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Subject: 
Re: A LEGO double-throw switch?
Newsgroups: 
lugnet.robotics
Date: 
Wed, 24 Aug 2005 17:39:31 GMT
Viewed: 
1349 times
  
In lugnet.robotics, Kevin L. Clague wrote:
45 degree angles are not so simple.  Do you have a solution in mind?  I know
that one of the bent liftarms supports 45 degree angles, but they can be kind of
gangly.

Actually, I was working on this very thing (45 degree angles) for a new GBC
module over the weekend.  (you remember GBC, don't you?  You know, the creature
that wouldn't die  :)  - thanks Steve for such a wonderful way to waste all my
free time  :)  ).

Using the double bend lift arms, you can achieve a 45 degree mount pretty
easily.  They may seem a little big at face value, but we are talking about
mounting them alongside a conveyor belt that moves 10x10x10 crates.  So, they
shouldn't seem too disproportionate.

That all being said, I still wonder if my idea about using a motor to turn
another motor that is connected to a polarity switch (detailed in a previous
post) would work.  Those Lego motors are awfully efficient.  I might just have
to try it at home tonight.  This would be the same cost (2 motors @ $15 each + 1
polarity switch @ $10) as the 4 polarity switch solution.  Plus, it would be a
little more elegant.

Bryan



Message is in Reply To:
  Re: A LEGO double-throw switch?
 
(...) Well, given that technic is quantized down to stud or half stud sizes, the solution may not be obvious. The easiest angles to create are due to 3-4-5 triangles. Most of the bent liftarms are bent based on those angles. The tri-blade liftarms (...) (19 years ago, 24-Aug-05, to lugnet.robotics)

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