Shapeshifter lampshade (***redesigned for no support printing)

Remixed version of a lovely lamp bra.

The problem with original models is that without supports the angle is close to 45 degrees and therefore material tempts to slid.
The remix is done by stretching vertically the original model and cutting the bottom part to fit into my 140 height limit of Flashforge 3D Dreamer.

I tried to use myself AutoCAD Shapeshifter (http://www.123dapp.com/sandbox) but I was not able to get anything similar to what you did in terms of shape and smoothness of the or