Troubleshooting Z level roughing

FeatureCAM has different methods of Z level roughing.

  1. Mills the wrong side of the surfaces.
    • Toggle the Classify slices as attribute on the Strategy tab.
    • If the Classify slices as attribute is set correctly, make sure that the normals of the vertical surfaces are pointing out. Use the Surface Control tab to reverse the surfaces.
  2. Slices are coarse.
    • Decrease the Tolerance attribute on the Milling tab.
  3. The slices look strange around holes or passages in the walls of the feature.
    • Use a cap surface to plug holes (or untrim the surface), or use a larger diameter tool.

For a generalized boss, FeatureCAM uses the stock boundary or stock curve as the outer boundary of the boss.

Control Z-level roughing with the Corner radius %, Toolpath corner %, and Trochoidal cut attributes on the Milling tab of the Surface Milling Properties dialog.