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I need to clean up a mesh and thought of using boolean operation to remove the unwanted part. But the 'hanging' edges don't seem to be affected by the boolean operation. For example: if I have a cube and I extrude an edge, I thought a booeal difference with another object overlapping this edge would slice it off. Which doesn't seem to be the case. I get similar results with other boolean operations and even boolean modifier behaves the same way.

Is there a way I can achieve the objective of cutting off a portion of an object via another suitably shaped object?

boolean difference on edge

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    $\begingroup$ Boolean operations only work well-ish on manifold gemoetry $\endgroup$
    – Duarte Farrajota Ramos ♦
    Commented Sep 20, 2018 at 16:38
  • $\begingroup$ I get the best (but still unsatisfying) results by adding thickness to planes with the Solidify modifier $\endgroup$
    – WhatAMesh
    Commented Sep 20, 2018 at 18:28

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