I'm trying to learn modeling in Maya at Digital-tutors and I'm stuck at one point. I'm modeling an aircraft and made half of it and then mirror imaged.

In the tutorial there is no problem, but with mine there is a line at the center of the plane and when I do some changes like extrude, that line is opening.

  • 2
    Have you connected the verticies between the two sides? You have to connect them to make the object the same shape. Can you post a screenshot?
    – ckpepper02
    Nov 24, 2013 at 21:22

1 Answer 1


You have to connect the vertices between the two sides in order for them to behave as one object.

First make sure your two sides are one object. Then you need to use the Merge Vertex tool to connect the vertices.

  1. Select both halfs
  2. Go to Mesh > Combine
  3. Next you delete the history of the shapes so that Maya sees them as one image. Edit > Delete by Type > History
  4. Then proceed to merge your vertices using the Merge Vertex tool.

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