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I am new in Blender. I have basically done mesh walls, and I want to cut away doors.

So I select each wall, take boolean "difference" and select the red rectable (that should represent a door)..

But something weird happens. I can see the wall has been slightly changed at the door, but no cut out.

What I am missing?

Download link to .blend file

https://www.dropbox.com/s/apv7gx2394jtu0d/blender.blend?dl=0

I have also done a video

https://youtu.be/hIt52h4-bRs

I can upload the Blender project if needed.

enter image description here

enter image description here

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  • $\begingroup$ Please upload the blender project. It would help a lot. $\endgroup$ – caleb lee Jun 1 '19 at 17:52
  • $\begingroup$ Ive updated the question with the file dropbox.com/s/apv7gx2394jtu0d/blender.blend?dl=0 $\endgroup$ – corgrath Jun 1 '19 at 17:57
  • $\begingroup$ If you are "new to blender" do yourself a favor and avoid using booleans. Learn how to model without it. $\endgroup$ – user1853 Jun 2 '19 at 3:30
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BMesh solver (the one used by default by the boolean modifier) don't like when two faces are coplanar, like the lower faces of your wall and door.

You can move down your door a bit (or just move down it's lower face).

You can also change the solver used by the modifier. In Solver, instead of BMesh, select Carve.

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  • $\begingroup$ It worked, thank you! $\endgroup$ – corgrath Jun 2 '19 at 5:43

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