Subject:
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Re: nxt controller specification
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Newsgroups:
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lugnet.robotics.nxt
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Date:
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Wed, 13 Feb 2008 20:10:58 GMT
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Viewed:
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32676 times
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In lugnet.robotics.nxt, Elizabeth Mabrey wrote:
> It stated tha the NXT with "Stalled torque" up to
> 50 N.cm. 50N... it equates approximately 10lbs?!
Yep. But note that Philo was talking about *torque*, not force. A torque of 50
N•cm means that it could supply a force of 50 N with a lever arm of 1 cm, or a
force of 500 N (more than 100 lbs) for a lever arm of 1 mm... but that would
imply an axle just 2 mm across, which is a bit unrealistic :) . Yes, those
motors have a very hefty torque... most of my tricks for getting high torque for
things like Sumo robots are not nearly as important any more.
Note that the actual torque you can sustain with the NXT motors is almost
certainly less than this - Philo used a separate current source, and the stalled
current for the NXT motors is around 2 A (yes, amps)... which even the NXT brick
can't keep up.
--
Brian Davis
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Message is in Reply To:
 | | RE: nxt controller specification
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| Thank you for clarifying this, Brian. I was reading (URL) It stated that the NXT with "Stalled torque) up to 50 N.cm. 50N... it equates approximately 10lbs?! That is without any further gearing down, but just the NXT motors!? Wonder if anyone has (...) (16 years ago, 13-Feb-08, to lugnet.robotics.nxt)
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