Ski Pole tip or floor protector conversion to walking sticks

A cover for the tips of your ski poles, so you can use it indoors, such as when you have a bad back and need temporary walking sticks.  Can also be used as general protector for your ski pole tips or what they hit.

It puts a 25mm rounded end onto the otherwise sharp tip of the ski pole.

Print it in TPU, mainly for grip and to stop it marking surfaces.  Print it end-upward with four or more top layers to spread the load.

If your tips are a different size, the adjustments to make are at the top of the openscad source.