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Subject: 
Re: Pneumatic "One Leg at a Time" Robot Circuit
Newsgroups: 
lugnet.technic
Date: 
Wed, 14 Sep 2005 14:53:53 GMT
Viewed: 
3704 times
  
I had a surprise the other day.  Looking on my old computer I discovered
that
I'd drawn a 1+4 AND gate for myself long before I joined the online
community!
I wouldn't quibble about credits, though it just shows how great minds
think
alike!  The discovery was not a surprise in one sense, because I wondered
how I
had developed my octopus arm without first making an AND gate.  The
octopus arm
is an old design too, but it combines single and differential logic.  I
think I
drew a first circuit sketch and then minimised it, probably removing a
third of
the switches!

Quibbling about credit wouldn't do any good, because my invention was
independent from yours.  I've never had access to your computer so clealy
mine
was independent ;^)  It is interesting that it took you so long to
recognize my
1+4 as a valid AND gate (even though you already invented it and forgot)


How many different 'designs' could one come up with for an AND gate in LEGO
pnuematics anyway?

-Rob
www.brickmodder.net



Message has 2 Replies:
  Re: Pneumatic "One Leg at a Time" Robot Circuit
 
(...) Not many efficient ones, but it very much depends on the type of logic, whether it's differential (a pressure hose and a leak hose to a cylinder) or single (a few switches daisy-chained for an "all legs up" condition) If anyone were to patent (...) (19 years ago, 14-Sep-05, to lugnet.technic)
  Re: Pneumatic "One Leg at a Time" Robot Circuit
 
(...) I've come up with three AND gate technologies so far. Also I've come up with three OR gate designs too (those are differential output, plus I have a single pressure OR too). I've only come up with one differential XOR and a single pressure (...) (19 years ago, 15-Sep-05, to lugnet.technic)

Message is in Reply To:
  Re: Pneumatic "One Leg at a Time" Robot Circuit
 
(...) I understand that leg 0 is moved up forward then down, leg 1 is moved up/forward/down, leg2 is moved up/forward/down, leg 3 is moved up/forward/down, and finally leg 0, leg 1, leg 2 and leg3 are moved back. I don't quite understand why you (...) (19 years ago, 13-Sep-05, to lugnet.technic)

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