What am I doing wrong (apart from everything)?

Support Modeling
1

Hi everyone,

Sorry to create another thread in such quick succession regarding my struggles with Blender. I have a couple of questions regarding the following video:

  1. Why am I unable to create an edge-loop at 0:37?
  2. Why are the bottom edges lumpy (seen at 1:14 onwards) even though the Z co-ordinates are the same for the vertices?

Any help will be greatly appreciated, as the outcome wasn’t as I was expecting. :confused:

2

At 0:37 you can’t loop cut because that face (and the one in the opposite side) is a ngon, a face made of more than 4 vertices (in that mesh it has 5 vertices)
Loop cuts work only on quads.
http://i.imgur.com/EQLXWv6.jpg

A solution would be to cut there so your ngons are now quads
http://i.imgur.com/9gcbOd4.jpg

For the other problem, it’s the same source : ngon
Do what you did, but only after making the 2 ngons into quads as i mentionned and you’ll see that the problem you’re having at 1:14 will go away, see :
with ngons :
http://i.imgur.com/hTKRRgp.jpg

with quads :
http://i.imgur.com/jK6r8WB.jpg

A general rule regarding ngons is that they’re usually bad to use with Subsurf modifier

3

Awesome, that makes sense. I’m extremely grateful for the detailed replies, thank you!