I got many questions about the arm piece regarding overall flexibility.
In particular, it the overall range of motion and degreed of freedom would be enough to perform a whole push-up. I have simulated this beforehand on Fusion360 and results seemed to be ok.
However real test has always the last word, so here is a push-up test wearing the whole arm.
Movements are quite smooth and also support is provided by the rear tendons which aid arm extension.
I might updated the wrist upper piece design in order to reduce contact with the hand which might feel disturbing after continuous usage. Tests with the whole exoskeleton will follow.
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