Hi guys thanks a lot for that. The screw is bent in possibly two directions at the end so I think trying to straighten it might not work, that coupled with my basic lack of mechanical aptitude. The lead screw has a shaft and baring on one end (the other end than on the video) but I don't know if that is a push fit or a screw fit. I assume I need to take it out in order to fit it to another one.