--- Log opened Mon Jun 09 00:00:29 2014 00:04 -!- heath [~ybit@unaffiliated/ybit] has quit [Ping timeout: 240 seconds] 00:04 -!- heath [~ybit@131.252.130.248] has joined ##hplusroadmap 00:08 -!- sheena [~home@d154-20-226-28.bchsia.telus.net] has joined ##hplusroadmap 00:10 < nmz787> welp apparently the hackaday raman spectrometer project hasn't actually been tested for signal yet, still cool, gave them some tips 00:18 < entelechy> talking about diy raman spectroscopy? 00:18 < entelechy> http://benkrasnow.blogspot.com/2013/05/intro-to-diy-raman-spectroscopy.html 00:19 < entelechy> this guy has done a cool one 00:35 < nmz787> yep 00:35 < nmz787> i talked with him about it at maker faire 00:35 < nmz787> entelechy: specifically I was talking about hackaday.io/project/1279-DIY-3D-Printable-RaspberryPi-Raman-Spectrometer 00:36 < nmz787> it sounds like ben has done better results-wise so far 00:36 < entelechy> yeah he calibrated it and whatnot 00:36 < entelechy> guy works for valve software as their engineer-in-residence 00:36 < nmz787> nice but old digicams seem like they can be found worldwide in grey markets 00:36 < nmz787> rather than 3d printers 00:36 < nmz787> nah google now 00:36 < nmz787> no longer at valve 00:37 < nmz787> i met his dad 00:37 < nmz787> he came up to my booth for takeitapart.com and was telling me how his kid started by taking stuff apart 00:37 < nmz787> and then i asked what he did and if he mentored him and what his kid was doing now 00:38 < nmz787> and he replied he was ham radio guy,( so that set the stage enough for me), then he said his son had a ruby crystal laser at a booth just a few booths down from ours 00:38 < nmz787> and of course i'd already seen it and seen it was ben's booth by that time 00:38 < nmz787> so i knew immediately this was his dad 00:38 < nmz787> it was really cool 00:39 < nmz787> then went and talked to ben for a few minutes 01:05 -!- delinquentme [~dingo@74.61.157.78] has quit [Ping timeout: 245 seconds] 01:06 < entelechy> ah right on 01:06 < entelechy> yeah hes got a bunch of cool videos 01:08 -!- drazak [~bleh@198.52.199.197] has quit [Ping timeout: 240 seconds] 01:08 -!- drazak [~bleh@198.52.199.197] has joined ##hplusroadmap 01:11 -!- cpopell [~cpopell@pool-71-255-241-91.washdc.fios.verizon.net] has quit [Ping timeout: 240 seconds] 01:12 -!- cpopell [~cpopell@pool-71-255-241-91.washdc.fios.verizon.net] has joined ##hplusroadmap 01:18 -!- ebowden_ [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has joined ##hplusroadmap 01:20 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has quit [Ping timeout: 240 seconds] 01:46 -!- ebowden_ [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has quit [Remote host closed the connection] 01:53 -!- EnLilaSko [EnLilaSko@unaffiliated/enlilasko] has joined ##hplusroadmap 01:57 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has joined ##hplusroadmap 01:58 -!- EnLilaSko [EnLilaSko@unaffiliated/enlilasko] has quit 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[~unf@wikipedia/nsh] has quit [Ping timeout: 260 seconds] 07:26 -!- Vutral [~ss@mirbsd/special/Vutral] has quit [Ping timeout: 265 seconds] 07:29 -!- mosasaur [~mosasaur@unaffiliated/mosasaur] has quit [Quit: Leaving.] 07:31 -!- ThomasEgi [~thomas@panda3d/ThomasEgi] has joined ##hplusroadmap 07:38 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 07:48 -!- HEx1 [~HEx@hexwab.plus.com] has quit [Read error: Connection reset by peer] 07:48 -!- HEx2 [~HEx@hexwab.plus.com] has joined ##hplusroadmap 07:57 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 240 seconds] 08:13 -!- nmz787_i [~nmccorkx@192.55.54.36] has joined ##hplusroadmap 08:13 -!- nmz787_i [~nmccorkx@192.55.54.36] has left ##hplusroadmap [] 08:13 -!- petrushka [~asakharov@24.60.79.55] has joined ##hplusroadmap 08:23 -!- joepie91_ [5064fe45@gateway/web/freenode/ip.80.100.254.69] has quit [Ping timeout: 246 seconds] 08:50 < kanzure> nmz787: just because it's easy to repurpose stuff you already have doesn't mean you should do it 08:51 < kanzure> nmz787: the idea is to make something repeatable that others can improve on if they choose to 08:51 < kanzure> nmz787: not garbage dive for a one in a trillion part that nobody else will be able to acquire 08:56 -!- justanotheruser [~andrew@unaffiliated/justanotheruser] has quit [Ping timeout: 240 seconds] 08:56 < kanzure> here's someone that might be selling silver halide film or microfilm stuff: http://www.ilfordphoto.com/aboutus/page.asp?n=23 08:57 < chris_99> ilford make nice produces, i use their 35mm b&w film 08:57 < chris_99> *products 09:00 < kanzure> what's the resolution? 09:00 < chris_99> no idea sorry, the lp/mm or somthing you mean i guess? 09:01 < kanzure> yes 09:01 < kanzure> i was looking at their spec sheet/pdf thing and it doesn't mention it 09:01 < chris_99> hmm must be somewhere 09:25 < ParahSailin> heh, transcriptic wants to talk to me 09:25 < kanzure> take it and run 09:26 < kanzure> i think they write in scheme 09:27 < ParahSailin> where on gnusha do you keep transcripts? 09:29 < kanzure> http://diyhpl.us/wiki/transcripts/startup-science-2012/max-hodak/ 09:31 -!- delinquentme [~dingo@74.61.157.78] has joined ##hplusroadmap 09:35 -!- nmz787_i [~nmccorkx@134.134.137.73] has joined ##hplusroadmap 09:36 -!- sapiosexual [~sapiosexu@d75-156-90-71.bchsia.telus.net] has joined ##hplusroadmap 09:37 < nmz787_i> dingo: around? do you know if wexpect uses a file for pipe file descriptors? i think my problem for stderr getting 'stuck' might have been too large a data without a newline to flush it (though I could be wrong) 09:46 < dingo> around, not (yet) familiar with expect, but if your child process is writing *a lot* of data, and you are trying to 'child.expect()' something from it, the expect() method will contoniously read (and exaust) the child's stdout/err buffer until it finds it 09:47 < dingo> in a pseudo-terminal (pty) stdout and err (and even stdin) are merged into a single file descriptor. I'm not as certain about wexpect, though. 09:47 < dingo> but if you're not .expect()'ing something, or manually calling .read/.read_nonblocking(), then teh child process will fill its output buffer -- usually 512, 4096, or 65534 bytes, and then block 09:47 < dingo> because he's calling sys.stderr.write('....') and the OS is blocking this call -- its stuck there 09:49 < dingo> traditionally, in posix, you might be right about stdout -- it is line-buffered, and stderr is unbuffered -- sys.stderr.write('x') is immediately received by the parent process/terminal -- but sys.stdout.write('x') is not, until sys.stdout.flush() or sys.stdout.write('\n newline') happens 09:49 < dingo> but really -- wexpect could be very different in these regards, i have not yet even begun to read its source code, but from the description, it implements an emulated console of its own for win32, so monsters there may be 09:56 < nmz787_i> yeah been reading the source, can't really tell where it's getting its data from... but I got a lead that piping to a file might handle the blocking issue 09:56 < nmz787_i> idk, i'll have to give it a try 10:12 < kanzure> "Although it still supports lxc, docker now defaults to libcontainer ( https://github.com/dotcloud/docker/tree/master/pkg/libcontainer ), it's own container implementation." 10:32 -!- tomkinsc [~tomkinsc@tomkinsc.wireless.rit.edu] has joined ##hplusroadmap 10:33 < tomkinsc> paperbot: http://journals.lww.com/headtraumarehab/Abstract/2005/05000/The_CDC_Traumatic_Brain_Injury_Surveillance.5.aspx 10:33 < paperbot> TypeError: descriptor 'find' requires a 'str' object but received a 'NoneType' (file "/home/bryan/code/paperbot/phenny/modules/scihub.py", line 55, in ) 10:40 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 10:41 < kanzure> like all engineering problems, this can be solved by submerging the whole machine i noil 10:41 < kanzure> like all engineering problems, this can be solved by submerging the whole machine in oil 10:51 -!- mosasaur [~mosasaur@unaffiliated/mosasaur] has joined ##hplusroadmap 11:00 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 260 seconds] 11:02 < nmz787_i> hi tomkinsc! 11:04 -!- tomkinsc [~tomkinsc@tomkinsc.wireless.rit.edu] has quit [Quit: http://takeitapart.com http://cht-t.com] 11:14 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 11:22 < kanzure> cold shoulder treatment 11:42 -!- justanotheruser [~andrew@unaffiliated/justanotheruser] has joined ##hplusroadmap 12:02 -!- FourFire [~fourfire@57-222-15.connect.netcom.no] has quit [Quit: Leaving] 12:11 -!- eudoxia [~eudoxia@r179-25-160-7.dialup.adsl.anteldata.net.uy] has quit [Quit: Lost terminal] 12:13 < kanzure> paperbot: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1242470 12:13 < paperbot> http://libgen.org/scimag/get.php?doi=10.1117%2F12.963734 12:15 < kanzure> are these new? http://magzdb.org/ ftp://libgen.org/pictures/ ftp://libgen.org/librusec/ http://libgen.org/biblio/batchsearchindex.php http://dc-poisk.no-ip.org/yndex.html http://dc-poisk.no-ip.org/ 12:17 < kanzure> http://bookzz.org/ isn't. http://bookfi.org/ i forget if it's the same owner or not. hrm. 12:18 < kanzure> ftp://libgen.org/librusec/Librusec/lib.rus.ec/ 12:25 -!- mosasaur [~mosasaur@unaffiliated/mosasaur] has quit [Quit: Leaving.] 12:33 < kanzure> (23 MB) http://liste.polymtl.ca/sympa/d_read/phy-mems/PartageInterne/Books/Rizvi2005HandbookofPhotomaskManufacturingTechnology.pdf 13:05 -!- justanotheruser [~andrew@unaffiliated/justanotheruser] has quit [Ping timeout: 260 seconds] 13:13 -!- justanotheruser [~andrew@72.12.216.49] has joined ##hplusroadmap 13:13 < kanzure> kodak still sells microfilm (800 lines per mm, so 1 micron resolution?) http://graphics.kodak.com/docimaging/uploadedFiles/d30.pdf 13:15 < chris_99> what are you planning to use it for? 13:15 < kanzure> photomask 13:16 < kanzure> really i think you can just take a picture on normal camera film, shine light through it, and get microstructures... 13:16 < chris_99> a photomask for what sorry? 13:17 < kanzure> stuff, you know 13:17 < kanzure> photomask for micron-resolution lithography (microelectronics, microfluidics, microwhatever) 13:17 < chris_99> aha 13:18 < kanzure> paperbot: http://search.proquest.com/docview/275856268 13:18 -!- sapiosexual is now known as sapiosexual|away 13:29 < kanzure> this seems like a cool group, http://www.ime.tsinghua.edu.cn/publish/wdzs/323/index.html 13:29 < kanzure> .title 13:29 < yoleaux> Institute of Microelectronics, Tsinghua University 13:29 < gradstudentbot> I think the centrifuge is broken. 13:30 < delinquentme> Not sure if you guys already know about this: https://www.indiegogo.com/projects/vocore-a-coin-sized-linux-computer-with-wifi 13:30 < delinquentme> super small linux computer w wifi 13:31 < chris_99> oh yeah i've seen that, looks interesting, it's the MIPS one right 13:32 < ParahSailin> yeah thats the top school there 13:33 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 265 seconds] 13:35 -!- justanotheruser [~andrew@72.12.216.49] has quit [Ping timeout: 240 seconds] 13:36 < kanzure> why does the us army own patents? 13:37 -!- justanotheruser [~andrew@c-50-129-87-238.hsd1.in.comcast.net] has joined ##hplusroadmap 13:38 -!- chris_99 [~chris_99@unaffiliated/chris-99/x-3062929] has quit [Remote host closed the connection] 13:40 -!- chris_99 [~chris_99@unaffiliated/chris-99/x-3062929] has joined ##hplusroadmap 13:41 < kanzure> ParahSailin: i'm trying to find tao deng 518-387-5473 518-387-7548 (emails are bouncing) 13:44 < gradstudentbot> That's enzymatically impossible. 13:49 < ParahSailin> hadn't thought about this, but snake antivenom is typically a polyclonal ab http://metronews.ca/health/3715/anti-venom-crisis-in-ontario/ 13:52 < kanzure> "Layer by layer, the B9Creator uses the light from a Vivitek projector to cure photo-initiated resin rather than extruding plastic. It's similar to the Form1's stereolithography, but can print objects with an XY resolution of 50 microns and a Z resolution of 25 microns." 13:56 -!- chris_99 [~chris_99@unaffiliated/chris-99/x-3062929] has quit [Ping timeout: 252 seconds] 13:57 < kanzure> https://github.com/lansing-makers-network/buildlog-lasercutter-marlin 13:58 -!- Viper168 [~Viper@unaffiliated/viper168] has quit [Ping timeout: 260 seconds] 13:59 -!- chris_99 [~chris_99@unaffiliated/chris-99/x-3062929] has joined ##hplusroadmap 14:02 < kanzure> https://www.kickstarter.com/projects/b9creations/b9creator-a-high-resolution-3d-printer/posts/244460 14:02 < kanzure> hmm 14:02 < kanzure> if these machines are really doing micron-resolution stuff, then why are there no microscope images of the work 14:03 < kanzure> https://groups.google.com/forum/#!topic/muve-3d-support-group/rv0FJG5TXZU 14:03 < kanzure> "0.0275 mm per step AKA the smallest definable distance the controller can command" 14:04 -!- Viper168 [~Viper@unaffiliated/viper168] has joined ##hplusroadmap 14:04 < kanzure> so 30 micron steps 14:05 -!- andrew [~andrew@c-50-129-87-238.hsd1.in.comcast.net] has joined ##hplusroadmap 14:06 < nmz787_i> here's the DMD direct write machine paper showing interpixel photoresist feature noise 14:06 < nmz787_i> http://www.intelligentmp.com/Downloads/Technical%20Papers/SF-100%20Greyscale%20Paper.pdf 14:06 -!- andrew [~andrew@c-50-129-87-238.hsd1.in.comcast.net] has quit [Changing host] 14:06 -!- andrew [~andrew@unaffiliated/justanotheruser] has joined ##hplusroadmap 14:06 -!- andrew [~andrew@unaffiliated/justanotheruser] has quit [Client Quit] 14:06 -!- andrew_ [~andrew@c-50-129-87-238.hsd1.in.comcast.net] has joined ##hplusroadmap 14:06 -!- andrew_ [~andrew@c-50-129-87-238.hsd1.in.comcast.net] has quit [Changing host] 14:06 -!- andrew_ [~andrew@unaffiliated/justanotheruser] has joined ##hplusroadmap 14:06 < nmz787_i> they have lots of other papers on their site too 14:07 -!- justanotheruser [~andrew@c-50-129-87-238.hsd1.in.comcast.net] has quit [Ping timeout: 265 seconds] 14:07 -!- andrew_ is now known as justanotheruser 14:07 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 14:13 -!- maaku [~quassel@50-0-36-179.dsl.dynamic.sonic.net] has quit [Remote host closed the connection] 14:20 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 260 seconds] 14:21 < kanzure> jmil is focusing on large z height dlp printing, apparently 14:21 < kanzure> he has expressed a disinterest in planar investigations of resolution 14:21 < kanzure> also he has some photographs of the resolution here http://open3dlp.blogspot.com/2013/09/what-month.html 14:29 < kanzure> ugh the dlp dev kit is very inconvienently priced. it means if i buy a few, i'm less likely to run into others that also have it and are willing to test/build with it. 14:31 < kanzure> i wonder what's in the dev kit anyway. just the pcb? or are all of the other micromirror array devices locked down? 14:33 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 14:35 < kanzure> hm, so, i think it should be kept low-tech: uv/bluray led, projection of laser-printed transparency sheet, dlp stuff would be nice but if others build the device and end up with different projector equipment it will be annoying and intractable 14:37 < kanzure> /win 6 14:37 < kanzure> fail 14:37 < gradstudentbot> Are you published? 14:43 < paperbot> RuntimeError: maximum recursion depth exceeded in cmp (file "/usr/lib/python2.7/_weakrefset.py", line 73, in __contains__) 14:44 < heath> https://docs.google.com/document/d/17OTxjE5zl34VcXiAORayFOCDIkyRCiefh1ZBN1qEBUc/edit 14:44 < heath> center for open science: strategic plan 14:45 < heath> "6. Make all academic research discoverable and accessible" 14:46 < heath> "5. Adjust incentives to make “getting it right” more competitive with “getting it published” " 14:46 < kanzure> they are lying, they probably only mean the stuff they have access to (for #6) 14:46 < heath> "4. Foster an interdisciplinary community of open source developers, scientists, and organizations." 14:47 < heath> I'm not sure if #3 is possible 14:47 < kanzure> this is not a plan 14:47 < heath> "3. Join infrastructures to support the entire scientific workflow in a common framework" 14:48 < heath> they are wanting me to review this and maybe make some suggestions on what possible projects i would work on if i joined them 14:49 < kanzure> my review would be very negative and scathing 14:49 < heath> :) 14:49 < kanzure> top-down demands for "organizational synergy" are just not going to do anything 14:50 < heath> I feel like it may be a decent framework for certain typing of researchers, but it seems like it could get in the way of other work 14:50 < heath> s/typing/types 14:51 < heath> iirc after a conversation with someone from there last year, version control to some people is saving a Word document with a new file name 14:51 < heath> and i think this is their target audience right now 15:00 < kanzure> huh, i didn't know about LCD projectors 15:04 < kanzure> paperbot: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5351890 15:04 < kanzure> .title 15:04 < paperbot> http://libgen.org/scimag/get.php?doi=10.1109%2FMHS.2009.5351890 15:04 < yoleaux> Development of the maskless photolithography device with an LCD-projector for fabrication of micropa... 15:05 < gradstudentbot> The freezer was too cold and fucked up my sample DNA. 15:07 < kanzure> here it is, 15:07 < kanzure> http://diyhpl.us/~bryan/papers2/optics/photolithography/Second-generation%20maskless%20photolithography%20device%20for%20surface%20micropatterning%20and%20microfluidic%20channel%20fabrication%20(using%20an%20LCD%20projector).pdf 15:09 < kanzure> "The fabrication of polyacrylamide (PAAm) micropatterns was performed with a 5x objective lens to adjust the final resolution to 2.5 microns/pixel, and the two-step procedure was employed as described previously.[10]" 15:10 < kanzure> "For the fabrication of PDMS microchannels, a 3x objective lens was employed to adjust the resolution to 5 microns/pixel." 15:16 -!- Netsplit *.net <-> *.split quits: realzies 15:24 -!- Netsplit over, joins: realzies 15:46 < nmz787_i> LCD still has interpixel dead zones 15:47 < nmz787_i> I think the best bet is to trace with a laser 15:52 -!- yorick [~yorick@oftn/member/yorick] has quit [Remote host closed the connection] 15:54 < kanzure> nmz787_i: i think the dead zones can be fixed using this method, 15:54 < kanzure> http://diyhpl.us/~bryan/papers2/optics/photolithography/Development%20of%20microfabrication%20technology%20with%20maskless%20photolithography%20device%20using%20LCD%20projector%20-%20Itoga%20-%202010.pdf 15:55 < kanzure> basically just have sub-pixel resolution motion to account for the dead zones 15:57 -!- EnLilaSko [EnLilaSko@unaffiliated/enlilasko] has quit [Quit: - nbs-irc 2.39 - www.nbs-irc.net -] 16:02 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 276 seconds] 16:21 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 16:25 -!- Viper168_ [~Viper@unaffiliated/viper168] has joined ##hplusroadmap 16:27 -!- Viper168 [~Viper@unaffiliated/viper168] has quit [Ping timeout: 252 seconds] 16:28 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has joined ##hplusroadmap 16:37 < nmz787_i> oh, yeah, sure, sub-pixel movement is gonna be real easy without a nanostepper 16:37 < nmz787_i> :P 16:37 < nmz787_i> i cant read that now 16:40 < kanzure> you should double check whether or not that actually solves it 16:47 -!- HashNuke [uid12117@gateway/web/irccloud.com/x-gcjfkjvwhrxoobwh] has joined ##hplusroadmap 16:57 -!- FourFire [~fourfire@120-192-15.connect.netcom.no] has joined ##hplusroadmap 17:06 < nmz787_i> kanzure: well it probably would, but again, now we need some nanostepper 17:08 < kanzure> you mean to say nanosteppers don't grow on trees? 17:08 < delinquentme> what is nanostepper? 17:08 < kanzure> it is a stepper that steps using nm 17:08 < kanzure> *using nm steps 17:08 < delinquentme> Sure I mean the implementation though. You're just using gearing and a typical stepper right? 17:09 < kanzure> well that paper used one called "KY1250C-L" 17:09 < delinquentme> hahahah 17:09 < delinquentme> jesus. 17:09 < kanzure> .title http://www.spectracore.com/KY1250CL.html 17:09 < yoleaux> KY1250C-L Motorized Crossed Roller XY Axis 120x120mm Platform 50mm Travel Stage 17:09 < kanzure> "Resolution: 0.05micrometer(1/20)" 17:09 < delinquentme> Ehh itll work. 17:10 < kanzure> 50 nm step 17:10 < delinquentme> yeah its using gear boxes ... And its certainly pretty 17:10 < delinquentme> But the connectors just scream "markup" 17:10 < delinquentme> Y no 4 or 8 pin connections? 17:12 < kanzure> who knows, i'm just quoting what the paper said 17:12 < delinquentme> I'd guess they also sell just the mechanical stage 17:13 < delinquentme> and depending on the application that could be easier if you just slap your own steppers in on it 17:13 < kanzure> fenn's laser cutter design is 1.5875 microns per step 17:14 < delinquentme> The biodome: http://www.ncbi.nlm.nih.gov/pubmed/20708956 17:15 < delinquentme> dude. fucking pig bladders 17:15 < delinquentme> we throw that shit on EVERYTHING. Humans, horses , mice 17:22 < kanzure> ugh "Since 2005,[7] the only remaining manufacturers of the LCDs for LCD projectors are Japanese imaging companies Epson and Sony." 17:23 -!- nmz787_i [~nmccorkx@134.134.137.73] has quit [Ping timeout: 260 seconds] 17:24 < kanzure> oh, "According to electronics industry research company Pacific Media Associates, projectors using 3LCD technology comprised about 51% of the world's digital projector market in 2009.[2]" 17:25 < kanzure> .wik liquid crystal on silicon 17:25 < yoleaux> "Liquid crystal on silicon (LCoS or LCOS) is a "micro-display" technology developed initially for projection televisions but now used also in Wavelength Selective Switches, structured illumination and Near-eye displays." — http://en.wikipedia.org/wiki/Liquid_crystal_on_silicon 17:29 < kanzure> did not know this "Texas Instruments' DLP (Digital Light Processing) relies on a spinning color wheel to reproduce images" 17:29 < kanzure> makes sense though, since the mirrors need to reflect something 17:32 < kanzure> i can't tell if that means lcd projectors are dying or not 17:32 < chris_99> laser projectors seem a cool idea to me 17:45 -!- FourFire [~fourfire@120-192-15.connect.netcom.no] has quit [Quit: Leaving] 17:59 -!- chris_99 [~chris_99@unaffiliated/chris-99/x-3062929] has quit [Quit: Leaving] 18:35 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 252 seconds] 18:35 -!- nmz787_i [nmccorkx@nat/intel/x-yihqzbkqvdxjifzo] has joined ##hplusroadmap 18:47 < kanzure> nmz787_i: so, the one reason to go with the LCD method is that the pixels are already pretty small. you only need a 2-5x objective as opposed to 100x plus oil immersion or w/e. 18:54 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 18:55 -!- [nsh] [~unf@wikipedia/nsh] has quit [Max SendQ exceeded] 18:55 -!- [nsh] [~unf@wikipedia/nsh] has joined ##hplusroadmap 18:56 -!- kuudes [~vuokra@dsl-olubrasgw2-58c0c7-183.dhcp.inet.fi] has quit [Quit: kuudes] 19:21 -!- Vutral [~ss@mirbsd/special/Vutral] has joined ##hplusroadmap 19:21 -!- maaku [~quassel@50-0-36-179.dsl.dynamic.sonic.net] has joined ##hplusroadmap 19:22 -!- maaku is now known as Guest39249 19:22 -!- [nsh] [~unf@wikipedia/nsh] has quit [Ping timeout: 245 seconds] 19:42 -!- HashNuke [uid12117@gateway/web/irccloud.com/x-gcjfkjvwhrxoobwh] has quit [Quit: Connection closed for inactivity] 19:46 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has quit [Remote host closed the connection] 20:00 < nmz787_i> kanzure: but i'm saying get away from pixels altogether 20:01 < kanzure> isn't a laser beam just a non-square pixel 20:01 < nmz787_i> kanzure: binocular microscope, video in one ocular, laser in the other, bluray next to the objective too (so two write methods and a read method)... then have a laser printed grid of lines under the objective, use fast video camera to feedback for motion control of the stage and absolute positioning 20:02 < nmz787_i> well except that when you drag it it, well, drags 20:02 -!- ThomasEgi [~thomas@panda3d/ThomasEgi] has quit [Remote host closed the connection] 20:02 < nmz787_i> so if the drag operation is relatively smooth, there is less interpixel noise 20:02 < nmz787_i> fenn would say something about inertia smoothing things 20:03 < kanzure> cannibalizing a microscope isn't a good idea- we should just buy the objectives and put it on the frame ourselves 20:03 < nmz787_i> so maybe video would only be needed to calibrate once, in case of any large leadscrew errors or something 20:03 < nmz787_i> or to watch for backlash 20:03 < nmz787_i> a microscope is a microscope, i said nothing about cannibalizing there 20:04 < nmz787_i> it will be harder to make a bino microscope though 20:04 < nmz787_i> it would be much easier to outsource to some factory in china, my time is already pretty limited now 20:04 < kanzure> why do you want binocular 20:04 < nmz787_i> so you can have video and laser 20:04 < kanzure> most people mean the eye-level thing when they say binocular 20:04 < nmz787_i> no 20:05 < nmz787_i> well 20:05 < nmz787_i> i mean, yeah, there's a beamsplitter 20:05 < nmz787_i> that has been hopefully finely and well adjusted 20:05 < nmz787_i> (i used the word ocular, which is the eyepiece lense unit) 20:05 < kanzure> "cannibalizing" means buying an existing microsocpe, removing its stage and replacing it with ours, etc. 20:06 < nmz787_i> they might sell us a scope cheaper if we didnt want the stage 20:06 < nmz787_i> idk 20:06 < kanzure> and what's with the weirdo curved neck they all have, ugh 20:07 < nmz787_i> why does it matter? 20:07 < nmz787_i> you want it hooked up to internet anyway 20:07 < nmz787_i> :/ 20:07 < nmz787_i> does jules have any time? 20:08 < kanzure> what does jules have to do with it? 20:08 < kanzure> it matters because project repeatability 20:08 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has joined ##hplusroadmap 20:08 < kanzure> what's so bad about building a frame anyway 20:09 < kanzure> you get to put everything where you need it instead of where it happens to be 20:09 < nmz787_i> jules is pretty god with optics 20:09 < nmz787_i> and he's local so that makes physical collab easier for a hardware project 20:10 < kanzure> i think this is going to end up being like a single objective 20:11 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has quit [Remote host closed the connection] 20:13 < nmz787_i> right 20:14 < kanzure> with the trifocal microscopes part of the problem is mounting your other equipment on that third ocular 20:14 < kanzure> with your own design, you could make something more sane that isn't putting its weight on that vertical tube 20:15 < nmz787_i> trinocular 20:15 < kanzure> oh right 20:15 < kanzure> not trifocal 20:15 < nmz787_i> i said bino earlier 20:15 < nmz787_i> FWIW the trinocular mounts are usually quite solid 20:16 < nmz787_i> mounting onto the oculars is much more of a head-scratcher for me 20:16 < nmz787_i> beacuse they're absolutely not made to be attached to 20:16 < nmz787_i> i'd like you to find someone to improve that openlabtools CAD 20:16 < kanzure> that just seems silly to me- i can't think of a situation where i wouldn't want to be able to attach things 20:17 < kanzure> you mean someone to redo it? 20:17 < nmz787_i> yeah and do any additions 20:17 < kanzure> i was thinking of redoing them myself since i didn't like stl 20:17 < nmz787_i> I'm not too quick with CAD stuff 20:17 < nmz787_i> at least not the 3d printed stuff 20:17 < nmz787_i> is that how you'd want this to be done, 3d printed? 20:18 < kanzure> oof, i haven't thought about it 20:18 < kanzure> is there any reason to go one way or the other 20:19 < kanzure> besides cost 20:19 < nmz787_i> structure, how much weight it can support 20:19 < nmz787_i> flexibility 20:19 < nmz787_i> don't want it twisting around and deforming with stress 20:19 < nmz787_i> going out of calibration 20:19 < nmz787_i> whatever that may or may not consist of 20:20 < kanzure> oh right, weight.. let's estimate a projector is 5 kg at most 20:20 < nmz787_i> i was planning on microstepping geared stepper motors 20:20 < nmz787_i> there would be backlash 20:20 < nmz787_i> but i think it should be pretty dang smooth travel 20:21 < nmz787_i> (also I already have a working DMD with the light removed and have shined a laser into to get an image successfully) 20:21 < nmz787_i> i found a decent laser seller on aliexpress 20:22 < nmz787_i> basically a 405nm laser with a metal heatsink and adjustable glass focus lens 20:22 < nmz787_i> like $40 i think 20:22 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has joined ##hplusroadmap 20:22 < nmz787_i> I never ordered it tho 20:23 < kanzure> the gearbox stepper you wanted was NEMA 17? 20:34 < kanzure> oh you can turn a NEMA 17 into a screw actuator 20:35 < kanzure> .title http://www.pololu.com/product/2268 20:35 < yoleaux> Stepper Motor with 28cm Lead Screw: Bipolar, 200 Steps/Rev, 42×38mm, 2.8V, 1.7 A/Phase 20:36 < kanzure> "The nut moves 8.0 mm per full revolution of the lead screw, which allows for a linear resolution of 0.040 mm per full step of the stepper motor. Even smaller step sizes can be achieved through microstepping, which is a feature of many bipolar stepper motor drivers. We recommend the DRV8825 stepper motor driver carrier for use with this stepper motor, which allows for a linear resolution of 1.25 µm per 1/32 microstep. However, please note ... 20:36 < kanzure> ... that the nut is not spring loaded, so changes in direction will result in loss of positioning precision due to backlash." 20:44 < kanzure> would moving forward more than you need be sufficient to eat the backlash? 20:44 < kanzure> or would the microstepping still be off 20:49 < nmz787_i> yeah you have to compensate for backlash 20:49 < nmz787_i> which is why i was thinking live video of a grid reticle (laser printed checkerboard) 20:50 < nmz787_i> blob tracking 20:50 < nmz787_i> whether live or mostly calibration, idk yet 20:52 < nmz787_i> i was thinking these to start out with, if it was just a microscope slide or piece of spin-coated silicon/glass http://robocraft.ru/files/datasheet/28BYJ-48.pdf 20:53 < nmz787_i> i already have them microstepping with PWM with a 128 point sine lookup table 20:53 < kanzure> .title http://liutaiomottola.com/Tools/Backlash.htm 20:53 < yoleaux> Backlash in Lead Screws: What It is and What to do About It 20:53 < nmz787_i> for an attempt to increase smoothness 20:53 < kanzure> it mentions a software fix which is exactly my "eat the backlash" method.. so whatever. 20:54 < nmz787_i> those motors are apparently from auto HVAC vent controls 20:54 < nmz787_i> with a driver board and wires and connectors they're like $3 or $4 20:54 < kanzure> is that a 5.6 degree stepping angle? 21:05 < nmz787_i> its less than 1 since its geared, then with the microstepping even more 21:06 < nmz787_i> microstepping is basically free for smoothing the power out, but with all the gears and such, you need to do all the positioning based off the home/center point 21:06 < nmz787_i> you can't say 50 microsteps to the right is 5 microns 21:07 < nmz787_i> you'd need to ask how many microsteps is it to get 5 microns, from the calibration data, to know at that point on the stage, how many microsteps it will take to travel 21:07 < kanzure> yep 21:07 < nmz787_i> so again, the video 21:09 < kanzure> would be nice to have a scalable number of oculars, based on adding mirrors or whatever 21:09 < nmz787_i> kanzure: i guess you could start working from fenn's model, and redo the openlabtools augmentation 21:09 < kanzure> augmentation? 21:09 < nmz787_i> i think it might just be another of fenn's model rotated and added on 21:09 < nmz787_i> well for the Z 21:09 < nmz787_i> i dont remember how far along his model was 21:10 < nmz787_i> that's why infinity corrected objectives are nice 21:10 < nmz787_i> the only req is a 'tube lens' 21:10 < nmz787_i> which I asked about here https://github.com/OpenLabTools/Microscope/issues/2 21:11 < nmz787_i> i bought a plano convex or two from ebay a while ago that were unused nice edmunds or thorlabs surplus 21:12 < nmz787_i> I think it could probably be a smaller diameter 21:12 < nmz787_i> and idk where a good new source is 21:14 < kanzure> "Yes, sorry for the disorganised state of our wiki, with 5 people working on the project for 10 weeks we spent most of the time building and not enough time organising our work." 21:14 < kanzure> why so many people?? 21:27 -!- drewbot [~cinch@ec2-23-22-161-49.compute-1.amazonaws.com] has quit [Remote host closed the connection] 21:27 -!- drewbot [~cinch@ec2-54-198-164-198.compute-1.amazonaws.com] has joined ##hplusroadmap 21:30 -!- lichen [~lichen@c-50-139-11-6.hsd1.or.comcast.net] has quit [Quit: Lost terminal] 21:43 < kanzure> neat, there are gigahertz-range rf microfluidic antennas built with liquid metal 21:44 -!- ebowden [~ebowden@CPE-60-231-178-117.lns4.dav.bigpond.net.au] has quit [Remote host closed the connection] 21:52 -!- sapiosexual|away is now known as sapiosexual 22:05 -!- Viper168 [~Viper@unaffiliated/viper168] has joined ##hplusroadmap 22:07 -!- Viper168_ [~Viper@unaffiliated/viper168] has quit [Ping timeout: 260 seconds] 22:09 -!- nshlol [~unf@wikipedia/nsh] has joined ##hplusroadmap 22:09 < kanzure> .title http://www.microfluidics.iis.u-tokyo.ac.jp/r09001.html 22:09 < yoleaux> EO pump-based system 22:09 -!- nshlol [~unf@wikipedia/nsh] has quit [Max SendQ exceeded] 22:11 < kanzure> "This study reports the development of a prototype sheet-like soft actuator named a "microhydraulic actuator", which creates a 3D motion from a planar body with 2D fluidic channel patterns (Fig. A). In our proposed microhydraulic system, the miniaturized electroosmotic pumps (EOPs) as the pressure generating devices are embedded into the sheet-like body of the actuator for integration, miniaturization and low-power-consumption of the total ... 22:11 < kanzure> ... system." http://www.microfluidics.iis.u-tokyo.ac.jp/r13013.html 22:11 -!- nshlol [~unf@wikipedia/nsh] has joined ##hplusroadmap 22:14 < kanzure> microfluidic pump array instead of using a bunch of external syringe pumps http://www.microfluidics.iis.u-tokyo.ac.jp/r10001.html 22:18 < kanzure> particle sorting by using surface relief structures http://www.microfluidics.iis.u-tokyo.ac.jp/r08004.html 22:20 -!- nshlol [~unf@wikipedia/nsh] has quit [Ping timeout: 252 seconds] 22:34 -!- nshlol [~unf@wikipedia/nsh] has joined ##hplusroadmap 22:38 -!- nshlol [~unf@wikipedia/nsh] has quit [Max SendQ exceeded] 22:39 -!- nshlol [~unf@wikipedia/nsh] has joined ##hplusroadmap 22:40 -!- nshlol [~unf@wikipedia/nsh] has quit [Max SendQ exceeded] 22:53 -!- Guest39249 is now known as maaku 23:02 < kanzure> yeesh this is a bulky microscope http://www.zeiss.com/microscopy/en_de/products/light-microscopes/axio-imager-2-for-biology.html 23:11 < kanzure> multi-ocular microscope http://www.microscopesmanufacturer.com/product/COAXIAL%20MICROSCOPES/HL-54.jpg 23:15 < kanzure> geeze they sell that for $9k? http://www.ebay.com/itm/Accu-Scope-3025-5-Head-Multi-Viewing-Observation-Teaching-Microscope-New-/261491632472?pt=LH_DefaultDomain_0&hash=item3ce21da958 23:42 -!- Todh5als [32a85fbe@gateway/web/freenode/ip.50.168.95.190] has joined ##hplusroadmap 23:43 < kanzure> Todh5als: hi 23:45 < Todh5als> hi, kanzure 23:47 -!- Todh5als [32a85fbe@gateway/web/freenode/ip.50.168.95.190] has quit [Quit: Page closed] --- Log closed Tue Jun 10 00:00:30 2014