Subject:
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Re: gearing problem, continued
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 5 Feb 1999 10:38:19 GMT
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Original-From:
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John A. Tamplin <jat@Traveller.COM&stopspammers&>
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Viewed:
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2968 times
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On Thu, 4 Feb 1999, dave madden wrote:
> I recently bought an 8735 Power Pack Motor Set which contained a
> white, 24T gear with the markings "2.5 . 5.0 Ncm"; I think this is the
> clutch gear you mention. It does not ratchet as you describe,
> however. It operates like an ordinary gear until the load exceeds a
> certain amount (my physics is weak, but perhaps "X Ncm" somehow
> describes a maximum torque) at which time the axle can turn
> independently of the gear teeth. That is, when the load is too great,
> the clutch slips and the motor doesn't stall, but the drive train
> doesn't move.
Yes Ncm is a unit of torque, Newton-centimeters. However, I have no idea
quantitatively how much torque that is since I haven't ever measured the
output of the Lego motors. Have you ever had it slip when the drivetrain
wasn't stalled?
John A. Tamplin Traveller Information Services
jat@Traveller.COM 2104 West Ferry Way
256/705-7007 - FAX 256/705-7100 Huntsville, AL 35801
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: gearing problem, continued
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| =>From: "John A. Tamplin" <jat@Traveller.COM> =>... =>Yes Ncm is a unit of torque, Newton-centimeters. However, I have no idea =>quantitatively how much torque that is since I haven't ever measured the =>output of the Lego motors. Have you ever had (...) (28 years ago, 5-Feb-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: gearing problem, continued
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| =>From: "John A. Tamplin" <jat@Traveller.COM> =>... =>Also, what exactly is the clutch gear and is it still available? I am =>assuming it spins freely in one direction and not in the other. I recently bought an 8735 Power Pack Motor Set which (...) (28 years ago, 5-Feb-99, to lugnet.robotics)
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