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Subject: 
Re: Help please: I'm trying to get two outputs from one shaft
Newsgroups: 
lugnet.technic
Date: 
Wed, 28 Sep 2005 21:48:06 GMT
Viewed: 
3496 times
  
In lugnet.technic, David Wegmuller wrote:
In lugnet.technic, Tony Hafner wrote:
I have one shaft that will be turned by a motor in either direction.  And I want
to get two different outputs, based on which direction the motor is turning.

When the Input shaft turns clockwise, Output 1 turns and Output 2 does not.
When the Input shaft turns counter-clockwise, Output 2 turns and Output 1 does
not.


Hi Tony,
Here is something I put together real fast during my lunch break:
http://wegmuller.org/v-web/gallery/OneInTwoOut The movies are quite big (4MB a
piece) but they show clearly how this thing works... Notice that it works in any
position as the mechanism is balanced.

An other approach to this is the "traveling worm gear": it relies on the fact
that Lego worm gear slide freely along cross axles. If you're interested, I'll
put one together tonight...

Speaking of worm gears: if you need the non-rotating output to be locked when it
is not driven, you can always use a worm gear between this mechanism and the
application point.

Greetings,
David Wegmuller

That looks a very nice simple solution to the problem, the simple solutions are
usually the best! I will certainly be using it to give more function from the
auxiliary output of the RC car unit.

Tim



Message is in Reply To:
  Re: Help please: I'm trying to get two outputs from one shaft
 
(...) Hi Tony, Here is something I put together real fast during my lunch break: (URL) The movies are quite big (4MB a piece) but they show clearly how this thing works... Notice that it works in any position as the mechanism is balanced. An other (...) (19 years ago, 27-Sep-05, to lugnet.technic)

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