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Originally Posted by zc923
One word, pnumatics.
Its aprox. 20-25 lbs.
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Eww, must take forever to extend multiple times then :-/ Pneumatics can be obnoxious when going that much of a distance, and if you dont use a big cylinder for such a long arm you don't have much strength. I'd be curious to see what happens after lifting one or two tetras, seems like it would take awhile to recharge pneumatics for such a long thing.