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I have this complex shape.

enter image description here

I need to grow the bottom face downward such that the top geometry stays the same, and all the edges along the sides maintain the same vectors that they have right now. (In addition, the top needs to also remain exactly where it is.)

Put in other terms, picture a pyramid. Then chop off the top and remove the base. I have the top of the pyramid and need to create the base again.

enter image description here

I need to create the base (highlighted) and place it in the exact correct spot).

Anyone know how to do this simply? If I could figure how to grow (only one side) an edge along its vector that would work great. Or simply transform the vertices along that same vector.

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  • $\begingroup$ So you got edges and you want to make a face out of the edges? $\endgroup$ – Bradman175 Oct 27 '16 at 4:18
  • $\begingroup$ No, I will edit the post to put a picture that is easier to understand. $\endgroup$ – Bob Oct 27 '16 at 4:26
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You can slide edge loops by double tapping G. Then use Alt or C to make a loop go beyond the edge limits.

You can find more options here under "Edge Slide" https://www.blender.org/manual/modeling/meshes/editing/edges.html

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