The other day, we switched out some thick, heavy aluminum tubing for some carbon fiber tubes (cheap chinesium tubes from ebay)
For the aluminum tubes, we used Tube Nuts McMaster-Carr
They work excellently in aluminum. Super happy with the fit.
In Carbon Fiber, however, it was very difficult to press in the nut, even though it was at the looser end of the range. When we got them pressed in, they seemed to almost cut into the carbon fiber wall a bit. It looks to have scraped away some of the layers.
After they’re pressed in, they seem to work fine but I felt like I was going to break the tube, even though it was carbon fiber.
With that being said, is there a better way to attach a tube to a plane other than a tube connecting nut? I know in driveshafts they glue aluminum ends on then use those ends. I think that’s a bit impractical, unless 3d printed.
Any advice or ideas?