I also found this lightweight portion of 3/4” light weight tubing on Amazon. I thought about taking a rubber mallet at tapping it into the bottom of the stopper that’s in the larger lower diameter of post, then tapping a simple rubber chair foot onto it. It’s a snug fit in that apperture in the plug at the bottom of the 33.9mm tube, but it might work.
3/4” craft tubing I bought next to original telescoping post.
Plug in bottom of 33.9mm lower tube with 3/4”
Thinking tap this into the aperture for a snug fit?
Originally Posted by
wayold
1.375" tubing (with various wall thicknesses and almost any length) is commonly available and is ~1 mm thicker than your desired 33.9mm. I would think any machine shop (or even an amateur with a lathe in their garage/basement) could turn it down to size. I don't know how the binder attaches, but if it's just a reduced diameter section at the top of the tube with a longitudinal slit cut in it, that too is easy for a shop to do. Of course, even though a machinist could do this in a few minutes, it would probably cost a pretty penny from a professional machine shop.