I cant seem to Cut a hole in Any objects with the Difference operation while using the Boolean Modifier, All it does make Objects Disappear or Instead give me an Error(Unable to perform Boolean Operation)

  • $\begingroup$ May you please upload a .blend file? the only time I had this problem was when I selected an object with no mash overlapping but I can't tell that from you screenshot. Thank you! $\endgroup$ – Scalia Mar 7 '15 at 2:37
  • $\begingroup$ Possible related issue with this question: Why doesn't the boolean modifier work for me? $\endgroup$ – Leon Cheung Mar 7 '15 at 2:51
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    $\begingroup$ It could be that you are trying to affect a mesh that is non-manifold read:blender.stackexchange.com/questions/7910/… $\endgroup$ – user1853 Mar 7 '15 at 2:53
  • $\begingroup$ My build of Blender 2.73 performs the Boolean operations flawlessly, either it is a bug or you are trying to perform the operation on a non-,manifold mesh as Cegaton mentioned. We need your .blend file to be sure. One thing you can try is adding a new cube scaled by 2, and adding a new cylinder and scaling on the z axis by 3, and performing the operation with them. $\endgroup$ – VRM Mar 7 '15 at 12:32

It appears that your mesh with the Boolean modifier is a 2-dimensional plane, this will cause some issues with your Boolean operations. I noticed some very unusual behavior when trying to perform a Boolean operation on a 2-dimensional mesh (final result, difference mesh has been deleted):

Boolean Difference 2D

However if I extruded the plane a small amount, the result was completely normal:

Boolean Difference 3D

I think you will have to add some thickness to your mesh before using the Boolean modifier if you want to achieve expected results.

Also see this answer to a very similar question.


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