I don't understand the edges orientation

Question Modeling

Hello:

I have the following mesh, which is exactly the same on the four sides.mesh1.png


I want to create a "poor man's solidify" effect in the selected edge ring. I mean, I want to put some width on it.

mesh2.png

I have tried the Extrude+Immediately Scale trick, but the created edges seem to be taking very weird directions... (are they pointing towards the cursor or the origin?...)

mesh3.png

I would love to know why these edges are not aligned. Only the middle edge of each side seems to be aligned to X or Y, the other ones seem "rotated".

Why is this happening and is there any way to solve it?

By the way I have tried with changing the transform orientation and the pivot with no success.

Thank you in advance!

  • Martin Bergwerf replied
    Solution

    HiCristian,

    If you hide the top cubes, you can see better what is happening:

    Scaling.png

    This is the normal behavior; each Vertex on those Edges are scaled towards the center.

    There is an Addon, 'Inset Straight Skeleton' that, when you fill in a Face and then Search for Inset Straight...., or goto Face > Inset Straight... would give you:

    Scaling1.png

    Which might be more what you are looking for...you'd have to Delete some unwanted Geometry and maybe Merge those three Verts on each of the corners, but it's a possibillity.

    Or Extrude and Move each side by itself(leaving out the corner Vertices and filling those later.

    1 love
  • Hi Martin.

    Finally I decided to, after extruding and scaling, manually move each vertex and, using vertex snapping, adjusting them so the edges are straight. But it's a very long and tedious work.

    Anyways now I'm wondering if there is any inconvenience in that those edges are not straight, maybe not and it's just activating my OCD haha.

    Thank you for your response!

  • Martin Bergwerf replied

    Well, in most cases the is no problem with those Edges not being parallel. If it were a cylinder, you probably wouldn't find it strange, that they are all pointing inward, making concentric circles.

    1 love
  • Omar Domenech replied

    I have that OCD as well, I like to see all my lines straight. I go one step further which is that if it is not closed, if that hole is there in the middle, I can't live with it, I have to close it and waste geometry lol.

    But yeah, it's not necessary, you were doing fine from the beginning, scaling towards the middle is ok. There is also the Alt+S which lets you scale along the normals. 

    1 love
  • Nice to know I'm not the only one hahaha

    Thanks for the replies!