![]() Art Mezins on The Glitch That Brought Down Japan’s Lunar Lander.paulvdh on C++17’s Useful Features For Embedded Systems.Jan on A Real-World Experience In PCB Dye-Sub Printing.Ewald on The Glitch That Brought Down Japan’s Lunar Lander.Piotrsko on The Glitch That Brought Down Japan’s Lunar Lander.dru on This Week In Security: Barracuda, Zyxel, And The Backdoor.Greg A on C++17’s Useful Features For Embedded Systems.You also want to ensure the start / stop or “seams” are not at the corners where the thin element attaches, that leads to very early failure.īooks You Should Read: Red Team Blues 12 Comments ![]() Very low fatigue resistance but for low movements and if designed in the right constraints it is workable but nylon and variants are the go to for flex - or steel which has an endurance limit. upgraded my printer to do nylon because of this and similar flexure needs after fatigue testing a design with a stepper motor things crack easily in most common filaments. These are neat, and if you want to expand or create additional pieces or understand how to make a mechanism that translates but doesn’t shift in a perpendicular axis to take a look or other clever things it’s quite the useful thing and accessible to follow. Professor Jonathan Hopkins at UCLA has published his entire course videos last year on compliant mechanisms. I think it’s worth pointing out another resource. Posted in Parts Tagged 3d printing, flexure, GrabCAD, mechanism Post navigation Flexures can make some delicious mechanisms, and neat 3D printable input devices. We see flexures here quite a bit, like this nice demonstration of achievable accuracy. And, now we’ve got some more design examples to use, so why not flex your flexure muscles and send one to the 3D printer and have a play? We’re not even going to try to name examples of flexures in the natural world. The Mars rovers use flexure-based suspension, scientific instruments (interferometers and the like) make use of them for small motions where specific axis constraints are needed, and finally, MEMS accelerometers and gyroscopes are based entirely upon them. It’s not just those super-cheap mechanisms in throw-away gadgets that leverage flexures, it’s much more. (Links to the first three sets: Set00, Set01, Set02 but check the author’s collection page for many others) This collection is quite extensive, looking like it could solve a huge variety of flexure design problems. In the end, decided to generously release his work open source, for all to enjoy. GrabCAD designer hails from Ukraine, and due to the current situation there, plans to sell a collection of flexure building blocks became difficult. ![]() Providing constrained movements with small displacements, complete with controlled tension, they can be rather tricky to design. ![]() Flexures are one of those innocent-looking mechanisms that one finds inside practically any kind of consumer device. ![]()
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