"Double Skin"

Hi. I'm new to Blender and started making modeling, till I ran into a problem.

I need help to remove a "Double Skin" as shown in the screenshot, as well as those blue lines.

The issue happened as I joined two objects and added mirror modifier. I already tried removing doubles as well as removing modifiers, but to no avail.

Thank You!

  • $\begingroup$ the blue lines are the display of the normals. $\endgroup$
    – David
    Dec 25, 2017 at 20:47

1 Answer 1


When removing doubles you need to have everything selected. If that still doesn't work try selecting a section of one 'skin' and pressing Ctrl+L to select everything connected to it and then delete it.

  • $\begingroup$ This will be on edit or object mode? Again, I'm new, barely three days using Blender $\endgroup$ Dec 25, 2017 at 19:35
  • $\begingroup$ This will be in edit mode. $\endgroup$
    – Brenticus
    Dec 25, 2017 at 19:35
  • $\begingroup$ Oh and the blue lines are the face normals. There is nothing wrong with having them, they just show which way each face is pointing. To get rid of those, have your mouse over the viewport, press n to bring up the properties panel and under the Mesh Display header click on the little face icon. $\endgroup$
    – Brenticus
    Dec 25, 2017 at 19:37
  • $\begingroup$ Thank you for your help. Manage to work with the blue line. The "Skin" however, seem to be attach to the center edge. If I try delete it, it deletes everything. $\endgroup$ Dec 25, 2017 at 20:01
  • $\begingroup$ Also note that remove doubles has a "tolerance" setting, which by default is not zero... you can adjust it. $\endgroup$
    – m.ardito
    Dec 25, 2017 at 20:05

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