Boolean difference not carving correctly

Question

After applying a boolean modifier there is no surface on the area that was carved by the cylinder. It's kind of hard to explain in words. I have a before and after picture. In the after you can see there is no surface on the first part of the hole that was created. Wondering what is causing this...

before

after

Possible duplicate?https://blender.stackexchange.com/questions/82503/boolean-leaves-a-hollow-object — NBoss, Oct 30 '17 at 06:36
plz attach your file here https://blend-exchange.giantcowfilms.com/ for inspection — atek, Oct 31 '17 at 05:51

score 0 · Accepted Answer · answered Oct 30 '17 at 11:48

0

you could try the following: Go into edit mode, press a to select all, then w and remove doubles now back into edit mode, press ctrl+a and apply the rotation and scale. now try the boolean modifier again

are there any other things in your modifier stack ?

answered Oct 30 '17 at 11:48

J. Brosch

119
8

As always with booleans, check doubles, duplicated geometry, negative scale, unapplied transforms, recalculate normals and if possible avoid ngons. Did I mention them all...? – m.ardito Oct 30 '17 at 17:42

Boolean difference not carving correctly

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