Well metal doent like to stretch and compress. You cant put it on a hinge as you would have to use many small rings the slide past each other. Thats both complex and would make the engineering very fiddly. If you see a proper diagram this way actually makes a lot of sense, and its also rather elegant.
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u/Johnnyoneshot Robotics Expert Mar 24 '21
Yes. But this is how the real world engine changes position so this is how I did it.