Subject:
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Re: Pneumatic "One Leg at a Time" Robot Circuit
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 14 Sep 2005 18:31:23 GMT
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Viewed:
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7719 times
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In lugnet.technic, Rob Hendrix wrote:
> > > 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
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 such a simple design it wouldn't be worth the cost,
since there is no commercial gain to be had anyway.
I wasn't asking you for credit Kev, it's just that the situation has arisen many
times with more commercial inventions where two parties have the same design.
I like having other people to spur me on to new levels of complexity or
simplicity, but also the fact that we're a community working together.
Inventing and forgetting is something I do too much of - I must be too busy!
I must go through my rough sketches for the last 9 years and see if there are
any other gems lurking in there! I'm sure I doodled extensively on pneumatics
when I wasn't drawing track layouts!
Mark
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