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 Robotics / 14882
14881  |  14883
Subject: 
Re: I wish Lego made an "Anti-Backlash Gear"
Newsgroups: 
lugnet.robotics
Date: 
Wed, 4 Apr 2001 04:52:15 GMT
Original-From: 
Steve Baker <SJBAKER1@AIRMAIL.stopspammersNET>
Reply-To: 
sjbaker1@/StopSpam/airmail.net
Viewed: 
5383 times
  
Eric Sophie wrote:

The CD-Rom does not explaiin how to use this piece, but in an earlier post I
wrote:

Ok, this is called a "Slip Gear" or "Torque Gear" It is used to prevent over
rotation by means of an internal clutch, the 2.5 - 5.0 NCM I belive means
the range of operable force applied before the clutch disengages. Nano
Centemeter of force.

(I think we established that this is Newton centimeters - a force of between
two and a half and five Newtons applied at a distance of one centimeter will
cause the gear to slip...or half that at 2cm, a third at 3cm and so on).

They are really very handy if you can gear them for the proper application.

That's true - but I find they are almost always WAY too stiff for the
applications I have - by the time they've started to slip, the motor
has usually stalled - or ripped the robot to bits.

--
Steve Baker   HomeEmail: <sjbaker1@airmail.net>
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Message has 2 Replies:
  Re: I wish Lego made an "Anti-Backlash Gear"
 
(...) Hmm interesting. I only have one clutch gear (the one that came with RIS 1.5), and it is too *loose* to really be at all functional. I've also read that the clutch force tends to drop in them the more they are used. (24 years ago, 4-Apr-01, to lugnet.robotics)
  Re: I wish Lego made an "Anti-Backlash Gear"
 
Oh , right , Newtons , I was saying Nano centameters! thanks....I guess you need a fair amount of gearing and distance to use these gears effectivly along with opposing resistance, I love the way it works in the hand I developed, infact in included (...) (24 years ago, 4-Apr-01, to lugnet.robotics)

Message is in Reply To:
  Re: I wish Lego made an "Anti-Backlash Gear"
 
The CD-Rom does not explaiin how to use this piece, but in an earlier post I wrote: Ok, this is called a "Slip Gear" or "Torque Gear" It is used to prevent over rotation by means of an internal clutch, the 2.5 - 5.0 NCM I belive means the range of (...) (24 years ago, 4-Apr-01, to lugnet.robotics)

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