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Subject: 
New 3-Input Multi-function Pneumatic Logic Gate
Newsgroups: 
lugnet.technic
Date: 
Tue, 6 Sep 2005 15:51:10 GMT
Viewed: 
3788 times
  
Here's my latest pneumatic logic gate with differential inputs and outputs.

This one has 4-switch reversers to make it configurable for almost any
combination of inputs.  Replace the reversers with permanently swapped hoses
when you have the function you want.

It uses two of Kevin's 4-switch AND modules.

You can make the output go high in 1, 3, 5 or 7 of the eight combinations of
inputs A, B and C.  A table shows which combinations of reverser settings do
what.

http://www.brickshelf.com/gallery/mbellis/Technic/Pneumatics/Building-Blocks/pneumatic_3_input_multi_function_gate_circuit.jpg

PLMKWYT

Mark



Message has 3 Replies:
  Re: New 3-Input Multi-function Pneumatic Logic Gate
 
(...) Hi Mark, It sounds like the swiss army knives of pneumatic logic gates! Seriously though, it is going to take some serious study on my part to understand what all is going on here. Are you putting polarity reversors on all inputs and outputs? (...) (19 years ago, 6-Sep-05, to lugnet.technic)
  Re: New 3-Input Multi-function Pneumatic Logic Gate
 
(...) Mark, Aren't Reversor R1 and Reversor R4 redundant? R1 can reverse the A input, which drives a piston which controls a switch, who's output is reversed by R4. I see no reason for the piston and switch between R1 and R4, unless you are just (...) (19 years ago, 6-Sep-05, to lugnet.technic)
  Re: New 3-Input Multi-function Pneumatic Logic Gate
 
(...) I am really getting the feeling that between you guys, you are really pushing pneumatic logic generally, not just in terms of Lego. Have you thought of taking some of your Lego logic designs, and miniaturising them into blocks? Even better is (...) (19 years ago, 6-Sep-05, to lugnet.technic)

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