Thank you for showing your setup. It really helps me figure out how to build my 6X6 and see what other parts I can use. I'm still looking for parts and will start my build in 2023. Right now I don't have much on my channel but please check it out if ya want to.
When welding, you should make sure that you do not pull the pendulum back and forth too quickly and evenly. Otherwise you weld only on the surface around and the seams could break
Did you ever heared about cardan shaft angles and how the ends should be established? The ends should be in one plane... As you did- you will have vibration
Bonjour je vient de voir ta vidéo tu a fait une grosse bêtise au niveau de la transmission de sortie boîte !! Les chapes de cardans d un même arbre doive être dans le même plan c important. Tu les a mis décalés de 90 degrés. Bonne continuation. Yann
Dear brother You have destroyed all the laws of physics and mechanics. You have the equipment and devices, but you need to learn some basic physics and mechanics. I wish you all the best