Friday, April 13, 2012 12:07:16 AM
At least, I can't come up with a better name. It's the part of the Argent's wing frame which is closer to the central frame, and includes the wing's axis of rotation going through the central frame's ball links. It may be not easy to compare this to parts of an organic bird's skeleton, I guess it could collectively represent the coracoid and the scapula. What I've been photographing above this evening, which is also the object I've been building and experimenting with through these days, is a mock-up of the same portion of the entire wing. I've ultimately come to the conclusion that I need such a test apparatus (replacing the entire and obviously cumbersome wing during motor tests), so I deemed it worth the effort. The assembled wings will also need to be modified to reflect the final design of that "dummy" test complex, but this mightn't require dismantling part of them and shouldn't be difficult. Changes were done to solve the problem that led to (quite catastrophic) cable failure in the last test, several days ago. This time, the complex is tougher than before, and the ropes were spliced for a longer distance (exactly 50 times the rope's diameter). As you can see, they were then made to run parallel to the front axis, instead of ending straight at the proximal rings: that's because, throughout the spliced portion, the cable's diameter almost doubles and wouldn't fit in the pulley at the end of the downstroke bar (also, it wouldn't fit in the shock absorber). I cannot modify those parts without compromising their strength, so I had to find a different solution. After quite some pondering, I ended up with that design. In the next days, I'll see what happens.