I've added an updated file since I ended up making it even a little bit wider still - the 1" canes typically need a little more wiggle room than the foldable canes. The wide one usually needs supports - but I wonder if rotating the .stl would make a difference.

Designed by modifying a different design (I made it slightly wider since the original design was a little too small for my cane). When I printed it with ABS, it needed supports. When I printed the original design (https://pinshape.com/items/30975-3d-printed-simple-cane-holder?fbclid=IwAR1ebAsXvdWIMX4RvApmy9L-b5CMnhG3Bt5VDTbUOLAmNjU_VtqfWx6Qf8M) with PLA,I did not use supports - but I think it would have printed better with supports.