When fitting this, it may feel tight, ensure there are no rough parts inside the pole tube made by the fixing screw.

This is a remix of https://www.thingiverse.com/thing:2821795, but its not showing a remix
I wanted a slightly stronger cap so added an outer tube.

The Inner part that goes inside the pole is 23mm , The outside size I have made 32mm, and the space between the layers is about 2mm.

I'm printing in ABS with a 22% infill, the stl created in S3D with manual supports so the tube section was not filled with support, only the net hoop catch has supports

If you want to use the Gcode, you will see my bed setting is only 70c this works forme,you may have to adjust as reqd.