To provide for more efficient movement of the tool across the component the link moves that connect adjacent tool tracks can be defined in several different ways.
Short/Long Threshold - This defines the distance limit up to which the Short - Links apply. Any move from the end of a tool track to the start of the next, which exceeds this distance is defined as a Long - Link move.
For Short links the available options include Safe Z, Incremental, Skim, On Surface, Stepdown, Straight, and Circular Arc.
For Long links the available options include Safe Z, Incremental, and Skim.
Safe links apply only at the start and end of a toolpath the available options being Safe Z, Incremental, and Skim.
For applications where a machine control system will permit arc fitting of rapid moves the Arc Fit Rapid Moves box can be ticked along with a suitable Radius based on the active tool diameter TDU (Of particular benefit to High Speed Machining).
•Activate the toolpath 1_1 created earlier in the Leads section.
•Set the Leads In and Out to None, if not already set. Press Apply.
Raster, Radial, Spiral, and Pattern Finishing.
This section will cover Finishing strategies created by the downward projection of a Pattern, which include four types, Raster, Radial, Spiral and (user defined) Pattern.
PowerMILL generates the toolpaths by projecting a wireframe form down the Z-axis onto the model. The standard patterns applied in Raster, Radial, and Spiral are achieved by entering values directly into the Finishing Form. The resultant Pattern can be displayed by selecting Preview before executing the command by selecting Apply. The Pattern option requires a user-defined geometric form (active Pattern), which is projected down Z onto the model as a tool path.