Subject:
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Re: baffled by a part in RIS 1.5
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 3 Apr 2001 11:32:16 GMT
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Viewed:
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1314 times
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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. In short I used one in each hand of the Robot I am
building, after gearing the the motor 1 or two "steps" (8 to 24 tooth) I
then inserted the Torque gear, and ran the axle straight to a worm gear
assymbly, the hand closes with a good deal of force, then when the fingers
reach the thunb, the force is greater then the presecribed limits then the
gear starts to slip and thus preventing damage to the structure.
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=39790
They are really very handy if you can gear them for the proper application.
In lugnet.robotics.rcx, Dave Mee writes:
> Hello!
>
> There is a part in my RIS set which i have never used. Nor can I think of
> what it could be used for, or describe it without using words like "weird"
> and "what the".
>
> It's a thick white gear, 1 stud wide by three studs in diameter. One one
> side, "LEGO" is inevitably stamped around it, and on the other, the cryptic
> text "2.5 - 5.0 Ncm", twice. It has a grey bit and a hole in the middle
> suitable for a rod (you know, those extruded plus signs whose length you can
> never discern until you discover you've used the wrong one at the start of
> your model, and everything has to come apart to finish it.). This middle
> section rotates separately.
>
> Having grown up with computers, physical things make me dizzy when I think
> about them. What on earth is this piece for? I have no idea. I can't even
> start to think what it could be used for - it seems utterly pointless, a
> gear whose centre rotates separately from the rest of it!
>
> Please... there must be someone with a better answer than 'mouse frisbee
> (thick)'.
>
> TIA!
>
> Dave
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Message is in Reply To:
 | | baffled by a part in RIS 1.5
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| Hello! There is a part in my RIS set which i have never used. Nor can I think of what it could be used for, or describe it without using words like "weird" and "what the". It's a thick white gear, 1 stud wide by three studs in diameter. One one (...) (24 years ago, 2-Apr-01, to lugnet.robotics.rcx)
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