I modeled it using T-splines plug to get the smooth folds. Lines were laid out flat over a surface to create creases. Peaks and valleys could be adjusted by moving surface points. After that I used the command "flow along surface" to wrap it around the inner tube.
side view
Top View
I uploaded it to Shapeways for 3d printing in stainless steel. But there is a minimum order amount and I will wait 1 to 2 weeks to have a couple more rings modeled before I order them. I also still want to inscribe my name and the RAW ring number into the inside of the ring. Since this is stainless steel I don't think I can use my normal steel stamps to put my makers mark in them.
So I guess I will play around a bit more this coming week.
Update:
Got printed ABS models back from Ponoko and did some test castings. Love the texture of the 3D printing lines. The inside was polished and the outside was left with printing texture.
