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Old 04-05-2007, 11:28 AM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
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Another thing to consider is vibration, or ability of the tube to absorb vibration.
My recent experience with resonances inside tube (and spider assembly), triggered by running stepper motors is telling me that Al tube might be the worse choice here, if appropriate steps are not taken (like, a lack of layer of absorbing material inside the tube).
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