Hello, I am pretty new here - started taking an online course at a local college, and it got shut down for the pandemic and the course is now online. 

Having a bit of trouble with a model I have been working on. I have a circle profile swept along a sketch consisting of segmented line. The initial sweep properly miters the round provide per the angle of each segment. However when I do a linear pattern of the sweep at 90 degrees, all the way at the type where the two sweeps intersect there are "left over cut offs" for the lack of a better term. If I was cutting a physical round pipe they would be just loose cut offs. What is the easiest way to get rid of these?

I tried drawing triangle profile and doing extrude cut up to the pipe surface, but it is very tedious. Is there a simple way?