Best Practices for Not Crushing Thin-Wall Tubing

[JamesCH95]

Originally Posted by ghesla

Last season we used some 3d printer parts inside the tube.
It worked well and has allowed us to have precise holes in the insert.

We used some to support dead shafts, avoiding support them only in thin walls.

Why did you feel that this was necessary?

Some quick bearing load calculations assuming 1/32in wall, 3/8dia dead axle, and passing it through two tubes (thus 4 walls), and a 35ksi yield strength: 1/32in x 3/8in x 4 x 35,000psi YS = 1640lbf of bearing strength through just the walls of the tubes.