I'm trying to design a holder for a UV filter that will slip over the end of a photographic flash unit. I have the sleeve for the flash and the ring to hold the UV filter. I'm trying to figure out if I place the ring 25mm from the end of the flash sleeve, is it possible to have Solidworks connect the two to make a smooth transition? The ring, of course is round, but the flash sleeve is essentially a rectangle with rounded corners and slightly tapered on the sides. Is this possible? Sweeps only allow for one profile and a path, and boundary wouldn't allow me to select the end of the flash sleeve as it contained too many entities.