Custom PONG Build Part 4, Coupler Assemblies

With the CA coat on the ends you can lightly sand the paper smooth.
Just remove any roughness, you don't want to remove the paper. The paper is helping hold the loose fit rings in place.

With the tip of your knife, cut a "star" pattern in the center hole of the centering ring.

Wrap some 400 grit around a dowel (or Sharpie pen here) and sand off the inside paper pieces. Sand up and down and around the perimeter of the inside circle.

This is a good and stronger fit over one of the internal BT-5 tubes.

Enlarge the picture to see some of the thin yellow covering sanded off.
I was surprised at how thin the yellow layer was.