 | | Re: A better full adder!
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(...) Kevin (21 years ago, 26-Jun-03, to lugnet.technic, lugnet.robotics)
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| | what parts are left over after building 8448 gull wing?
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Trying to sort out all the parts that should be in a 8448 supercar set. I have built the gull wing version. What parts should I have left over, if any, that are needed to build any of the other versions? (21 years ago, 26-Jun-03, to lugnet.technic)
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| | Re: Mechanical Memory for Computing
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(...) Actually a byte is whatever you define it to be - a nibble is generally half a byte, and a word is generally 2 bytes. I haven't seen a machine using 4 bit bytes, but I've seen 8, 16, 32 and 64. And I'm sure there are other weird ones floating (...) (21 years ago, 26-Jun-03, to lugnet.technic, lugnet.robotics, lugnet.build, lugnet.off-topic.geek)
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| | Re: Mechanical Memory for Computing
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Very cool design. (...) Question: Why are you calling 4 bits a byte? 4 bits is a nibble, while 8 bits would be a byte. Obviously the design can be extended to 8 bits like you mentioned. They you would have your byte. Michael (21 years ago, 26-Jun-03, to lugnet.technic, lugnet.robotics, lugnet.build)
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| | Re: A better full adder!
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Hey, that's great! Now it's nice and symmetrical with 3 columns of 4 switches... something satisfying about that. :-) Now, all I need is 4 more switches and I can build it! Cheers, Mark (R) (...) (21 years ago, 26-Jun-03, to lugnet.technic, lugnet.robotics)
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| | A better full adder!
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I realized this afternoon that I could cull a switch from my earlier design. It's now down to 12 switches from 13. 4 switches ganged onto each piston. The wiring schematic is here: (URL) on how to interpret the diagram can be found in an earlier (...) (21 years ago, 26-Jun-03, to lugnet.technic, lugnet.robotics)
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| | Re: Mechanical Memory for Computing
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(...) About half-way down this page (URL) is a diagram and short discussion of a possible design for molecular level RAM. The diagram shows 2 memory cells of 2 bits each and the mechanism to select which memory cell is being read/written. In my LEGO (...) (21 years ago, 25-Jun-03, to lugnet.technic, lugnet.robotics, lugnet.build)
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| | Re: Mechanical Memory for Computing
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(...) <SNIP> (...) Do you happen to have any links to the molecular RAM design you are referencing? It would be very cool to compare and contrast your excellent model with the "real world" counterpart. Jona (21 years ago, 25-Jun-03, to lugnet.technic, lugnet.robotics, lugnet.build)
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| | Re: Mechanical Memory for Computing
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(...) I concur. It's only a matter of time now before someone figures out how to build Babbage's Difference Engine from Lego. Becky (21 years ago, 25-Jun-03, to lugnet.technic)
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| | Re: Mechanical Memory for Computing
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Brilliant! Positively brilliant! >> Mark (21 years ago, 25-Jun-03, to lugnet.technic, lugnet.robotics, lugnet.build)
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| | Mechanical Memory for Computing
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Inspired by the recent pneumatic computing thread I have created some LEGO mechanical memory. It is an adaptation of a possible design for molecular level RAM. The folder is at (URL) with details below. In this overall view of it (URL) the sliding (...) (21 years ago, 25-Jun-03, to lugnet.technic, lugnet.robotics, lugnet.build, lugnet.announce.moc)
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| | First Reaction to the Takanuva set (8596)
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There is no way that, in the movie, Takanuva does not come to a screeching halt in front of the other Toa and throw a shower of dust on them. Is there a biker term for that maneuver? (21 years ago, 24-Jun-03, to lugnet.technic.bionicle, FTX)
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| | Re: LEGO design patterns... you know, there's a book in that, I'm sure of it!
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(...) LOL actually most (all?) Harleys are belt drive. When is belt drive a better option? But I agree a compendium of such "secrets" would be a good thing. But it'd take a lot of time & effort to compile, and that's after you've taken the abstract (...) (21 years ago, 24-Jun-03, to lugnet.technic)
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| | Re: LEGO design patterns... you know, there's a book in that, I'm sure of it!
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(...) No, you're spot on. Gears and chain drives are both viable ways of transmitting power... but the real trick is to know when each one is a good choice, It's not even enough just to say "chains are good for bikes and gears are good for cars".... (...) (21 years ago, 24-Jun-03, to lugnet.technic)
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| | Re: Blacktronicle II: Bohrokitron
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(...) I was a bit less than surprised, actually. Paul Coombs already mentioned that his Gremlin MOCs weren't very well-received, and this one is quite similar in concept. (...) Isn't that like saying a team is on a two-game winning streak? I've made (...) (21 years ago, 24-Jun-03, to lugnet.technic.bionicle, lugnet.build.mecha, lugnet.space, FTX)
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| | Re: LEGO design patterns... you know, there's a book in that, I'm sure of it!
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(...) I would somewhat disagree... based on two points: 1) I don't think this type of info is that easily found. Now this is just my feeling, not really a statistic based statement. The only *decent* site I've ever found that presented a nice (...) (21 years ago, 24-Jun-03, to lugnet.technic)
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| | Re: Blacktronicle II: Bohrokitron
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(...) Yes, they do come in the Darth Vader set, but they also come in the Super Battle Droid set. I can't be 100% sure of where those specific pieces came from, but I do happen to have a recently opened SBD sitting next to my desk (which is where (...) (21 years ago, 24-Jun-03, to lugnet.technic.bionicle, lugnet.build.mecha, lugnet.space, FTX)
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| | Re: LEGO design patterns... you know, there's a book in that, I'm sure of it!
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One thing that I find really annoying about this kind of book/CD/website, is that it rehashes general mechanical knowledge. While there is no argument that this is important information, it isn't lego specific and is available in a million other (...) (21 years ago, 24-Jun-03, to lugnet.technic)
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| | Re: LEGO design patterns... you know, there's a book in that, I'm sure of it!
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(...) A link to an HTML version of Fred's original article: (URL) those who may not be familiar with it. (...) I'm wondering about the first part of your statement Larry. Unless I'm misunderstanding... isn't the 'why' so that you can share knowledge (...) (21 years ago, 23-Jun-03, to lugnet.technic)
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| | Re: LEGO design patterns... you know, there's a book in that, I'm sure of it!
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(...) Nod. Those were mentioned by me as sources or seeds for such a dynamic repository rather than as an end state. (...) WHY is key in my book. Else it's just being clever for cleverness's sake. As in the software Design Patterns you reference, (...) (21 years ago, 23-Jun-03, to lugnet.technic)
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