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I also have decided to integrate the tipping bars when I have feedback with this revision, this way I will be able to do so efficiently.
Next steps are of course to get feedback, but also settle on the parameters, evaluate the way to attach the support plate to the drone and start printing.
Author: Conall Kingshott Date:
Overall, this looks really good. I think the modifications at the top seem really solid. Everything up here I’m happy with after my first look.
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The black 3D printed foot part here also looks really good to me. The big thing I think we’ll need to work on is the center plate. First note is that the angles it goes at right now to fit around the tube aren’t something we can manufacture right now. We would normally make a part like this on a water jet, but a water jet can only cut straight up and down. There isn’t a good way to make a cut like this on a mill or drill press. It’s not too big of a deal as you could just make it a 2D shape with clearance, but it’s worth thinking about.
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As far as what you have mocked in as the center plate right now, I don’t want to comment too much because it’s a placeholder. What I will say is that we may need to consider CF tubing for these cross braces because we are likely going to have a good bit of compressive force on these cross-members when landing. CF isn’t very good in compression, but it’s light and we can get tubing which will give a much higher moment of inertia which should help. My concern if we did out of thin aluminum like this is that it would bow, and thicker aluminum would be too heavy. I think we would want to allow the 3D printed foot to include mounting spots for CF cross-braces. Then you’d probably need to make a square for the cone to fit in with an open bottom, kind of like this, where red is CF tube and blue is the water collection mechanism.
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As far as the exact path forward on that particular issue, I think I need a bit of time to think about it because it’s not immediately clear to me. Hoping to talk to some combination of Alison Thompson Smile Khatri and Evan Janakievski to figure out a path forward.