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Subject: 
Re: pneumatic cylinder: why not hydraulic ??
Newsgroups: 
lugnet.technic
Date: 
Thu, 8 Apr 2004 15:31:38 GMT
Viewed: 
3033 times
  
In lugnet.technic, Kevin L. Clague wrote:

<snip>


I have created a pneumatic polarity reversor using four pneumatic switches.

I did an analysis and my pneumatic multiplexor works as a hydraulic switch that
does not have a free release.

http://www.brickshelf.com/gallery/kclague/Computing/p5280146.jpg

The above picture contains two pneumatic multiplexers.  One facing us, and the
other away from us.  For example, the gray hoses work with one mux, the black
(on the opposite face) work with the other.

I use these to do the polarity reversing needed to make my pneumatic quadraped
and hexapods be able to modify their walking behavior.

The interesting thing to note is that no matter what way the switches are
flipped there is no release.  Using one of these muxes gives you a hydraulic
switch with *no free release*.

Actually this multiplexer is more efficient because it uses less parts:

http://www.brickshelf.com/gallery/kclague/Computing/p6050069.jpg

Kevin



Message has 1 Reply:
  Re: pneumatic cylinder: why not hydraulic ??
 
(...) I get the impression you've complicated things by putting different switches at different lever angles. My reverser idea puts the switch lever pivots 16mm apart, all in a line with 2-beams between: BSBSBSBSB along a beam of length 17 holes, so (...) (21 years ago, 8-Apr-04, to lugnet.technic)

Message is in Reply To:
  Re: pneumatic cylinder: why not hydraulic ??
 
(...) I have created a pneumatic polarity reversor using four pneumatic switches. I did an analysis and my pneumatic multiplexor works as a hydraulic switch that does not have a free release. (URL) above picture contains two pneumatic multiplexers. (...) (21 years ago, 8-Apr-04, to lugnet.technic)

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