During the night I realized something important about my design. As a test, the arm should be able to allow me with ease to lift myself on a bar with that one arm. Because of how one’s arm moves to lift oneself while doing a pull-up, I have made the observation that I will need to double up and have two pistons per arm, not one.
This picture is of my arm before and after lifting myself for a pull-up. As one can see, my bicep and my forearm are not the only muscles that pull closer to each other in my pull-up; my tricep is also pulled closer to my side. Therefore by using two pistons I can minimize the stress on the users muscles, as it gives support to both groups of muscles that are working during the pull-up.
On a side note, I have recently visited a place known as Tech Shop. Tech Shop is an organization where one can pay for a membership and have access to a wide variety of machines and parts needed to build projects like my own; however, their building that is closest to me is closing down, and it will take a few weeks for them to find a new plot for their building. This will hinder my ability to actually build my arm, but I can spend more time on the design of my arm and work on the design of my supports and testing instruments.
No comments:
Post a Comment