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 Dear LEGO / 4357
4356  |  4358
Subject: 
Re: clutch
Newsgroups: 
lugnet.dear-lego, lugnet.technic
Date: 
Thu, 11 Sep 2003 00:35:14 GMT
Viewed: 
6138 times
  
In lugnet.dear-lego, Paul Kleniewski wrote:
> hi all
> 
> some time ago we were talking about clutches
> i think there is very simple idea to make clutch
> of course TLC should do it :))
> 
> i'll explain it
> we can use this http://www.peeron.com/inv/parts/4185
> or this http://www.peeron.com/inv/parts/2958
> 
> all TLC sould do is the rubber part
> which could look like this http://www.brickshelf.com/gallery/pixsrv/Ideas/Clutch/clutch01.jpg
> or like this http://www.brickshelf.com/gallery/pixsrv/Ideas/Clutch/clutch02.jpg
> 
> i think the first one could have the whole in the center which sould correspond with the 2958 rim
> and the second part should have studs (whole rubber) which should correspond to holes in the 4185
> 
> clutching would work on friction of rubber
> for the bigger models we should have second version :)
> 
> what do you think
> 
> pixel

One of my other hobbies (nitro RC Cars and trucks) uses this method.
http://www2.gpmd.com/image/t/trac4470.jpg
you will notice that the "gear" in the picture has holes all the way around.
(Similar to a large technic gear)....friction pegs slip into these holes. This
gives you some amount of adjustability based on how many pegs you choose to use.
http://www2.gpmd.com/image/t/trac9685.jpg

This is a very effective way of controlling slip. An RC car engine can easily spin up to 30000 rpms so dust from the pegs is quite apparent after some use. I doubt anyone will get a lego motor to spin that fast   :) .....but I would still be concerned with dust.

The pictures I listed do not show the rest of the setup, which involves a shaft
through the center of the gear..a spring some large washers and a nut. The more
you tighten the nut...the less slip you get...




~J



Message has 1 Reply:
  Re: clutch
 
"Jim Kovacs" <jkovacs@adelphia.net> wrote in message news:HL0xMq.4s6@lugnet.com... (...) rpms so dust from the pegs is quite apparent after some use. I doubt anyone will get a lego motor to spin that fast :) .....but I would still be concerned with (...) (23 years ago, 11-Sep-03, to lugnet.dear-lego, lugnet.technic)

Message is in Reply To:
  clutch
 
hi all some time ago we were talking about clutches i think there is very simple idea to make clutch of course TLC should do it :)) i'll explain it we can use this (URL) this (URL) TLC sould do is the rubber part which could look like this (URL) (...) (23 years ago, 10-Sep-03, to lugnet.dear-lego, lugnet.technic)

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