify settings for a raster-style pocket mill strategy, which creates cutting moves at a specified angle to either the X or Y axis.
Fixed Direction — Select to enable the Angle option. When deselected, PartMaker determines the most suitable angle for each area in turn.
Angle — Enter the angle to be used for each raster pass.
For example:
Select Fixed direction
Enter an Angle of 0
Select Fixed direction
Enter an Angle of 30
Deselect Fixed direction
In this case, most of the toolpath has an Angle of 0, but pocket 
has an Angle of 90.
Minimize full width cuts — Select to remove (as far as is possible) all raster moves that could cause the tool to cut on its full width. Due to the searching nature of the raster pattern, the tool may occasionally be cutting on its full width. This is not generally a problem when cutting soft material, but can cause tool damage when machining hard material.
Maintain constant stepover — Select to ensurethe stepover within an area remains constant (so that cutter passes lie on both edges of each area).
Selected:
Deselected:
