Beginner: Help with blend

 From:  Stever_uk (STEVER)
4653.26 
Guys

I have created a simple model and wishing to connect the cylinder.

Now I know this is a candidate for the blend tool and it does works. However I having a brain block how to merge it into one object

Once I apply the blend tool, and attempt and boolean Union the cylinder still refuses to merge into one cylinder.

Steve
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