This is my first experience with flexible tubing and animation; this is a small project I found on you tube. My question is simply "why does the tube length change when the trolley is moved?'
Without really looking at your model, I would guess that you don't have the length of the spline that creates the tubing defined. It looks like you have the start and end point of the spline defined, and when the end point of the spline moves, it just shrinks the spline.
That being said, I think it might be a little difficult to control the spline so that it keeps a specific length and also moves the end point.
Hope this helps.
Thank you Victor,
This is what happened after I fully defined the spline. Also, this is where the little project is;
What I am trying to accomplish is showing the correct working action of hydraulic hoses and cylinders. Maybe this is not a good study example. The top image is the starting position.
You will need to control the spline handles to get the "hose" to look right.
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