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#9
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Re: Telescoping arm
We (Team 343-Metal in Motion) used a three segment arm like 233 this year. We drove the first section with a lead screw and a cable was wrapped around two pullies on the second. (Similar to the diagram above). We used box tubing of 3X2" for the first stage, 2X1.5" for the second and 1X1" for the third. We had intended to do the cut outs like 233 but didn't need the weight so we left them whole. If you're looking for more details, PM me and I can send you the cad drawings.
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