Hello,

I want to design a pretty simple part, like a hopper, which is rectangular on one side and circular on the other. There are tutorials on youtube using the hopper function in GSD. I managed to get the correct result. However the part I get is a sheet of metal that needs to be rolled in a conical roller machine to be manufactured. I would like to manufacture this in a press brake.

I followed this tutorial : https://www.youtube.com/watch?v=SlKRRdF91Ac

I'd like to know how to turn it into this kind of part (I am talking only about the rectangle/circle transition section) :

On this image, the rectangle to round transition is achieved by multiple folds.

For learning purpose, I tried to design a rectangle to hexagon transition. That doesn't work because of the sharp edges. I think the problem I have is the hopper function is for rolling sheetmetal and I need folding... Don't know how to do it ;-(

Hope my question finds you