Subject:
|
Re: LEGO Computers & Logic Gates
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Sun, 14 Mar 2004 00:48:14 GMT
|
Original-From:
|
Steve Baker <SJBAKER1@AIRMAIL.NETstopspam>
|
Viewed:
|
1222 times
|
| |
|
|
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 -------------------------
HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net http://tuxaqfh.sf.net
http://tuxkart.sf.net http://prettypoly.sf.net
-----BEGIN GEEK CODE BLOCK-----
GCS d-- s:+ a+ C++++$ UL+++$ P--- L++++$ E--- W+++ N o+ K? w--- !O M-
V-- PS++ PE- Y-- PGP-- t+ 5 X R+++ tv b++ DI++ D G+ e++ h--(-) r+++ y++++
-----END GEEK CODE BLOCK-----
|
|
Message has 2 Replies:
 | | Re: LEGO Computers & Logic Gates
|
| (...) 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 (...) (20 years ago, 14-Mar-04, to lugnet.technic)
|
Message is in Reply To:
18 Messages in This Thread:
  
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
