I managed to understand to a certain extent, but I can't reproduce the correct values, I put the animation in just 1 file as you guided me, it's only 3 frames (Beginning, Middle, End)
Animation:
I configured the animation, but I can't get the start of the technique to stay fixed where it starts
I will keep trying
it's better than before:
You already contributed a lot in trying to help me, thank you.