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 Robotics / 17604
17603  |  17605
Subject: 
Re: Discontinuous motion.
Newsgroups: 
lugnet.robotics
Date: 
Tue, 2 Apr 2002 22:59:47 GMT
Viewed: 
606 times
  
Bill,

    This exact same question was posted several months ago but I don't
remember the sollution that they came to.  This is my Idea:

    Ok you take two pulleys, pulley (A) is smaller then pulley (B).
You then conect the 2 pulleys via a linkage so that when you turn pulley (A)
pulley (B) continuosly changes directions.

    Now you take this two way motion and convert it back to one way and you
have your desired effect.

    To better illustrate the conversion of 2 way motion I have uploaded a
.dat file I did't create this .dat,  but I did build from it and the model
is compact and works well.  If anyone knows the author please respond to
this post so they will get the credit they deserve.

http://news.lugnet.com/cad/dat/models/?n=1771

Regards Chris



Message has 1 Reply:
  Re: Discontinuous motion.
 
(...) Thanks - but that's not what I'm after. I want the input shaft to be rotating continuously - and the output shaft to be stationary for some relatively large amount of time - then suddenly rotate for a short time. This cycle should be repeated. (...) (23 years ago, 3-Apr-02, to lugnet.robotics)

Message is in Reply To:
  RE: Discontinuous motion.
 
Try looking at the mechanisms at (URL) find this to be a great reference site for basic kinematics. bill -----Original Message----- From: Steve Baker [mailto:sjbaker1@airmail.net] Sent: Saturday, April 06, 2002 12:07 AM To: Lego Robotics Subject: (...) (23 years ago, 2-Apr-02, to lugnet.robotics)

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