I am attempting to thin loft a rectangle to circle transition for manufacturing from sheet metal.
The Loft PM will not recognise my Centerline.
Without a centerline or guide curves the loft works but it's shape is not useful.
I created guide curves as separate 3D sketches and added then one by one to the Loft PM.
The loft is approximately a useful shape with 4 guide curves, seen clearly in the section view, but the loft fails when I add the next guide curve.
I have tried several sequences of adding guide curves, but the loft always fails on the 5th curve.
Where have I gone wrong?