I tried making a custom axe and the geometry is weird

Question

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

https://drive.google.com/drive/folders/14xmpw7HWBSs5hGiOXNs609RYpnqFPbZg?usp=sharing

Answer 1

Edit mode:

• Enter Face select mode

• Select and delete this face:

• Select and delete these faces:

• Select and delete this vertex:

• Enter Edge select mode

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

• 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:

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

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: