proximity joint (need help)

hi all

i try to make something like candelabrum 2.0

[IMG]http://i851.photobucket.com/albums/ab79/farizbu/a.jpg[/IMG]

but i have problem in making the joint
i have set the integer in proximity become 3
how to make line between 2 points in the 2 circle curves like in this picture below

[IMG]http://i851.photobucket.com/albums/ab79/farizbu/b.jpg[/IMG]

[IMG]http://i851.photobucket.com/albums/ab79/farizbu/c.jpg[/IMG]

thanks before