I have a problem in lofting the following sketches. What Im trying to do here is to loft a solidshape with a clover shape figure which is at 14mm from a circular shape and then I want to shell the solidshape at a width of 2.5mm. I tried offsetting both the figures and slecting the regions enclosed between them for lofting however I was unable to do that because solidworks only allows me to select regions in 2D. As in If I can get the regions enclosed between the two clovers and the two circles perfectly lofted, my problem would be solved.

I tried using surface loft but it just connects the curves with an infinitely thin sheet of material. Surface lofting gives me self intersecting geometry error.

For now I just connected the outer curves and used the shell command, but as you can see from the image, the hollow shape generated is irregular and not perfectly concentric

Any help would be of immense use

Thanks

Abhishek