| --- Day changed Fri Feb 27 2009 | ||
| * katmeow1 waves gnites | 00:01 | |
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| worldpeace | singularity religion? lol | 02:26 |
|---|---|---|
| gene | http://hardware.slashdot.org/article.pl?sid=09/02/27/049245 | 02:38 |
| gene | openmanufacturing | 02:38 |
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| kanzure | gene: yes. I don't know if I'll post in the comments or not. | 02:52 |
| gene | I just don't believe it | 02:53 |
| gene | I can't believe you can make things like that using just a SMT robot and some injection molding capabilities | 02:53 |
| gene | how do they do the design? | 02:54 |
| gene | we need a molding machine for the fab | 02:54 |
| kanzure | design is EDAerized. | 02:57 |
| kanzure | http://www.gpleda.org/ | 02:57 |
| gene | all by program? | 02:59 |
| gene | so I want to make me a camera that sends wireless video to a receiver unit that hooks up via usb to my computer, how do I do that? | 02:59 |
| kanzure | most EDA is limited to digital circuits for flipping bits and bytes, so at the moment you're not going to be able to ask the magic eight ball "how do I do that?" (for your wireless video streaming device) | 03:00 |
| gene | in that case just make me a device that does this 110-> 011--> 101 loop | 03:02 |
| kanzure | what does that mean? | 03:03 |
| gene | where each of the bits is a different out put | 03:03 |
| kanzure | output to what? | 03:03 |
| gene | to a pneumatic cylinder | 03:03 |
| kanzure | how is that different than output down an insulated standard electrical wire? | 03:03 |
| gene | http://urobotics.urology.jhu.edu/projects/PneuStep/ | 03:04 |
| gene | drive that | 03:04 |
| gene | not too much | 03:04 |
| kanzure | sounds like something more fitted for a controller program rather than a digital circuit. | 03:04 |
| kanzure | but anyway, | 03:05 |
| gene | I want a digital fluidic circuit | 03:05 |
| gene | for a pneumatic steampunk robot | 03:05 |
| gene | maybe even one with sonic range sensors | 03:06 |
| gene | like those described in that paper I sent you | 03:06 |
| kanzure | anyway, it should be easy enough to write up some boolean algebra for that sequence of bits that you want to pulse down 3 wires, but I'm not really sure that's the most optimal way to go about doing what you want here. | 03:07 |
| kanzure | in this case, gEDA would be used actually to design, say, that PCI card that is in the diagram on that PneuStep page | 03:08 |
| gene | ok | 03:08 |
| kanzure | also, I'm going to sleep | 03:08 |
| gene | ok | 03:08 |
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| fenn | hrmph. 10 days of unattended operation and the server goes down | 03:36 |
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| fenn | slept through shopbot camp.. guess i'll have to just stay up til 9 AM tomorrow this time | 18:26 |
| xp_prg | what is shipbot camp? | 18:29 |
| fenn | bunch of old dudes with mustaches standing around talking about plywood | 18:29 |
| xp_prg | fenn I can't get adp1 | 18:32 |
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| gene_ | so does the fablab have a name yet | 19:47 |
| xp_prg | what is the fablab? | 19:48 |
| gene_ | we're starting a fablab | 19:49 |
| fenn | les wants to call it 'myfab.org' | 19:49 |
| xp_prg | but what is that? | 19:50 |
| fenn | xp_prg: go away please | 19:50 |
| gene_ | myfab sounds ok | 19:51 |
| fenn | i keep saying "austin fabratory" in my head | 19:51 |
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| fenn | i'd be at the lab right now but i dont have a key.. wah | 19:56 |
| fenn | so i guess i'll read old posts to OM | 19:57 |
| gene | the lab needs a fingerprint scanner then | 19:57 |
| fenn | we're going to do some kind of card, probably RFID | 19:57 |
| fenn | ugh | 20:00 |
| fenn | wtf are they thinking? | 20:00 |
| fenn | Please login in order to download your complimentary copy of the complete book, Winning the Oil Endgame, as a PDF | 20:00 |
| gene | finger print scanner is cooler | 20:01 |
| gene | bonus points if you get in using somebody else's fingerprints | 20:01 |
| fenn | you get to clean the oil and half-cured epoxy off of the scanners then | 20:01 |
| gene | and admit | 20:01 |
| gene | good point | 20:02 |
| gene | retina scanner? | 20:02 |
| fenn | RFID is harder to dupilicate than magnetic card, which was a consideration | 20:02 |
| gene | RFID is more fun to duplicate. | 20:06 |
| gene | I'd like the fablab to do a project showing how insecure fingerprint scanners are | 20:08 |
| fenn | well, you can do that, but i'm not interested | 20:08 |
| fenn | speaking of ID cards; this is interesting: http://guptaoption.com/cheapid/ | 20:35 |
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| fenn | "After my recent trip to Afghanistan, I am seriously considering that country as my base of operations." | 21:27 |
| fenn | gonna have to get smari to explain that comment | 21:28 |
| kanzure | hi all | 22:05 |
| kanzure | fenn: I have a treat | 22:05 |
| kanzure | 59 MB zip file version: http://heybryan.org/books/papers/microfluidics_2009.zip | 22:06 |
| kanzure | directory w/ files and index: http://heybryan.org/books/papers/microfluidics/ | 22:06 |
| kanzure | I was spazzing out for a few hours in the lab reading over these | 22:06 |
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| kanzure | katsmeow-afk: http://heybryan.org/books/papers/microfluidics_2009.zip | 22:14 |
| kanzure | or, see it online: http://heybryan.org/books/papers/microfluidics/ | 22:14 |
| * katsmeow-afk peeks | 22:15 | |
| katsmeow-afk | lota stuff thee | 22:16 |
| katsmeow-afk | there | 22:16 |
| kanzure | Just some stuff I was reading today. | 22:16 |
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| katsmeow1 | i can't stay connected, i'll be back tomorrow maybe | 22:19 |
| katsmeow1 | thanke for the url kanzure | 22:19 |
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| kanzure | http://algebraicthunk.net/~dburrows/blog/entry/package-management-sudoku-2/ | 22:26 |
| kanzure | aptitude + sudoko :-) | 22:26 |
| kanzure | fenn: hm. 3D structures from drinking straws. | 22:37 |
| kanzure | some scissors could come in handy. Make slots and attach them in various ways. | 22:37 |
| kanzure | in fact, straws might be a rapid prototyping method for the automatic linkage design tools. | 22:38 |
| fenn | i dont want 59MB of scanned images | 22:39 |
| kanzure | most aren't. | 22:39 |
| fenn | oh, thought that was gene's fluidics journals | 22:40 |
| kanzure | oh, I have that too. | 22:40 |
| kanzure | fenn: if you give me an ssh key, I'd like to send it to Joe so that you can log into their server sometime and hang out in their custom chatroom. | 22:40 |
| fenn | ok, emailed. | 22:41 |
| kanzure | todo: web crawler for the journal "Lab on a Chip". | 22:41 |
| fenn | joe == joseph jackson? | 22:42 |
| fenn | the third :) | 22:42 |
| kanzure | joe = joe rayhawk | 22:42 |
| fenn | related to steve and anna i presume | 22:43 |
| kanzure | yes. | 22:43 |
| fenn | this is the guy with too many computer monitors in his basement? | 22:43 |
| kanzure | yes. | 22:44 |
| fenn | i'd like more computer programs to have a "visualization mode" so you can see wtf the algorithm is doing | 22:44 |
| fenn | ghost diagrams does this in a pleasing way | 22:44 |
| fenn | re: the sudoku link | 22:44 |
| kanzure | the sodoku link comes from joe, btw. | 22:44 |
| fenn | yeah, it's a clever hack but SFW | 22:45 |
| kanzure | I was complaining about debian and the package system being too tightly integrated | 22:45 |
| kanzure | so I mentioned I wanted one for pokemon | 22:45 |
| kanzure | and so he brought up dan's sudoku-via-apt-dependency-resolution-algorithms. | 22:45 |
| fenn | do pokemonsters have dependencies? | 22:46 |
| kanzure | no. it was probably a terrible request. | 22:46 |
| fenn | i've only played magic: the gathering, which has very simple dependencies most of the time (red mana, blue mana, etc) | 22:46 |
| kanzure | ssh -i /your/key/here/ fenn@neuroblastoma.omgwallhack.org | 22:46 |
| kanzure | then run: chat.rb | 22:46 |
| kanzure | then type: /join omg | 22:46 |
| kanzure | to send messages, type: omg message here | 22:47 |
| kanzure | erm, not your key, sorry | 22:48 |
| kanzure | but you get the idea. | 22:48 |
| fenn | it's asking me for a password | 22:48 |
| kanzure | hrm. | 22:48 |
| kanzure | did you send the correct -i parameter? | 22:49 |
| fenn | oh i was supposed to -i my private key i guess | 22:49 |
| kanzure | yes. | 22:49 |
| fenn | whatever.. i only have one key so i dont need -i | 22:49 |
| kanzure | eh? | 22:50 |
| kanzure | Anyway, I'm going to go back to oggling over the microfluidics/ directory. | 22:53 |
| kanzure | for instance, the wax printer- why didn't I just melt some wax and draw the spiral filter thingy? | 22:53 |
| kanzure | omg there was another good paper (they are all good) on gravity-based sedimentation | 22:54 |
| fenn | so, how do i say something on omg/? | 22:54 |
| kanzure | http://heybryan.org/books/papers/microfluidics/A%20Gravity-Driven%20Microfluidic%20Particle%20Sorting%20Device%20with%20Hydrodynamic%20Separation%20Amplification.pdf | 22:54 |
| kanzure | fenn: just type: "omg hi" | 22:54 |
| kanzure | http://heybryan.org/books/papers/microfluidics/A%20microfluidic%20bioreactor%20for%20increased%20active%20retrovirus%20output.pdf | 22:56 |
| kanzure | A microfluidic bioreactor for increased active retrovirus output | 22:56 |
| kanzure | and then one on "ice fabrication"- | 22:57 |
| kanzure | http://heybryan.org/books/papers/microfluidics/Ice-lithographic%20fabrication%20of%20concave%20microwells%20and%20a%20microfluidic%20network%20-%20ice%20droplets%20for%20structure%20formation%20in%20PDMS.pdf | 22:58 |
| kanzure | Ice-lithographic fabrication of concave microwells and a microfluidic network - ice droplets for structure formation in PDMS | 22:58 |
| fenn | 403 (forbidden) | 23:07 |
| kanzure | whahh | 23:08 |
| kanzure | try now? | 23:09 |
| fenn | well, i dont see what's new about freezing ice droplets on a slide | 23:15 |
| kanzure | nothing. | 23:16 |
| kanzure | just, lots of people have ice laying around | 23:16 |
| kanzure | so if you were to freeze ice droplets, and then pour hot wax from a candle or something, I don't know, something. | 23:16 |
| fenn | it would melt the ice? | 23:16 |
| kanzure | but apparently this is a case where the ice retains the correct shape for just enough time for it to matter | 23:17 |
| fenn | sounds finicky | 23:17 |
| kanzure | if you print water droplets on a slide, and then freeze them, is there any likelihood that the surface area properties of water would retain the shape of the circular droplet, so that you could then pour hot wax over it? | 23:18 |
| fenn | if you get it cold enough, anything will freeze on contact | 23:18 |
| kanzure | not necessarily on contact. | 23:19 |
| kanzure | I was thinking dot matrix printers. | 23:19 |
| kanzure | and then freeze the substrate on which you were printing. | 23:19 |
| fenn | dot matrix printers use tiny needles to press an ink ribbon onto paper.. i dont see the link | 23:19 |
| kanzure | oh, sorry | 23:19 |
| kanzure | um. | 23:19 |
| fenn | "waterjet" is taken :{ | 23:20 |
| kanzure | I was thinking about the resulting dot matrix, an array of dots | 23:20 |
| kanzure | but yes, inkjets, whatever. | 23:20 |
| fenn | i guess i need sunglasses if i'm gonna wear a mustache 8{) | 23:20 |
| kanzure | anyway, I don't know iiif the drops would freeze. | 23:21 |
| kanzure | do small droplets freeze easily? | 23:21 |
| kanzure | http://home.att.net/~rpml/p02b/p02b.htm hm, nice index | 23:23 |
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| gene | kanzure can you put that thing I sent you somewhere nice and safe on your website? | 23:27 |
| kanzure | oh, yes, sorry, one moment | 23:29 |
| kanzure | um, what were the filenames again? | 23:29 |
| kanzure | okay, added | 23:29 |
| kanzure | http://heybryan.org/books/papers/microfluidics/ | 23:29 |
| kanzure | added this one too: http://heybryan.org/books/papers/microfluidics/Rapid%20prototyping%20of%20micropatterned%20substrates%20using%20conventional%20laser%20printers.PDF | 23:31 |
| kanzure | rapid prototyping of micropatterned substrates using conventional laser printers | 23:31 |
| kanzure | http://heybryan.org/books/papers/microfluidics/Maskless%20photolithography%20using%20UV%20LEDs.pdf | 23:33 |
| kanzure | maskless photolithography using UV LEDs | 23:34 |
| gene | meeting6 and seven | 23:34 |
| gene | HOLY SHIT | 23:34 |
| gene | meeting6.zip | 23:35 |
| gene | meeting7.zip | 23:35 |
| kanzure | hm? | 23:35 |
| gene | I sent them to you | 23:35 |
| kanzure | yeah, I put them in the directory | 23:36 |
| kanzure | have you looked at the paper index yet? | 23:36 |
| gene | the microfluidics index | 23:37 |
| gene | YES | 23:37 |
| kanzure | like? | 23:37 |
| gene | WANT MOAR | 23:38 |
| kanzure | heh | 23:38 |
| gene | the vinyl plotter one could be useful | 23:39 |
| gene | you know what I want to do? | 23:39 |
| gene | I want to build me a fluidic graphing calculator | 23:39 |
| kanzure | you know how everybody is pissing and moaning about gel electrophoresis on the diybio list? | 23:40 |
| kanzure | there's a few electrophoresis alternatives in the index. | 23:40 |
| kanzure | which could be patterned on hot wax, or with laser printers and lamination, or whatever | 23:40 |
| gene | we can't use other electronic devices on tests | 23:40 |
| gene | hot wax? | 23:40 |
| kanzure | look at the paper that has 'wax printer' in its title | 23:41 |
| kanzure | but really, just use hot wax and draw in it. | 23:41 |
| gene | solid ink printer | 23:41 |
| gene | real cheap | 23:41 |
| kanzure | or a pen. | 23:41 |
| gene | off of craigslist | 23:42 |
| gene | now if we could only figure out how to make em print on not a print roller | 23:42 |
| gene | right now I want to design me a fluidic stepper motor | 23:43 |
| gene | that can be 3d printed and is compatible with reprap | 23:43 |
| gene | free 3d prints remember? | 23:43 |
| gene | so I want to generate a gear profile | 23:44 |
| kanzure | what does that mean? (terminology, sorry) | 23:45 |
| gene | let me show you | 23:45 |
| gene | I'm trying to make a wobble motor | 23:45 |
| gene | http://www.chalmers.se/mc2/EN/laboratories/bionano-systems/research/micro-nanosystems-group/wafer-bonding | 23:46 |
| gene | mems pinball machine | 23:46 |
| kanzure | are the UV LEDs cheap? | 23:46 |
| kanzure | erm, -the | 23:46 |
| fenn | i dont see why the obsession with stepper motors.. | 23:47 |
| fenn | what you really want is controlled movement | 23:48 |
| kanzure | isoborynl acrylate, tetraethylenegylcol dimethacrylate, 2,2'-dimethoxy-2-phenyl-acetophenone. <-- blah, this sucks. | 23:48 |
| fenn | much easier to simply make a fluidic motor and control it somehow | 23:48 |
| kanzure | that list is from the materials section of http://heybryan.org/books/papers/microfluidics/Ultra%20rapid%20prototyping%20of%20microfluidic%20systems%20using%20liquid%20phase%20photopolymerization%20(5%20min).pdf | 23:48 |
| kanzure | basically: microscope slides + mask + UV LEDs + that "prepolymer liquid" concoction listed above. | 23:49 |
| gene | fluidics has lot's of "potential" for reprap | 23:49 |
| fenn | http://heybryan.org/books/papers/microfluidics/Fluidics%20quaterly%207/22.jpg has the right idea | 23:51 |
| gene | yup | 23:52 |
| gene | that's what got me interested | 23:52 |
| fenn | i'd start with an electronic encoder though, just because building a fluidic computer is a huge task | 23:53 |
| fenn | and unrelated to the problem of controlling a fluidic positioning system | 23:53 |
| gene | electronic encoder? | 23:53 |
| fenn | optical encoder, like in a ball mouse | 23:54 |
| gene | electronic encoder? Fenn, you don't need an electronic encoder, when you have a fluidic one | 23:54 |
| gene | disk with holes in it | 23:54 |
| gene | http://urobotics.urology.jhu.edu/projects/PneuStep/ | 23:55 |
| kanzure | hrm, I wonder if there's mask lithography method with wax. | 23:55 |
| gene | I want to generate a gear profile for that | 23:55 |
| fenn | gene: if you have a fluidic encoder you have to monitor those fluidic signals and get them into a computer somehow | 23:56 |
| gene | who says you need a computer? | 23:56 |
| gene | when you can have paper tape | 23:56 |
| fenn | oh ffs take it one step at a time | 23:57 |
| gene | I can't figure out how they get it to move to a certain position | 23:57 |
| gene | how do they input coordinates | 23:58 |
| fenn | see the diagram, counter (error register) -> logic to select actuator mode | 23:59 |
| fenn | there's an arrow going into the counter, presumably that's where you put the desired coordinates | 23:59 |
| gene | what's a counter? | 23:59 |
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