I am not following. (I am not sure if you are saying this but I could instead of using one bearing for each connect point I could use two and increase my rigidity.)
Side note: there is only really a need for two bearings. The arm that attaches to the middle can attach directly to the tool holder. For the animation, I saved time by making them all the same but when I get ready to print I will definitely want to get rid of one bearing. Also, I just stuck a UBIS in the design. I realize that I need to minimize the length of the hot end because any wiggle will get magnified toward the end of the nozzle. I will gladly take suggestions on that too. The RepRap Morgan probably has the closes design to this. I will dig through Quentin Harley's plans when he releases them soon.
Side note: there is only really a need for two bearings. The arm that attaches to the middle can attach directly to the tool holder. For the animation, I saved time by making them all the same but when I get ready to print I will definitely want to get rid of one bearing. Also, I just stuck a UBIS in the design. I realize that I need to minimize the length of the hot end because any wiggle will get magnified toward the end of the nozzle. I will gladly take suggestions on that too. The RepRap Morgan probably has the closes design to this. I will dig through Quentin Harley's plans when he releases them soon.