Hello, I'm having a problem creating a solid from three profiles.
You have to imagine a vase, which would have a round shape at the base, then a star shape, and at the last level a Vauban's star shape (vagement...)
By trial and error, I sometimes manage to match the edges between each profile. But I never manage to create a hollow volume...
The capture did not allow me to visualize the conept well, so I took the liberty of uploading the stl, if sometimes a good soul had time to take a look.
First of all, the 2 stars being 8-branched, try to simplify by working only on one branch.
If the thickness is constant, make a full volume and then a shell function
You have to create breakpoints (split tools: http://help.solidworks.com/2016/French/SolidWorks/sldworks/HIDD_DVE_SKETCH_SPLIT_ENTITIES.htm, this tool is not in the bar by defutation, you have to look for it in the menu) to have as many segments in all the sketches (including the circle so to be converted into a polygon).
On the other hand, the operation of the thickening is not suitable for my use, the software shifts the surface in relation to an axis perpendicular to it. What I would need would be more of a function that shifts the profile on the x-axis if we look at the part from the side.