I tried to make an axe based off of a reference image from google and the geometry is weird and showing many artefacts after applying subdivision surface.

I eliminated all doubles using merge by distance and also the entire geometry is in quads. I feel that there is some close lines and I tried merging a few shapes but I can't figure out what.

I am new at blender and I realize that the geometry is bad so asking for your help.

Here is the blend file


  • 1
    $\begingroup$ the only weird thing I see is this vertex, delete it and fill the faces it will leave: zupimages.net/up/21/40/mzlt.jpg $\endgroup$
    – moonboots
    Oct 7, 2021 at 16:23
  • $\begingroup$ @moonboots Yea that is one, but deleting that vertices messes up the face below and above it... I don't know how to tackle that. Also there are a lot of artifacts at the place where the blade joins the cylinder. $\endgroup$ Oct 7, 2021 at 16:32
  • 1
    $\begingroup$ yes there's a problem here, there's a face that you need to delete, then again fill the faces: zupimages.net/up/21/40/9mgs.jpg $\endgroup$
    – moonboots
    Oct 7, 2021 at 16:36

1 Answer 1


Edit mode:

  • Enter Face select mode

  • Select and delete this face:

face to delete

  • Select and delete these faces:

more faces to delete

  • Select and delete this vertex:

Vertex to delete

  • Enter Edge select mode

  • Using the F2 add-on fill the large hole with faces:

hole filled with 10 faces

F2 allows you to select one edge of the hole, position the cursor inside the hole and then create the face with F. Select the left most edge of the hole, position the cursor to the right of it, and type F ten times. This is fewer key strokes than filling the individual holes.

  • Select the 4 edges of the left hole and add a face with F:

left hole to file

  • Use F2 to fill the right hole.

  • The easiest way (at least to describe) to deal with the rest is:

  • select all of the edges surrounding the remaining hole and make an n-gon face:

n-gon to finish filling the hole.

  • Finally, use the knife tool to subdivide the N-gon into six quad with three cuts:

the final six faces

You might want to edge slide vertices to smooth out the new lowest row of faces.

By the way, you have a similar but slightly different problem on the other side of the axe. If you deselect all and then use the Select menu to Select All by Trait -> Non-Manifold you'll find the problem:

issues on the back

  • $\begingroup$ I did solve the problem....These were some elementary problems.... But thanks a lot for solving it. $\endgroup$ Oct 12, 2021 at 15:30

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