--- Log opened Tue Jan 02 00:00:00 2018 00:01 -!- Guest82748 [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has quit [Ping timeout: 260 seconds] 00:06 < nmz787> http://41j.com/blog/2016/01/speculation-on-the-illumina-firefly/ 00:08 -!- hehelleshin [~talinck@174.97.113.184] has quit [Ping timeout: 256 seconds] 00:34 -!- poppingtonic [~brian@unaffiliated/poppingtonic] has joined ##hplusroadmap 01:24 -!- CheckDavid [uid14990@gateway/web/irccloud.com/x-xiwefdhwfqoywrhe] has quit [Quit: Connection closed for inactivity] 02:09 -!- helleshin [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has joined ##hplusroadmap 03:30 -!- darsie [~username@84-114-73-160.cable.dynamic.surfer.at] has joined ##hplusroadmap 03:33 < kanzure> .wik transfer learning 03:33 < yoleaux> "Transfer learning or inductive transfer is a research problem in machine learning that focuses on storing knowledge gained while solving one problem and applying it to a different but related problem. For example, knowledge gained while learning to recognize cars could apply when trying to recognize trucks." — https://en.wikipedia.org/wiki/Transfer_learning 04:13 -!- emeraldgreen [~user@188.227.115.178] has quit [Quit: Leaving.] 05:29 -!- fenrir849 [~fenrir849@pool-173-66-120-254.washdc.fios.verizon.net] has joined ##hplusroadmap 06:03 -!- helleshin [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has quit [Ping timeout: 248 seconds] 06:04 -!- helleshin [~talinck@174.97.113.184] has joined ##hplusroadmap 06:05 -!- hehelleshin [~talinck@174.97.113.184] has joined ##hplusroadmap 06:08 -!- helleshin [~talinck@174.97.113.184] has quit [Ping timeout: 256 seconds] 06:13 -!- TC [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has joined ##hplusroadmap 06:13 -!- TC is now known as Guest80015 06:16 -!- hehelleshin [~talinck@174.97.113.184] has quit [Ping timeout: 256 seconds] 06:16 -!- helleshin [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has joined ##hplusroadmap 06:17 -!- Guest80015 [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has quit [Ping timeout: 264 seconds] 07:12 -!- Malvolio [~Malvolio@unaffiliated/malvolio] has joined ##hplusroadmap 07:17 -!- WeirdTolkienishF [~Weird@unaffiliated/weirdtolkienishf] has joined ##hplusroadmap 08:24 < kanzure> lightning network developer tutorial thing http://dev.lightning.community/tutorial/nnnnnnnnnnn 08:43 -!- ohmanman [8077caa9@gateway/web/freenode/ip.128.119.202.169] has joined ##hplusroadmap 08:43 -!- ohmanman [8077caa9@gateway/web/freenode/ip.128.119.202.169] has quit [Client Quit] 08:52 -!- aeiousomething [aeiousomet@gateway/vpn/privateinternetaccess/aeiousomething] has quit [Ping timeout: 264 seconds] 09:03 < andytoshi> are there any scifi books about what'd happen if everybody left earth for some other planet and the remaining biosphere kept evolving without them? 09:04 < kanzure> orionsarm.com probably has a thing about this 09:05 -!- drewbot [~cinch@54.163.141.60] has quit [Remote host closed the connection] 09:47 -!- SkunkFox [~Foxie@cpe-2606-A000-A441-9100-10AD-2CA3-A943-2FA1.dyn6.twc.com] has joined ##hplusroadmap 09:55 -!- brujo_biologica [~brujo@li1745-37.members.linode.com] has joined ##hplusroadmap 10:02 -!- drewbot [~cinch@54.226.240.80] has joined ##hplusroadmap 10:06 < JayDugger> Orion's Arm did have that, although it has had at least one major revision since I last looked. 10:07 < JayDugger> When I looked at it, humans had been forced off the planet by an AI defender of the ecosystem. 10:07 < JayDugger> (Yeah, dumb. It was popular at the time.) 10:08 < JayDugger> Dougal Dixon's "After Man" and "Man After Man" also apply here. 10:09 < JayDugger> If you relax the requirement from biological evolution to cultural evolution, then Haldeman's "The Forever War" and Lem's "Return from the Stars" both apply. 10:14 < JayDugger> You'd think it would show up in Stapledon's Last and First Men, but no. 10:15 < JayDugger> It does show up in Zebrowski's SF: Macrolife, Cave of Stars (?), and the Omega Point trilogy, but doesn't rise to a major theme in any of the books. 10:18 < JayDugger> Evolution continuing as intelligent species move on and off planets also shows up in Brin's Uplift books, but again, not as a major theme. 10:21 < JayDugger> kanzure Thanks. (Can't message for some reason) Shall I proofread it? 10:23 < andytoshi> awesome, thanks 10:23 < kanzure> JayDugger: up to you. 10:23 < JayDugger> You're welcome Happy reading. 10:23 < kanzure> JayDugger: just thought you should know about it 10:32 < poppingtonic> Part of the plot in Greg Egan's Diaspora involves a group of humans "fleshers" who intentionally went full paleo even when everyone else was getting uploaded and otherwise becoming posthuman, leaving earth. 10:36 < JayDugger> Yeah, good call. 10:41 -!- WeirdTolkienishF [~Weird@unaffiliated/weirdtolkienishf] has quit [Quit: Leaving] 11:08 -!- Gurkenglas [~Gurkengla@dslb-094-223-133-187.094.223.pools.vodafone-ip.de] has joined ##hplusroadmap 11:19 < nmz787> kanzure: I was told sperm are transcriptically inactive... not sure if that messes up your FACS search idea 11:20 < nmz787> i.e. you won't be able to express GFP post-SMGT 11:20 < nmz787> .wik smgt 11:20 < yoleaux> "Super Mario Galaxy 2[a] is a platforming video game developed and published by Nintendo for the Wii. It was first announced at E3 2009 and is the sequel to Super Mario Galaxy. It was released worldwide in 2010, and is the fourth original 3D platformer in the Super Mario series, after Super Mario 64, Super Mario Sunshine, and Super Mario Galaxy." — https://en.wikipedia.org/wiki/SMGT 11:20 < nmz787> .wik sperm mediated gene transfer 11:20 < yoleaux> "Sperm-mediated gene transfer (SMGT) is a transgenic technique that transfers genes based on the ability of sperm cells to spontaneously bind to and internalize exogenous DNA and transport it into an oocyte during fertilization to produce genetically modified animals.1 Exogenous DNA refers to DNA that originates outside of the organism." — https://en.wikipedia.org/wiki/Sperm-mediated_gene_transfer 11:50 -!- DataPacRat [~dan@adsl-107.itcanada.com] has quit [Ping timeout: 252 seconds] 11:57 -!- justan0theruser [~justanoth@unaffiliated/justanotheruser] has quit [Ping timeout: 264 seconds] 12:02 -!- emeraldgreen [~user@188.227.115.178] has joined ##hplusroadmap 12:50 <@fenn> you would sort the blastocysts with FACS right? but wouldn't that make the resulting human green? perhaps it would be wiser to label only a certain cell type, for example the trophoblast cells 12:51 < kanzure> not blastocytes 12:51 < kanzure> spermatozoa 12:51 <@fenn> they don't express the GFP though 12:52 < kanzure> you can have the GFP flying around on the outer membrane 12:52 < kanzure> doesn't need to be expressed by the spermatozoa specifically 12:58 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has joined ##hplusroadmap 13:01 <@fenn> what's it called when you do something like PCR to find the location of a gene you integrated into the genome? 13:02 < kanzure> gene mapping? 13:03 < kanzure> .wik gene mapping 13:03 < yoleaux> "Gene mapping describes the methods used to identify the locus of a gene and the distances between genes." — https://en.wikipedia.org/wiki/Gene_mapping 13:18 -!- emeraldgreen [~user@188.227.115.178] has quit [Read error: Connection reset by peer] 13:19 -!- emeraldgreen [~user@188.227.115.178] has joined ##hplusroadmap 13:19 -!- aeiousomething [aeiousomet@gateway/vpn/privateinternetaccess/aeiousomething] has joined ##hplusroadmap 13:23 < nmz787> .wik fluorescent in situ hybridization 13:23 < yoleaux> "Fluorescent in situ hybridization (FISH) is a molecular cytogenetic technique that uses fluorescent probes that bind to only those parts of the chromosome with a high degree of sequence complementarity." — https://en.wikipedia.org/wiki/Fluorescent_in_situ_hybridization 13:23 < nmz787> fenn that? ^ 13:24 -!- hehelleshin [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has joined ##hplusroadmap 13:26 -!- aeiousomething [aeiousomet@gateway/vpn/privateinternetaccess/aeiousomething] has quit [Ping timeout: 240 seconds] 13:28 <@fenn> that's better, but still not really what i was thinking 13:28 -!- helleshin [~talinck@cpe-174-97-113-184.cinci.res.rr.com] has quit [Ping timeout: 248 seconds] 13:28 <@fenn> i was thinking something like a rolling circle amplification on bits of chopped up genome, that way you get the sequence next to the gene of interest 13:29 <@fenn> sure it would be nice to know what chromosome it's on and the rough location, but it's not really important is it? 13:55 -!- emeraldgreen [~user@188.227.115.178] has quit [Ping timeout: 240 seconds] 13:57 -!- emeraldgreen [~user@188.227.115.178] has joined ##hplusroadmap 14:09 < juul> kanzure: nope sorry 14:49 -!- DataPacRat [~dan@adsl-107.itcanada.com] has joined ##hplusroadmap 14:56 < kanzure> fenn: for adding in genes, not super important to know where it ends up, but you can target a chromosome location anyway. what you really want to do is add a bunch of promoters. 15:24 < kanzure> "an inexpensive DIY 3d cone display thing" https://roxanneluo.github.io/PeppersCone.html 15:54 -!- augur_ is now known as augur 16:01 < juri_> 'code will be open sourced soon' 16:09 < kanzure> stare at them, don't blink, until they release 16:23 < JayDugger> How do they steady the plastic film ? 16:28 < JayDugger> And that weird color change... 16:31 < JayDugger> Pretty neat. 16:43 < nmz787> JayDugger: they say the coin was used for weight/stabilization 16:43 < nmz787> nice trick, but not sure how it's going to compare with i.e. VR 16:43 < nmz787> (oculus type stuff) 16:44 < nmz787> I could see looking at something like that maybe twice if it were at a mall spouting advertisements at me 16:44 < nmz787> or maybe, in a hospital or something, at least two people can simultaneously look at the images, which isn't as easy with headset/goggles 16:45 < nmz787> you can also show it to people who are disabled (like someone who's all rigged up due to a broken back/neck... you wouldn't want to try fitting a VR headset to them I guess) 16:50 <@fenn> i think it only works for one viewer 16:50 < JayDugger> Right, simultaneous viewers of a volume of interest: CT scans, MRI, radar return, sonar return, 16:50 <@fenn> not sure how it knows where that viewer is located though 16:50 < JayDugger> Yeah...looks as if it distorts pretty fast. 16:51 < JayDugger> I don't think the display knows, I think it just has a small "sweet spot." Perhaps the paper makes that clear. 16:51 < JayDugger> The bit at the end of the video hints more than tells. 16:51 <@fenn> well then you don't need the cone at all 16:52 <@fenn> i guess it's for cute R2D2 things 16:53 < JayDugger> Yeah, the nickel stabilizes the cone against stray motion, and I think the 0.5mm thickness (see paper) probably gives it enough stiffness to resist flutter or the like. 17:28 < kanzure> music! https://www.youtube.com/watch?v=-9pgIVcB3rk 17:31 -!- poppingtonic [~brian@unaffiliated/poppingtonic] has quit [Quit: Leaving.] 17:43 -!- Gurkenglas [~Gurkengla@dslb-094-223-133-187.094.223.pools.vodafone-ip.de] has quit [Ping timeout: 256 seconds] 18:31 -!- hylleddin [~hylleddin@2604:a880:1:20::1056:3001] has joined ##hplusroadmap 18:38 -!- hylleddin [~hylleddin@2604:a880:1:20::1056:3001] has quit [Quit: WeeChat 1.0.1] 19:16 -!- CaptHindsight [~2020@unaffiliated/capthindsight] has joined ##hplusroadmap 19:17 < CaptHindsight> did I miss anything? 19:20 < CaptHindsight> https://www.youtube.com/watch?v=R1f7vY1bMNc looks like what they mostly done is develop CAD/CAM software for tissues 19:22 < CaptHindsight> https://www.youtube.com/watch?v=-xdqRnXx0qk TSIM & BioAssemblyBot Workflow 19:25 < kanzure> i'm gonna need an inkjet (but not for synthesis, just deposit of some chemicals) 19:25 < CaptHindsight> inkjets are picky 19:26 < kanzure> CaptHindsight: we'd need to deposit dNTPs 19:26 < CaptHindsight> fluids are formulated to match the printheads 19:27 < kanzure> CaptHindsight: like this https://www.neb.com/products/n0447-deoxynucleotide-dntp-solution-mix 19:27 < CaptHindsight> sometimes you get lucky or you have to make due with what heads you have access to 19:28 < kanzure> here is the structure https://en.wikipedia.org/wiki/Deoxycytidine_triphosphate 19:28 < kanzure> also i sent a thing to you in PM 19:30 < kanzure> CaptHindsight: will you be aroudn in 10 minutes? 19:30 < CaptHindsight> Each vial contains 8 μmol in a volume of 0.8 mls 19:31 < CaptHindsight> glanced at the pdf 19:31 < CaptHindsight> kanzure: I should be in in 10 minutes 19:31 -!- kemmishtree [44e61c7d@gateway/web/freenode/ip.68.230.28.125] has joined ##hplusroadmap 19:31 < kemmishtree> hey who is here? 19:32 < kanzure> CaptHindsight: kemmishtree is looking at inkjetting of dNTPs 19:34 < kemmishtree> who uses inkjet printers to make oligos for sale? 19:35 < CaptHindsight> I make custom ones 19:35 < kanzure> kemmishtree: not sure. but this is the project i keep referencing, http://bioinformatics.org/pogo/ 19:36 < kemmishtree> ah okay 19:36 < CaptHindsight> tiny quantities of expensive fluids to jet 19:36 < kanzure> can you help us estimate cost of optimizing dNTPs to be jetted out of inkjets? 19:36 < kemmishtree> what's the lower bound for volume that can reprodicibly be dispensed to within say 80% accuracy/precision? 19:37 < CaptHindsight> you just want a few drops in a few places? 19:37 < kanzure> i told him we could do 50 picoliters (or less?) at 1200x1200 dpi 19:37 < CaptHindsight> well there are 1pL nozzles for <$1k 19:38 < kemmishtree> um, we'd want very large dense arrays, but I'm curious why that affects drop size? 19:38 < CaptHindsight> 1-2pL 19:38 < kemmishtree> so, that's not $1K/nozzle, right? 19:38 < CaptHindsight> depends 19:39 < CaptHindsight> I'm trying to see what you would like vs what's affordable 19:39 < kanzure> the project is bottlenecked by firing rate and density 19:39 < kanzure> and minimizing drop size 19:39 < CaptHindsight> well an Epson head comes in a $100 printer with ~4pL drop volumes and 360 nozzles.... 19:40 < CaptHindsight> but it holds several CC's of fluid just to prime 19:40 < kanzure> we will have many liters available for priming 19:40 < kemmishtree> we want a system that deposits a billion one-picoliter drops per second across a matrix of one billion spots. i.e., each of a billion spots get one single-picoliter drop each second. 19:41 < kemmishtree> and we only need two different "inks" 19:41 < CaptHindsight> what spacing between spots? 19:41 < kanzure> spacing might not matter to us.... dealer's choice? 19:41 < kanzure> it has to be practical 19:41 < CaptHindsight> does it matter as long as it's repeatable? 19:41 < kemmishtree> the spacing is not so important, as Bryan says 19:41 < kanzure> repeatability is very important 19:42 < kanzure> especially if the head moves 19:42 < kanzure> if the head doesn't move then repeatability isn't too important 19:42 -!- fenrir849 [~fenrir849@pool-173-66-120-254.washdc.fios.verizon.net] has quit [Quit: Leaving] 19:42 < CaptHindsight> billion drops means either moving heads or substrate 19:43 < CaptHindsight> don't worry about repeatability 19:43 < kanzure> basically we need to print to the same spots repeatedly, a few million times 19:43 < CaptHindsight> yeah 19:43 < CaptHindsight> got it 19:44 < kanzure> v. interested in design/engineering cost estimate for v1 machine, and costs per machine after that (even if it's just napkin estimate that might be a little high) 19:45 < CaptHindsight> https://global.kyocera.com/prdct/printing-devices/inkjet-printheads/index.html 19:46 < kanzure> if it costs $50k for a first machine, is there any chance that future machines could be made for $5k? etc. 19:46 < CaptHindsight> 1.5pL drop, 64khz firing freq, 5312 nozzles per head 19:47 < CaptHindsight> ~334 Million drops per second for one head 19:47 -!- yashgaroth [~yashgarot@2606:6000:cd4d:3300:f5e0:f867:a11d:8d52] has joined ##hplusroadmap 19:47 < kemmishtree> okay so we need three heads 19:48 < kanzure> we can add as many heads as we wantn 19:48 < CaptHindsight> if you really want a billion 19:48 < kemmishtree> to do a billion per second--but what's the pitch? and what form factor for the "paper" would be best 19:48 < CaptHindsight> x2 for two different fluids 19:48 < CaptHindsight> so 6 printheads 19:49 < CaptHindsight> print width is 112.44mm for each head 19:49 < CaptHindsight> 21um pitch 19:50 < CaptHindsight> nozzle pitch 19:50 < CaptHindsight> in inches 1200 x 1200 drops per inch 19:50 < kemmishtree> so 112.44 mm width... that would be 5311 spots? 19:50 < CaptHindsight> yes 19:51 < kemmishtree> okay, gotcha. And cost of a 6 head systems? 19:51 < CaptHindsight> if we have 3 heads side by side for each "ink" 19:52 < CaptHindsight> then X will be 112.44mm x 3 = 337.32mm 19:53 < kemmishtree> do you know how long it takes 1.5 pL of water to evaporate? 19:53 < CaptHindsight> and if we print square then 337.32 x 337.32mm 19:53 < CaptHindsight> depends on temp 19:54 < kemmishtree> so an added wrinkle, we might want the "paper" to have a thin sheet of solution covering it 19:54 < CaptHindsight> so ~13 x 13 inches 19:54 < CaptHindsight> printing on a non porous substrate? 19:55 < CaptHindsight> sheet of liquid or liquid in a porous sheet? 19:56 < CaptHindsight> how long between fluid passes? time between layers? 19:56 < kemmishtree> um, it's a little weird, but just for the sake of engineering talk... could we "print", deposit the droplets, onto a liquid surface? (nevermind why we might want to for now...) 19:57 < CaptHindsight> the drops eject at a pretty high velocity 19:57 < kemmishtree> each spot gets hit once per second ideally 19:57 < CaptHindsight> few meters per second 19:57 < kemmishtree> the high velocity could be good 19:57 < kemmishtree> the substrate might be porous, yes, or non-porous. don't know yet 19:57 < CaptHindsight> thats really the limiting factor with firing speeds 19:57 < CaptHindsight> the piezos can fire to MHz frequencies 19:57 < kemmishtree> what's the limiting factor with firing speeds? 19:58 < CaptHindsight> but the drops can only eject so fast 19:58 < kanzure> piezo electronics and droplet miniscus formation 19:58 < CaptHindsight> thats how one size nozzle produces multiple drop sizes 19:58 < kemmishtree> wait, you're saying the piezos can be activated faster than the meniscus can form, right? 19:58 < CaptHindsight> short burst of drops that combine together in flight 19:59 < CaptHindsight> yes 19:59 < kemmishtree> so is printing faster with smaller drop sizes? 19:59 < CaptHindsight> yes 19:59 < kemmishtree> if we wanted bigger drops would the heads be slower 19:59 < kemmishtree> okay 19:59 < kemmishtree> gotcha 19:59 < CaptHindsight> yes 20:00 < kemmishtree> and, technologically, is sub-picoliter inket printing on the horizon? 20:00 < CaptHindsight> whatever you want to pay for 20:00 < CaptHindsight> how slow can we make the 13" pass for each layer? 20:01 < CaptHindsight> 80m/minute is the top speed 20:01 < kanzure> well you said meters per second? that's more than enough for what kemmishtree is doing. 20:01 < kemmishtree> every spot needs to get hit at least once per second, presumably. 20:01 < kanzure> yeah up to 10 times/second, not 1k/second 20:01 < CaptHindsight> kanzure: that was about drop ejection velocity 20:02 < kanzure> 80m/min is 1 meter/sec? 20:02 < CaptHindsight> 80m/minute is the top speed at whwich the heads or substrate may travel at 1200 dpi 20:02 < CaptHindsight> two different things 20:03 < CaptHindsight> distance from printhead to substrate will be ~1mm 20:03 < CaptHindsight> nozzle plate to substrate ~1mm 20:04 < kemmishtree> can acetone be printed? 20:05 < kemmishtree> on the other end, at what point does viscosity become a problem for a given ink? 20:05 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has quit [Ping timeout: 246 seconds] 20:06 < CaptHindsight> Optimum Ink Viscosity [mPa*s] 5.5-6 20:06 < CaptHindsight> water is 1mPas 20:06 < kemmishtree> also... if I wanted to buy the super-simplest, cheapest, most-idiot proof inkjet printing system for just two different inks, what could I buy? (bare bare minimum of work required to be able to print two different inks that are mostly water.) 20:06 < CaptHindsight> flatbed? 20:07 < kemmishtree> wait, so it's actually better to have something more viscous than water? why is that? I thought that would make things slower 20:07 < kemmishtree> yeah with a flatbed, so I can do some simple tests with some biomolecular inks on a flat substrate, if that's what you mean. 20:07 < CaptHindsight> because inks are not just water 20:08 < kemmishtree> strong emphasis on not wanting to have to build or customize anything if possible, but the simplest, dumbest possible experimental setup that's not just me pipetting 20:09 < kemmishtree> Safe to assume that water prints faster than printer inks? 20:09 < CaptHindsight> water, dye or pigment, bacteriacide, humectant, glycol etc 20:09 < CaptHindsight> if the viscosity is too low then it won't produce nice drops 20:09 < CaptHindsight> they might be odd sizes and shapes 20:09 < CaptHindsight> same for too high a viscosity 20:10 < kemmishtree> I would be printing nucleotide solutions 20:10 < CaptHindsight> off the shelf printheads are made for a target market 20:10 < CaptHindsight> graphic arts, banners, documents and the inks that go with them 20:11 < CaptHindsight> everything else is not on their radar 20:11 < CaptHindsight> I posted those Kyocera heads as an example 20:11 < CaptHindsight> acetone has a pretty high vapor pressure 20:12 < CaptHindsight> straight acetone at 25C might be a little tricky for standard heads 20:13 < CaptHindsight> I'll be back in a few minutes 20:13 < kanzure> thanks captain 20:13 -!- CaptHindsight [~2020@unaffiliated/capthindsight] has quit [Quit: Leaving] 20:13 < kemmishtree> are you aware of anyone who has inkjet printed dNTPs (specifically, as opposed to phosphoramidites, etc.)? 20:15 < kanzure> he has stepped offline for a few moments 20:15 < kanzure> and he can't see your messages now 20:15 < kemmishtree> this is great 20:16 < kemmishtree> but I also need to step away for the night and have some time to daydream about it 20:16 < kemmishtree> I need to think about these numbers and what they mean 20:21 -!- MrHindsight [~2020@unaffiliated/capthindsight] has joined ##hplusroadmap 20:22 < MrHindsight> back 20:22 < MrHindsight> a 6 head system would be ~$250K with those heads 20:23 < MrHindsight> there are some ChinaCo flatbed printers that use the Epson heads but repeatability is awful to none 20:24 < MrHindsight> a few people got them and they could get them to make multiple passes over the same spots 20:24 -!- aeiousomething [~aeiousome@183.82.170.54] has joined ##hplusroadmap 20:24 < MrHindsight> sorry could not get 20:24 < MrHindsight> they are more of a t-shirt printer or knick knacks 20:25 < kemmishtree> ah okay... how much are they? how complex is it to make your own "ink" cartridge? 20:25 < kemmishtree> wouldn 20:25 < kemmishtree> twouldn't care much about precision or spacing, I mean just for proof of concept work 20:25 < MrHindsight> chinaco flatbed? 20:25 < MrHindsight> not sure how you'd get them working with what you want 20:26 < MrHindsight> they take several CC's to prime 20:26 < kemmishtree> that wouldn't be a problem 20:26 < MrHindsight> no way to get them to align themselves to previous print passes 20:27 < kemmishtree> ah okay 20:27 < MrHindsight> that was the issue people had when they came back to me after trying 20:28 < MrHindsight> on top of the lash they had in the mechanics 20:28 < kemmishtree> I just want to make sure we've got data for what we're doing that's based on an inkjet nozzling event, however crude, before we would have a $150K instrument built. I mean, a $100 inket non-flatbed printer might be fine for that 20:28 < MrHindsight> belt drive XY Cartesian system 20:28 < kemmishtree> but flatbed would be better 20:28 < kemmishtree> yes belt drive XY Cartesian system 20:28 < MrHindsight> you can try hacking an off the shelf epson 20:29 < kemmishtree> can we buy one pre-hacked? 20:29 < kemmishtree> or pay for the hacking? 20:29 < MrHindsight> thats what the ChinaCo units are 20:29 < MrHindsight> but no open firmware 20:30 < MrHindsight> you just send a image and hit print 20:30 < kemmishtree> so could I literally just buy an empty ink cartridge and fill out? or would it be obvious taking it apart how to attach my custom ink? 20:31 < MrHindsight> for example https://www.alibaba.com/product-detail/Digital-Inkjet-LED-UV-Flatbed-PCB_60554738760.html?spm=a2700.7724857.main07.71.400c7b07NR6cLK 20:32 < kanzure> can we just have MrHindsight do it. would he be interested? 20:32 < MrHindsight> the epson heads use a 20-30mL cartridge 20:33 < MrHindsight> http://www.kopykake.com/store/image.php?type=P&id=120 20:33 < kemmishtree> to make us something super-hacky and simple that we can just use for basic experiments, hoping to justify a bigger expenditure later on the real deal? 20:33 < MrHindsight> that holds just the fluid 20:33 < MrHindsight> it plugs into the heads 20:34 < kemmishtree> ah so I could just buy those and clean the hell out of them? or can they be purchased empty? 20:34 < MrHindsight> you can find empties in the refill kits 20:35 < MrHindsight> also the chip restters 20:35 < MrHindsight> resetters 20:35 -!- aeiousomething [~aeiousome@183.82.170.54] has quit [Ping timeout: 264 seconds] 20:35 < kemmishtree> what is a chip resetter? 20:35 < MrHindsight> they have an ID chip that counts drops 20:35 < MrHindsight> so it stops printing after a given number of drops no matter how much ink is left 20:36 < kemmishtree> is that a good engineering choice for some reason or just a way to increase revenue? 20:37 < MrHindsight> it's about revenue 20:37 < MrHindsight> ink cost $3/L and they sell it for $4k/L in little cartridges 20:38 < MrHindsight> thats why they give the printers away 20:38 < kemmishtree> do they actually lose money if the person never buys ink? 20:38 < MrHindsight> yeah 20:39 < MrHindsight> $40 is less than the cost to build 20:39 < kemmishtree> have you printed electronics? 20:39 < MrHindsight> yeah 20:39 < kemmishtree> any cool projects with printed electronics? 20:40 < kanzure> "Inkjet printing of micro-electro-mechanical systems (MEMS)" http://diyhpl.us/~bryan/papers2/mems/Inkjet%20printing%20of%20micro-electro-mechanical%20systems%20(MEMS)%20-%202017.pdf 20:40 < MrHindsight> inkjet is a real paranoid NDA industry 20:40 < MrHindsight> I recently signed an NDA with an older supplier I had not dealt with in a while and they only sent me marketing data sheets 20:41 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has joined ##hplusroadmap 20:41 < MrHindsight> they didn't want to send me a dozen or so pdf's without 1,000 more questions 20:41 < kemmishtree> would we use on-demand or continous print heads? 20:41 < MrHindsight> like he had to carry the pdf's up from his basement to send them :) 20:42 < kemmishtree> MrHindSight are you one of the authors on that MEMS paper? 20:42 < MrHindsight> on demand 20:42 < kanzure> no 20:44 < MrHindsight> the lowest cost system I could cobble together might be ~$25K 20:45 < MrHindsight> Epson heads on a XY table with <10um repeatability 20:46 < kanzure> cool 20:46 < MrHindsight> how long depends on how busy I am and what parts i have in stock 20:48 < MrHindsight> inert gas workcell, wash nozzles etc is another story 20:50 < kemmishtree> cool. might make sense to ask you to take that on soon-ish! 20:51 < kemmishtree> thanks for all your help! one more question for now: could these printheads work fine at an ambient temperaute of say 80°C? 20:52 < MrHindsight> thats a loaded question 20:52 < MrHindsight> the Epsons are made for room temp 20:53 < MrHindsight> they could go that high with reduced life 20:53 < kanzure> kemmishtree: if you need the surface to be heated, and the inkjet to not be heated then you would cool the inkjet with a cooling system 20:53 < kemmishtree> aye aye 20:53 < MrHindsight> nah, just head the bed 20:54 < MrHindsight> we print on hot plates/griddles all the time 20:54 < kemmishtree> hmmmm.... could the two inks be at very divergent temperatures? and/or could one nozzle be hot and the other cool? 20:54 < MrHindsight> https://www.walmart.com/ip/Presto-20-inch-Electric-Griddle/169174453?wmlspartner=wlpa&selectedSellerId=0&wl13=1256&adid=22222222227000000000&wl0=&wl1=g&wl2=c&wl3=42423897272&wl4=pla-51320962143&wl5=9057560&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=local&wl12=169174453&wl13=1256&veh=sem 20:54 < MrHindsight> sorry for the long link 20:54 < MrHindsight> should have checked first 20:55 < MrHindsight> ^$25 hot bed 20:55 < MrHindsight> kemmishtree: each head can be a different temp 20:56 < MrHindsight> we heat UV inks and waxes all the time in heads with integrated heaters 20:58 < MrHindsight> we used to have thermal inkjet heads like you find in your desktop inkjet printers 20:58 < MrHindsight> but Lexmark stopped making them 20:59 < MrHindsight> we could get virgin heads and fill with whatever worked 21:01 -!- kemmishtree [44e61c7d@gateway/web/freenode/ip.68.230.28.125] has quit [Ping timeout: 260 seconds] 21:03 <@fenn> you don't need inert gas right? 21:03 <@fenn> just printing in regular old air 21:06 < kanzure> no inert gas in this scenario 21:06 < kanzure> except maybe for washing, but undecided whether this is necessary, probably isn't 21:07 < MrHindsight> kemmishtree has left the building 21:08 < MrHindsight> I haven't found anyone to partner with in China to make printheads 21:08 < kanzure> yeah he's violently ill with the flu or something 21:08 < MrHindsight> is the shot any good this season? 21:09 < kanzure> superkuh: ^ 21:09 < MrHindsight> I heard maybe 10-30% this year 21:09 < superkuh> If you had it last year it's even less effective. 21:09 < superkuh> You need to get the cell culture based ones. 21:09 < superkuh> Not the egg ones. 21:09 < MrHindsight> had the flu or the shot? 21:09 < superkuh> The egg ones revert the wild type dominant mutation to the HA protein. 21:09 < MrHindsight> yeah what i read 21:10 < superkuh> Flucelvax and Flublok 21:10 < superkuh> Are the cell based culture vaccines. 21:10 < superkuh> And they'll provide the best protection this year. 21:11 < MrHindsight> how about a DIY vaccine kit? well you couldn't call it that 21:13 < MrHindsight> superkuh: can you take those after getting the egg based? 21:15 < MrHindsight> ok, I'm off 21:15 < MrHindsight> but I'll stay in the channel to check for questions later 21:15 -!- MrHindsight is now known as CaptHindsight 21:18 < superkuh> You can. I don't know how it'll effect it. If you had egg based last year the similarity (excepting HA sugar binding site) might decrease the immune response to cell based this year. 21:18 < superkuh> But I haven't seen any evidence to support that. 21:18 < superkuh> Just egg then egg. 21:19 < kanzure> https://viagenpets.com/dog-cloning/ 21:21 < CaptHindsight> superkuh: does it also go egg = trivalent and cell based = quad? 21:22 < CaptHindsight> or do they make both tri and quad with both methods? 21:23 < kanzure> "A dog or cat genetic preservation (GP) costs $1,600.00." 21:23 < kanzure> "Dog cloning costs are $50,000.00, paid in two equal installments. Cat cloning costs are $25,000.00, paid in two equal installments." 21:23 < CaptHindsight> not a bad racket 21:28 < nmz787> CaptHindsight: can you print onto another printhead? 21:29 -!- fenrir849 [a9fc0415@gateway/web/cgi-irc/kiwiirc.com/ip.169.252.4.21] has joined ##hplusroadmap 21:29 < nmz787> CaptHindsight: such that you could print back and forth? (if printing upside down would work) 21:30 < kanzure> you can print sideways i think 21:30 < kanzure> so just have two sides 21:38 < nmz787> lol @ the alibaba "RIP Software for free" 21:38 < nmz787> I think I get it, i.e. "relax"... but I generally associate RIP with death 21:42 < superkuh> CaptHindsight, the number of strains HA targeted doesn't have to do with the type of culture. 21:45 < kanzure> https://www.theverge.com/2017/7/21/15999544/biohacking-finger-magnet-human-augmentation-loss 21:49 < kanzure> http://web.archive.org/web/20170614030534/https://forum.biohack.me/discussion/2038/brutal-magnet-removal- 22:03 -!- Malvolio [~Malvolio@unaffiliated/malvolio] has quit [Ping timeout: 240 seconds] 22:22 -!- aeiousomething [~aeiousome@183.82.170.54] has joined ##hplusroadmap 22:28 -!- emeraldgreen [~user@188.227.115.178] has quit [Quit: Leaving.] 22:34 -!- yashgaroth [~yashgarot@2606:6000:cd4d:3300:f5e0:f867:a11d:8d52] has quit [Quit: Leaving] 22:48 -!- darsie [~username@84-114-73-160.cable.dynamic.surfer.at] has quit [Ping timeout: 248 seconds] 22:58 < adlai> "...humans had been forced off the planet by an AI defender of the ecosystem." << '''simpsons did it''' ? 22:59 < adlai> and by 'simpsons' i mean that biochemistry prof that got bored of popsci 23:01 < CaptHindsight> nmz787: RIP = raster image processor 23:02 < CaptHindsight> kanzure: piezo heads in general are made to print towards gravity 23:03 < CaptHindsight> with some tricks they may print up to 90 deg from that 23:03 < CaptHindsight> some TIJ head (thermal) can also print up, so 360 deg 23:04 -!- DataPacRat [~dan@adsl-107.itcanada.com] has quit [Quit: Leaving.] 23:10 -!- Gurkenglas [~Gurkengla@dslb-094-223-133-187.094.223.pools.vodafone-ip.de] has joined ##hplusroadmap 23:12 -!- MrHindsight [~2020@38.84.134.54] has joined ##hplusroadmap 23:12 -!- MrHindsight [~2020@38.84.134.54] has quit [Changing host] 23:12 -!- MrHindsight [~2020@unaffiliated/capthindsight] has joined ##hplusroadmap 23:15 -!- CaptHindsight [~2020@unaffiliated/capthindsight] has quit [Ping timeout: 260 seconds] 23:22 < nmz787> adlai: season and episode # plz 23:35 < adlai> nmz787: uh. S01E04 "Robots and Empire" 23:35 < adlai> oops SPOILER WARNING UNREAD LAST LINE THANK YOU 23:35 < adlai> nmz787: S02E02 "The Stars, Like Dust" 23:45 -!- Gurkenglas [~Gurkengla@dslb-094-223-133-187.094.223.pools.vodafone-ip.de] has quit [Ping timeout: 256 seconds] --- Log closed Wed Jan 03 00:00:01 2018