About this 3D model

Hey! Came with another model, its a functioning prototype of a whip sword scaled down a bit for 3d printing and presentating. You probably know these swords which can change length from video games. This is the most working prototype i have ever did, i havent find further clues to make a fully functioning, it has problems with only one of the axises now! Sorry for the lack of the images of the print(so much of lol). I hope some day it will be made possible, good luck for modeling it! (f3d and step files)