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Subject: 
Re: Does anyone have the 8479 bar code truck?
Newsgroups: 
lugnet.build
Date: 
Sun, 10 Oct 1999 15:00:40 GMT
Viewed: 
723 times
  
In lugnet.build, Chris Phillips writes:
The clutch gear is the same basic size as a normal 24-tooth gear, but the
center (where the axle passes through) can spin freely if there is too much
force holding the gear in place.  I believe the gear says right on it that it
will stall against a force of 2 Newton-meters.  So if your motor is running up
"against a brick wall", the motor can keep turning, but the gear train will
just stall.

I had been meaning to correct the faulty information in my earlier post ever
since I got back home and actually looked at the gear.  The actual rating
printed on the gear says "2.5 o 5.0 Ncm", which I assume means that it will
stall somewhere between two-and-a-half and five Newton-centimeters. (Does
anybody know if I'm interpreting that correctly?)

That's a much more reasonable kind of number, and I should have realized that I
was way off before I made the original post.  Two Newton-meters would probably
snap a Technic beam like a dry twig!

This is the kind of mistake that sends interplanetary probes hurtling wildly
out of control.



Message is in Reply To:
  Re: Does anyone have the 8479 bar code truck?
 
(...) The clutch gear is the same basic size as a normal 24-tooth gear, but the center (where the axle passes through) can spin freely if there is too much force holding the gear in place. I believe the gear says right on it that it will stall (...) (25 years ago, 29-Sep-99, to lugnet.build)

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