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#28
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Stainless doesn't always imply heavy...
There are a lot of thin wall stainless tubes there. You can easily find them in 1.5 OD with .035 walls. These tubes would be strong like bull but only weigh about 1/2 lbs per foot.
Steel is basically 3 times heavy, but it is also 3 times stiffer and 3 times as high of a yeild strength (i.e. 3 times stronger). Steel (stainless or otherwise) can be a good choice. I don't use very much on the robots I have a say about, but I don't know what their machine is supposed to do... Joe J. |
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