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Malte Ahlers from Germany lucked into some FESTO hardware, and used it to build a robotic gripper (site is in German):

I was intrigued by the FESTO FinGripper mechanism which they use for their “Bionic Handling Assistant” so I asked the guys from FESTO if they would give me three samples of the FinGripper fingers — I was lucky, they did :-). These FinGripper fingers are interesting because of their bionic “Fin Ray Effect” which is inspired by the tail fin of teleost fishes. I developed a simple mechanism for actuation of the FinGripper fingers. The result is a very simple, robust, flexible and adaptive robotic gripper which works well with many different kinds of objects. I also did some experiments on force feedback from the gripper. I chose a very simple approach and continuously measure the current of the actuating motor. The current is of course depending on the “mechanical resistance”!

John Baichtal

My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal nerdage.net


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