Boolean operations applicable to shells are subtraction, intersection, and combination.
Subtract the volume of one shell from another
- Choose Surface Edit > Shells > Shell Subtract.
- Click the shell the will be subtracted from.
- Click the shell whose volume will be subtracted from the first shell.
What if...?
- A boolean operation does not work?
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- Make sure the shell’s normals are pointing outward. (See Reverse the direction of a curve or surface for more information.)
- Boolean operations may not work on shells that contain problematic geometry such as collapsed sides or multi-knots. (See Simplify objects for more information.)
- Boolean operations may not work on shells that have open edges. Use Object Edit > Query Edit to check for open edges. If is , there are no open edges. Otherwise, the number of open edges is given, and they are clearly indicated by red arrows.
- I want to work with multiple shells at once?
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