Subject:
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Re: LEGO Computers & Logic Gates
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 14 Mar 2004 00:48:14 GMT
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Original-From:
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Steve Baker <sjbaker1@ANTISPAMairmail.net>
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Viewed:
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1404 times
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Martin Howard wrote:
> OK I've not actually built a LEGO computer, but I have recently been
> considering the idea. The first step has been to develop logic gates.
> Rather than go down the pneumatic route, which has been pretty successful,
> 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.
The problem seems to me that the power to run the machine comes only
from the logic inputs. Thus, you'll have to push insanely hard on
a one bit input in order for it to operate any reasonable amount of
logic.
Maybe you need motorized 'amplifiers' at frequent intervals in the
circuits.
---------------------------- Steve Baker -------------------------
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HomePage : http://www.sjbaker.org
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Message has 2 Replies:
 | | Re: LEGO Computers & Logic Gates
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| (...) That definately is a problem, after a couple of gates it grinds to a halt - a mixture of the slippage between gears and the problem you have identified. I had envisaged that I could use a piston arrangement to drive the clock signal backwards (...) (21 years ago, 14-Mar-04, to lugnet.technic)
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