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Trevor Woodhouse
Приєднався 6 лис 2010
ExplanationDigicomp
An explanation of my previous video: k'nex computer
If you have not seen it, do not watch this video - watch the other one first
Sorry for the rough filming
If you have not seen it, do not watch this video - watch the other one first
Sorry for the rough filming
Переглядів: 1 559
Відео
K'nex Computer
Переглядів 54 тис.14 років тому
This is a k'nex 3 bit "digital" computer that I made. The original design came from Digicomp I, a simple computer made in the 60s. Depending on how it is programmed, this k'nex machine can add, subtract, compare, multiply, divide, solve logic problems, and even play games. For the video, I focused on one of the most complex processes the computer can handle: the game of Nim. Here is a full deci...
Hi Trevor, I just tried to reach your site to download the instructions for building your wonderful KNEX computer but could not, please help😊
hello, i was wondering if you can forward the original instruction pdf of the knex digicomp. because it is no longer available if you use the link in the description of your video. i have ordered many knex parts to make my own version of it. Greetings.
hello, i was wondering if you can forward the original instruction pdf of the knex digicomp. because it is no longer available if you use the link in the description of your video. i have ordered many knex parts to make my own version of it. Greetings.
Thanks for your great video and inspiration to build one myself!
001 is not 2, it is 1, the first digit is multiplied by 1, then 2, 4, 8 and so. 001 is the first digit( 1) multiplied by 1 to get 1, so 001 is 1 not 2
3 digit binary is 4 then 2 then 1 right? The video is 4:21. Coincident? I think not
But can it run CS:GO?
that's nothing like a computer, wait until you watch Dan Ehrman`s K'nuter.
I just saw that one...
They are both computers technically
until you realize they both stopped making videos of them years ago.... i would love it if someone actually created a finalized one with a ez imput and output
Milkev Gaming I'm going to build an electrical computer pretty soon, I'll upload a video of it. If I can, I'll try to make a mechanical adaptation of it :)
I look forward to it Joshua ^.^ ganbatte! (goodluck!)
Is it okay as i place instructions on instructables?
With mechanical logic gates - would a 0 be a still gear or a gear in the reverse direction? Because my thinking of that would be a NOT gate is just one gear pumping into another one, that other one being the output.
Play team fortress 2
I bed you can't playe call of duty on that cumpoter! My macbook is the best computer and better then this on!
duh
Learn some grammar and get a dictionary, and maybe you'll realize how much better this computer is compared to children's toys.
Maybe he's being ironic?
That looks nothing like a computer
It is a computer, but it dosent run on electricity. That is why it is limited and dosent have a screen. It is a mechanical or analog computer.
It is a computer . It just doesn't run on electricity. That is why it is limited and dosent have a screen. It is a mechanical or analog computer.
It is a mechanical digital computer. It is not analog. Analog computers give output over a continuum of values, while digital computers (like this one) return only discrete values.
Joanna Feldheim it would actually be harder to make a mechanical analog computer than it would to make a mechanical digital computer, since boolean logic is easier to deal with in general :P
How would I make a single cell RAM register, and how could I dump the value of say, register 1, to the RAM cell, change it, and then rewrite it back to register 1?
Cool, man!! :D
The Meccano Men, builders of the "Meccano Differential Analyser", would be proud!
I could make this a 4-bit computer by adding another register (really its a physical 1 dimensional storage address - a 2d array for memory would be sick) and another bit rod? If I had enough pieces, I have visions of an 8 bit computer with a primitive OS, ROM, working RAM, the cpu, and even a way to connect with another knex computer and maybe even transfer programs and ROMs. THAT would be awesome. Useless, but awesome.
You have to actually take it out. In the original Digicomp, you have separate wedges that you have to switch out of the machine rather than the standard "straws" for programming. This machine is similar in that you actually have to do surgery to add or remove an OR gate - at least, with the current method.
Thanks! I'll see what I can do. Oh, and how do you "turn off" the OR gate like you can turn off either side of the registers? I can always wait till later in the week
Hm. If I remember correctly, I just had the grey connector attached directly on the yellow rod. Like I said, I'll try to clarify it later this week. My original is about 4,000 miles away right now, but I do have some extra k'nex to work with. If you can manage to come up with a better system for the OR gate, that would be great. I could see something with string and rubber bands possibly working.
Wow! Fast reply! Thanks! Yeah, I figured it was a grey connetor ==> blue rod ==> grey connector. However, when I tried it, I attached it onto the yellow connector via a green rod stub thing ==> green connector ==> white connector. This worked, but the left of the register was always in the OFF position.
Wow, I was wondering when someone would finally ask. I never got around to posting that with the original report. This would be hard to explain in words, so I will try to get something up online later this week. Until then, note that the piece is simply a light grey connector attached to a blue stick which is attached to a single dark grey connector. Completely linear. You can attach it to the yellow stick which raises the pushing rods. It is slightly visible at 4:41 in the video.
so how exactly do I go about making this OR gate?
Very intricate and creative.
This is so cool you rock
Just about to destroy mine right now :D thanks 4 this
The piece count on the white rods is completely off. Damnit!
Wow
I can't build such a thing, young man. But look at some Lego vids, kid
lets see you make a computer that can play nim with legos
First off this is amazing the size that you got it to can you make some tuts on how to program it ? Second I have to agree that knex is not the best for making something soled with no holes but, it is the best for moving parts and has its up's over all there not very comparable legos and knex both have diferent uses witch make each beter than the other for they where ment to do knex is for computers and stuff like this and legos are good for non working decore
can it go on facebook?
I posted the link to full instructions in the description
Leon butler
And the OR gates?
I don't entirely understand your question. What do you mean by slides 7 and 8 and 9? If you're talking about the different areas you can program the machine, then yes, you can program it on any of the 9 different sections depending on which rods you want to move or test values from.
Well yeah I know what each would be, i was just wondering if it was mechanically possible to to make it longer with this design.
Is it possible to elongate this and make it 4, 5, 6, and so on bits?
._. K'nex are made in the USA...
lol 8 people have no appreciation for computer history. I remember learning about a similar design for a computer from the late 1800's.
thumz up if you don't understand anything lol
Me either...
simpley amazing
How do you make it. It might need 1,000 pieces. WOW!!!!!
NERD!!!!!!
ummmmm i think this is FAKE no knex carries things that hold binary or scripts it's justa plastictoy piece
Hammer time!!
3-bits thats great for knex, you sir are a genius.
@tbot7291 Look at Lego Technic (or any other style)-- rigid, precise... sets possess an almost 'machined' quality. K'nex-- flexing, loose tolerances, Made in China, while resembling Lincoln Logs much more so than their European-made counterpart. I'm going to Legoland, my friend. Good luck finding K'nexland. (Great machine though!)
@GrizzlyRecoveryZone1 Bold words my friend. Only Lego Mindstorms can really compare. Other than that, K'nex wins every time.
K'nex looks like crap next to LEGO!
You lost me at 1:50 to smart for me so ill just move on, oh uh great looking computer
you should expand it, you could easily add more binary rows