Make2D fail with internal G1 surfaces

Serengeti (Rhino WIP)
1

In the File below, Make2D on the lower 3D elements - the outer rim is a revolve of tangent segments, thus has by default G1 internal joints. Make2D Top view fails on the outer diameter.

Now, the upper 3D element is a copy, but on the rim I ran DivideAlongCreases/SplitAtTangents=Yes before Make2D. The result is good. (Tested in both V6 and WIP)

So, that leads me to two important conclusions:

  1. Make2D still needs improvement, and
  2. Creating surfaces with internal G1 joints by default with commands such as as revolves and extrudes is still and always has been a bad idea.

Make2DFail-V6.3dm (868.3 KB)

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