Michael

many thanks again

You were exactly right. The smaller peice is not an upper solid. I was trying to create this peice (using curves and mirror) on the surface of the torso so the matching was exact. When i lofted the peice it did not cap. So, I have created another peice, which is solid and did cap and then moved that to the correct area and then union it worked! I had to rotate and scale a little to align, however it did work well. I wonder if their is an align to a surface tool? Next bit of work :)

Really starting to enjoy this now...hopefully enough I can justify paying for it at the end of my trial.

Scall