I just printed this. I used TPU (blue) and it turned out great. I learned how to insert a pause in the print to allow time to insert the washer. It fit the cane perfectly and now the cane can be used by relatives. I actually used it as a test of "how fast can I print a part for something to make it useful again" Turns out I can do it pretty fast, from finding this design to printing and installing it on the cane was just a couple of hours. (Yet one more way to justify the existence of my printer.) Thanks