Subject:
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Re: LEGO Computers & Logic Gates
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 16 Mar 2004 21:50:38 GMT
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Viewed:
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1788 times
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In lugnet.technic, Martin Howard wrote:
>
> > > I've tried to do it mechanically. So far I've made NOT, AND, NAND, OR,
> > > NOR, a basic NAND latch (flip-flop) and a clocked NAND latch.
> > >
> > > Full details can be found via the LEGO link at my webpage:
> > >
> > > http://www.goldfish.org.uk
> >
> > That is cool Martin! The only thing I'd probably try is doing a NOT gate with
> > just a lever, like a 3L liftarm. May reduce backlash a little.
> >
> > It would be interesting to investigate a way to make them with a +V input of
> > some kind - maybe a motor somehow - that does the switching of the output,
> > similar to the compressor input of the pneumatic models. If that could be
> > done, it might make much larger circuits viable.
>
>
> Thanks for the comments. The 3L liftarm is a good idea. I did originally
> try something similar, but went with the rack and pinion system instead in
> the end.
>
> At the moment I'm trying to simplify the gates to the extent that I don't need
> any cogs at all. If I get that sorted, then the problem of gear slippage
> vanishes and we're back to developing only some sort amplifier that you and
> other have suggested. Although I'm not exactly sure of what you mean by
> using a motor to get a +V input?
Oh that was just my way of saying "amplifier" LOL. Getting an external power
source (+V is electronics talk) to power the output rather than just the input.
ROSCO
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Message is in Reply To:
 | | Re: LEGO Computers & Logic Gates
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| (...) Thanks for the comments. The 3L liftarm is a good idea. I did originally try something similar, but went with the rack and pinion system instead in the end. At the moment I'm trying to simplify the gates to the extent that I don't need any (...) (20 years ago, 16-Mar-04, to lugnet.technic)
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