Impossible bool - cuts hole, but no inner mesh.

Support Modeling
1

Why can’t I bool this? I don’t understand. I have removed doubles, flipped normals. What more can I try?
It seem to cut the hole, but its not caping it.

Screen Shot 2016-12-04 at 15.47.36.jpg2300×1757 163 KB

This is a simplyfied example. My real boolean operation involves text and manually capping would be quite tiresome (since it usually works).
Any ideas of how to fix this. Please say I just missed the ctrl + x + y + z command that just solves this :slight_smile:

>> solution - apply transformations (ctrl + A) if mesh has negative x,y or z-axis, then recalculate normals (Ctrl + N). Thanks to Richard Marklew

Below is the impossible_bool.blend file included.

impossible_bool.blend (569 KB)

2

Look at the object scale. Have a negative Y scale

Screen Shot 2016-12-04 at 15.55.55.jpg1116×910 161 KB

Select the object then apply the scale (Ctrl+A) and then select all vertices and recalculate normals (Ctrl+N)

Screen Shot 2016-12-04 at 16.00.33.jpg1722×1402 337 KB

3

Thank YOU! I have had this problem from now and then, unable to find what differs. Thanks again!