Use the Gouge avoidance page to determine what happens to the toolpath when a surface prevents profiling at the lowest position. The options on this page are dependent on the selected strategy:
Strategy — Select a strategy to determine how the toolpath behaves when another surface would cause gouging.
- Lift — The toolpath tries to machine at the lowest position. If it can't machine at the lowest position the toolpath segments are removed.
- Trace — The toolpath tries to machine at the lowest position. If it can't machine at the lowest position, the toolpath is raised as little as possible until it reaches a position at which it can machine. The maximum position to raise the toolpath is defined in the Upper limit field. If you do not specify an upper limit, then an infinite upper limit is assumed.
Thickness — Enter the amount of material to be left on the model, within tolerance, when gouge checking. Click the
Thickness
button to separate the
Thickness
box in to
Radial thickness
Axial thickness
. Use these to specify separate
Radial and
Axial thickness values. This option is available only for the Wireframe Profile strategy.
Upper limit — Select this option to specify the maximum height above the surface of the highest segment that the toolpath can be raised. Above this limit, the toolpath segments are removed.
Degouge tolerance — Enter the maximum distance, normal to the surface, that the toolpath can move to find a safe position. If gouges greater than this value are detected, then the tool is lifted axially to avoid the gouge. Gouge avoidance moves the tool along the tool axis. Degouging moves the tool along the surface normal.
Swarf finishing options
The method to specify the upper limit is different for Swarf Finishing strategies:
Upper limit — Select the position to measure the upper limit from:
- Top — The limit is the offset distance measured from the top edge of the surface.
- Bottom — The limit is the offset distance measured from the bottom edge of the surface.
- Workplane — The limit is the offset distance measured from a specified workplane.
Workplane — Select the workplane which the upper limit is measured from. This option is available only if you select an Upper limit of Workplane.
Offset —Enter the distance of the upper limit measured from the geometry specified in the Upper limit field.