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Let's forget about the friction for now and say the resisting force of the material, P, the screw is being driven into acts only at the tip while the screw smashes the material or pushes it out of the way. If we unwind one thread from the screw, stretched it flat, it is going to work as a ramp with the slope angle of $\alpha = pitch/2\pi r$ And the force ...


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Solar Mike is correct, but requires more explanation why. The Bernoulli equation is an energy conservation law. The pump is imparting energy on the fluid, therefore, needs to be accounted for as a pressure addition term. When you applied continuity initially, you are assuming the flow is incompressible (correct assumption) with no energy addition between the ...


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I will add my answer to the others although the results will not be much different. The way I see it the following parameters are the most important: The worst case scenario for the bending of the beam: Instead of the open handle (which is a four point bending), I would go for the close handle (which is three point bending). This is a worst loading ...


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Estimating force You can calculate the section assuming you are as strong as the world record holder for deadlift, which I think is 500kg. Meaning any maneuver, even acrobatic, that can cause a force imparted by the bar on your hands greater than 500kg will cause you to lose grip and let go of the bar. Assuming a distance of 40cm between your hands on the ...


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Nothing fancy. Just mild steel. Assuming you go with at least 1"/25mm diameter for ergonomic purposes, go with a wall thickness of 3/16"/5mm which already should be overkill. At 6ft/2m long and 1"/25mm diameter, I am skeptical if 1/8"/3mm wall thickness will be sufficient. I doubt it would break but it might flex under dynamic load. And ...


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There are a lot of ways. To cut cost, reduce your expensive sensors to a bare minimum - probably just measuring what goes into the reactor. Controlling by mass tends to be expensive compared to by volume or pressure. Ideal gas law is your friend here. Pressure times volume is proportional to number of particles times temperature. It's pretty inexpensive ...


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