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8 years, 4 months ago
I'm having trouble with the Boolean difference modifier. It isn't cutting out some pieces of the mesh:
With the difference mesh hidden (note the lack of the rectangular cutouts)
All the normals are in order:
The modifier is not showing any errors or warnings.
Paste all .blend
In addition to any potential solutions I'm also interested in the description of situations when it happens and an explanation of the cause.
Nov 5, 2014 at 17:46
590 4 4 silver badges 13 13 bronze badges
You can fix this problem by first triangulating the mesh you wish to carve holes into. The large ngons on the top and the bottom make it hard for blender to create these holes.
Edit Mode, Tab
Select the mesh you wish triangulate,
A or hover mouse of mesh and press L
Triangulate the mesh,
You will notice that the error message under the modifier is now gone.
Nov 5, 2014 at 18:22
14.4k 15 15 gold badges 71 71 silver badges 108 108 bronze badges
Blender was throwing exceptions, you just have to check the
System Console by going to
Info > Window > Toggle System Console. To get rid of the exceptions I just selected the rectangles and separated them into another object. Then I applied the Boolean modifier for the cylinders, then added and applied one for the rectangles. This gives me this result:
Nov 5, 2014 at 18:01
2,537 1 1 gold badge 21 21 silver badges 37 37 bronze badges
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