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10248  |  10250
Subject: 
RE: Friction Pulley question
Newsgroups: 
lugnet.robotics
Date: 
Mon, 24 Jan 2000 18:23:57 GMT
Original-From: 
Tilman Sporkert <tilman@activeswSAYNOTOSPAM.com>
Viewed: 
686 times
  
I doubt that the pulley gear with the rubber insert is meant for slipping. I
think it's rather the opposite - provide a firm grip on an axle so that it won't
slip sideways. That's important for the micromotor - it only has a very short
stub axle.

To allow for slippage, either use a white clutch disk, or a pair of pulleys with
a rubber band.

Tilman


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.

It seens it could be an option to any situation where you don't want the
motor to get stucked when the second axle stops, like steering mechanisms.
But I did not see any robot using it yet.

Mauro Vianna



Message has 1 Reply:
  Re: Friction Pulley question
 
(...) I think they would have designed the micro motor differently if they didn't want it to slip. ___...___ You hear, O LORD, the desire of the afflicted; you encourage them, and you listen to their cry --Psalms 10:17 (24 years ago, 24-Jan-00, to lugnet.robotics)

Message is in Reply To:
  Friction Pulley question
 
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. It seens it (...) (24 years ago, 24-Jan-00, to lugnet.robotics)

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