BT-55 to 29mm centering rings

[PDawg]

I can’t find these, anyone know a source? I want to mount a 29mm engine tube in a B5-55 body tube. I can fabricate one, but would rather not.

 

[waltr]

There people that do custom Laser cutting. Some advertise in the Yard sale section of this forum.
I work with someone that has a laser cutter and just send her a PDF of centering rings. Next day she brings me the rings and charges $5.

 

[LithosphereRocketry]

Honestly, that's such a small difference in diameter that you might as well just wrap masking tape.

 

[Black Bart]

Just peel the in side of a Estes ring