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Unread 06-01-2015, 00:06
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Re: Elevator counterweight / constant spring and ability to lift different number of

The fusee pulley is one solution. It automagically changes its "gear ratio" as the distance traveled increases, so you can use a gearmotor and optimize its lifting speed for the small stack but still have plenty of torque for the tall stack.
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Mentor, Bit Buckets team 4183. Assistant cat herder and dispenser of legendary tales.
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