after a boolean operation I was trying to bevel some edges, the result is completely random, any idea how deal with this? My ideal result would be something like this

link to the file

Thank you!

Weird bevel behaviour


1 Answer 1


One of your face is reversed, you need to recalculate the normals (in Edit mode, select all and ctrlN).

I guess it messed up with the bevel because bevel uses the orientation to create the bevel profile, so two faces with opposite normal orientation > bug.

Anyway, here is a way to do it:

enter image description here

  • $\begingroup$ Thank you for the reply. But unfortunately my problem comes with the "create bevel" step, the vertices go in random directions... $\endgroup$
    – JohnDoe0
    Jan 31, 2019 at 17:11
  • $\begingroup$ so maybe share your file $\endgroup$
    – moonboots
    Jan 31, 2019 at 17:12
  • $\begingroup$ I updated the question, hopefully you can find a solution. Btw thank you for your detailed explanation with images, much appreciated! $\endgroup$
    – JohnDoe0
    Jan 31, 2019 at 18:03
  • $\begingroup$ Oh thanks, actually you just need to recalculate the normals $\endgroup$
    – moonboots
    Jan 31, 2019 at 19:23
  • $\begingroup$ Thanks, that worked. But I wonder why they use normals and not the the actual face orientation to bevel... $\endgroup$
    – JohnDoe0
    Jan 31, 2019 at 19:42

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