Hook knife sharpener

Sometimes I sculpt. I have my own small collection of tools, including a special, curved knife for carving cups or spoons.
The biggest problem was always sharpening it.
I once found a sharpener for such knives from BeaverCraft in the depths of the Internet. This one here is inspired by her.
This is a prototype. If I print it and test it to the end, maybe there will be corrections.

The photo is the source sharpener I found here: https://woodfan.pl/narzedzia-reczne/ostrzenie-dlut-i-strugow/dwustronna-ostrzalka-profilowana-z-pasta-polerska-beaver-craft-detail.html?gad_source=1&gclid=CjwKCAjw4_K0BhBsEiwAfVVZ_5s4hPy_JiUHXAu3Fg-glT78OaUj3oplSauvghNtrXdUJbw7GkSgTRoCoP4QAvD_BwE