I wanted to use my Petzl Irvis Hybrid crampons with my Alpina Alaska leather 3 pin boots. The Petzl telemark replacement bale is too wide for leather boots so I made some indexing spacers to help keep the crampon centered when placing the bale over the duckbill.

The model is directional, print two original, and two mirrored models to make a set.
Print in TPU and slide over the bale so the bumpers are on the inside and pointed back towards the boot.