I'm Not sure what I have created but I need to join them into a single component

[sharscott2]

I am attempting to align the spinner and backplate so I get locate screw holes and everytime I join the spinner to the backplate, only the lower ring of the spinner joins. I am not sure how to make the spinner a single component so I can accomplish this. I have attached a file

[davebYYPCU]

Because your file, is an Assembly file, 

(Normal) Joint the spinner to the backplate.  Add offsets if required in the Dialogue Box.

Might help.....

[jhackney1972 · Accepted solution]

You have two Surface Bodies in your Spinner Conical Component that are interfering with your use of an assembly joint.  Video will show what I mean.

[sharscott2]

thank you