Subject:
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Re: Friction Pulley question
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 24 Jan 2000 05:09:37 GMT
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Viewed:
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636 times
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"Daniel A. Segel" <lego-robotics@crynwr.com> wrote in message
news:4.2.0.58.20000123200749.00962930@netcom8.netcom.com...
> At 04:10 AM 1/24/00 +0000, Mauro Vianna wrote:
> > This pulley was mentioned in Dave Baun book (scanbot, page 167).
> > Did anybody use the friction pulley from mindstorms kit to do connect 2
> > axles? It has a cross hole on one end and a rubber ring in the other that
> > seens to fit an axle.
>
> I have three of these pulleys, and they're all too tight to allow any
> slipping at all. Maybe when they're a little older they'll function more
> like you're suggesting.
>
> Daniel Segel
I thought about that too. If you use if with after some gear reduction
instead of attaching directly to the motor axle it may work. I'm trying to
use that to use the RCX to control steering in the #8445 (Indy car) set.
My concern is that I'm not sure if it was really designed to be used this
way. I'm afraid that it may damage the rubber ring. But I couldn't figure
any other use to that ring also. In fact, I didn't notice that ring until I
read the comment in the book. :)
Mauro Vianna
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Message has 1 Reply:
 | | Re: Friction Pulley question
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| (...) The rubber ring grips the stud on the micro motor. You can then use it as a pulley or to connect an axle to the micro motor. They appear to grip tightly enough that they never slip within the torque range of the micromotor. Don't worry about (...) (24 years ago, 24-Jan-00, to lugnet.robotics)
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Message is in Reply To:
| | Re: Friction Pulley question
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| (...) I have three of these pulleys, and they're all too tight to allow any slipping at all. Maybe when they're a little older they'll function more like you're suggesting. Daniel Segel -- "Ich bin ein Geleeschaumgummiring." daniels@netcom.com (24 years ago, 24-Jan-00, to lugnet.robotics)
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