Cannot Stitch all Surfaces to create a solid

[LaurenceSachs]

Hello there,

I have modeled a pump volute, using several different sketches and lofted them together. There are areas that I have boundary patched also, between lofted sections.

I had to stitch the surfaces before I boundary patched them, but now that i have all of the surfaces, i cannot stitch them together to create a final solid.

Why why, i cannot work it out??

Please help

Regards
Laurence

 

[rollupswx]

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