Edges Or Faces May Be Crossing After Apply Symmetry

[kencondal]

Hi All,

I have a rather simple T-Spine Form that converts without error when I Finish Form. However, when I apply symmetry and then convert, I get the Edges or Faces May Be Crossing error. I have checked and re-checked the body and can't find what is happening or why symmetry causes this error. At first I thought that some vertices along the symmetry line might be misaligned so (before applying symmetry) I did a flatten to the symmetry plane and then reapplied symmetry. Same error.

I have attached the .f3d file and would appreciate it if someone could explain what I'm doing wrong.

Thanks,

Ken

[PhilProcarioJr · Accepted solution]

@kencondal

Here is the problem face. if you split it the problem is fixed.

Normally I never use 3 sided faces, but if your finished with this form it should be ok in this case. Personally I would still make it a quad, but again it's ok for this.

[colin.smith]

Hi @kencondal

I found the same problem as @PhilProcarioJr.  

Uncreasing the edges will allow the form to convert.

[kencondal]

Hi @colin.smith and @PhilProcarioJr,

Thank you both so much for your help! This is my first foray into the sculpting environment and it's not as easy as it looks!

I must admit I'm a bit baffled as to why the form converted fine until I added symmetry. That's what led me to look in all the wrong places for a fix. I understand that triangles should be avoided whenever possible but sometimes they solve nasty problems. The creasing was necessary to hold some straight edges and I've found that sometimes a crease causes edges to cross, so I always keep an eye on that.

Can you give me any pointers on how you both found the error so quickly? Maybe if I knew what to look for I'd be more proficient.

Thanks again,

Ken

[PhilProcarioJr]

@kencondal

If you just look at the surface of the bad face you can see it folds in on itself.