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Planar Cut

What is it?

The Planar Cut tool allows you to cut mesh objects using a face as the cutting plane. It works exclusively in object mode and is ideal for making precise and clean cuts through multiple objects at once.

Access and Shortcuts

  • Pie Menu: Manipulation > Planar Cut
  • Operator: damtools.planar_cut
  • Modal keys:
  • Click → Select cutting face / Confirm cut
  • Spacebar → Confirm cut (in review mode)
  • ESC → Cancel operation

Workflow

Simple Mode

  1. Select objects to cut
  2. Activate Planar Cut
  3. Click on any face to use as cutting plane
  4. Objects are automatically cut

Review Mode

  1. Select objects to cut
  2. Activate Planar Cut
  3. Enable "Review Plane" in operator properties
  4. Click on any face to use as cutting plane
  5. Review the highlighted cutting plane
  6. Click or press Spacebar to confirm

Parameters

  • Review Plane: Toggle to enable/disable cut preview mode
  • Default: False
  • When enabled, allows reviewing the cutting plane before executing the cut

Tips

  • The cutting face can be from any object, not just the ones being cut
  • Use review mode to verify the cutting plane before making complex cuts
  • The cutting plane extends infinitely in all directions
  • All selected objects will be cut by the same plane
  • Cut surfaces are automatically filled
  • Objects are automatically separated into individual parts

Known Limitations

  • Only works in object mode
  • Cannot be used with non-mesh objects
  • Does not support undo during the modal operation (only after completion)
  • Complex geometry might produce unexpected results

See Also