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Here the bevel modifier works well: enter image description here

But moving the selected edge, which would perfectly work for a non-beveled shape, makes the bevel progressively enlarge one of its curves, even if the mathematics say that the enlargement should be much smaller: enter image description here

The object is symmetric towards a YZ plane. The bevel has options loop slide/angle/arc/shape/grid fill. With other options, as far as I tested, it works similarly or worse.

Is it possible to have the shape well-beveled in Blender 2.82?

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Welcome to Blender Stack Exchange!

There are a couple of things to try here.

First, select everything in edit mode and press ShiftN to recalculate the normals. Sometimes Blender gets the direction the vertices are facing confused, and this causes issue with beveling.

Second, try and get rid of the 'ngons', aka faces with more than 4 vertices. Beveling ngons is always a bit risky, and when you start moving things around it's not uncommon to see issues pop up. Insetting the ngons with I is a possible way to get some nice quads along the edge of your bevel.

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  • $\begingroup$ I have found that the bevel doesn't work just for any mesh complex enough which I have used. I recalculated normals, removed duplicate vertices. Applying I made either nothing or even more problems. Can it be, Blender's bevel algorithm is good only for simple meshes, otherwise it just fails? $\endgroup$
    – scriptfoo
    Apr 2, 2020 at 16:21
  • $\begingroup$ Bevel usually works pretty well, aside form what I mentioned. Are you able to upload your file? Then I can take a look. You can upload files here: blend-exchange.giantcowfilms.com Then edit your question and add the link. $\endgroup$
    – Brenticus
    Apr 2, 2020 at 16:25
  • $\begingroup$ Yes thank you, but can I change the example? In the above, I have finally used a workaround by tapering the object with a lattice (which is better than the original method) but I have a misbehaving bevel in another place. $\endgroup$
    – scriptfoo
    Apr 2, 2020 at 16:34
  • $\begingroup$ Absolutely. Just make sure the title of the question still fits the example, or update that too. $\endgroup$
    – Brenticus
    Apr 2, 2020 at 16:54
  • $\begingroup$ The title would need to change so I decided to create a new question blender.stackexchange.com/questions/172898/… $\endgroup$
    – scriptfoo
    Apr 2, 2020 at 17:41

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