--- Log opened Fri Jun 28 00:00:54 2019 00:01 -!- MarkOtaris [mark-otari@wikimedia/Mark-Otaris] has joined ##hplusroadmap 00:02 < docl> hmph indeed 00:24 -!- kun0[m] [kun0matrix@gateway/shell/matrix.org/x-edovfclxmsqbqqsh] has joined ##hplusroadmap 00:37 -!- midnightmagic [~midnightm@unaffiliated/midnightmagic] has quit [Ping timeout: 264 seconds] 00:51 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 00:51 -!- midnightmagic [~midnightm@unaffiliated/midnightmagic] has joined ##hplusroadmap 00:56 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 244 seconds] 01:52 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 01:57 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 245 seconds] 01:57 -!- sektor [~sektor@95.87.234.241] has joined ##hplusroadmap 02:08 < kanzure> https://forklog.com/budushhee-po-bishopu-razrabotchik-bitkoina-rasskazal-o-dizajnerskih-mladentsah-kriptovalyutah-i-libra-ot-facebook/ 02:15 < archels> "speed dial master Brian Bishop" heh 02:25 -!- Urchin[emacs] [~user@unaffiliated/urchin] has quit [Ping timeout: 268 seconds] 02:35 -!- adamsky [~adamsky3@178235181168.unknown.vectranet.pl] has joined ##hplusroadmap 02:43 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has quit [Ping timeout: 276 seconds] 02:49 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has joined ##hplusroadmap 02:52 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 02:58 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 272 seconds] 03:40 -!- brett-soric [~brett@ppp203-122-220-93.static.internode.on.net] has joined ##hplusroadmap 03:53 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 03:57 -!- spaceangel [~spaceange@ip-62-24-76-6.net.upcbroadband.cz] has joined ##hplusroadmap 03:58 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 246 seconds] 04:29 -!- brett-soric [~brett@ppp203-122-220-93.static.internode.on.net] has left ##hplusroadmap [] 04:36 -!- jtimon [~quassel@205.201.35.37.dynamic.jazztel.es] has joined ##hplusroadmap 04:54 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 04:59 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 248 seconds] 05:51 -!- Urchin[emacs] [~user@unaffiliated/urchin] has joined ##hplusroadmap 05:54 -!- Urchin[emacs] [~user@unaffiliated/urchin] has quit [Disconnected by services] 05:55 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 05:56 -!- Urchin[emacs] [~user@unaffiliated/urchin] has joined ##hplusroadmap 06:00 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 245 seconds] 06:11 -!- LeoTal [~Adium@2001:44b8:4167:bc00:c070:9424:b2fc:4707] has quit [Quit: Leaving.] 06:56 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 06:57 -!- LeoTal [~Adium@2001:44b8:4167:bc00:166:c7ea:bd32:1334] has joined ##hplusroadmap 06:58 -!- LeoTal [~Adium@2001:44b8:4167:bc00:166:c7ea:bd32:1334] has quit [Client Quit] 06:58 -!- sachy [~sachy@91.146.121.5] has joined ##hplusroadmap 07:01 < kanzure> https://forklog.media/exclusive-former-ledgerx-engineer-bryan-bishop-on-cryptocurrencies-libra-and-designer-babies/amp/ 07:01 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 245 seconds] 07:46 -!- priontology [~scionce@63.228.208.98] has quit [Quit: https://quassel-irc.org - Chat comfortably. Anywhere.] 07:57 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 08:02 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 245 seconds] 08:03 -!- Jay_Dugger [~Whickety@47.185.218.207] has joined ##hplusroadmap 08:05 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 08:25 -!- yashgaroth [~ffffffff@2606:6000:ca81:3100:955e:38f1:142d:4c2b] has joined ##hplusroadmap 08:55 -!- transhumanist [~transhuma@2601:196:8800:6719:1c34:9aa9:1347:4ad7] has joined ##hplusroadmap 09:08 -!- priontology [~scionce@63.228.208.98] has joined ##hplusroadmap 09:23 -!- jtimon [~quassel@205.201.35.37.dynamic.jazztel.es] has quit [Quit: gone] 09:27 -!- spaceangel [~spaceange@ip-62-24-76-6.net.upcbroadband.cz] has quit [Remote host closed the connection] 09:36 -!- adamsky [~adamsky3@178235181168.unknown.vectranet.pl] has quit [Remote host closed the connection] 09:48 -!- priontology [~scionce@63.228.208.98] has quit [Quit: https://quassel-irc.org - Chat comfortably. Anywhere.] 09:55 -!- spaceangel [~spaceange@ip-62-24-76-6.net.upcbroadband.cz] has joined ##hplusroadmap 10:15 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has quit [Ping timeout: 276 seconds] 10:37 -!- hehelleshin [~talinck@98.29.27.253] has joined ##hplusroadmap 10:41 -!- helleshin [~talinck@98.29.27.253] has quit [Ping timeout: 272 seconds] 10:57 -!- yashgaroth [~ffffffff@2606:6000:ca81:3100:955e:38f1:142d:4c2b] has quit [Read error: Connection reset by peer] 10:58 -!- yashgaroth [~ffffffff@cpe-76-176-31-235.san.res.rr.com] has joined ##hplusroadmap 11:11 -!- transhumanist [~transhuma@2601:196:8800:6719:1c34:9aa9:1347:4ad7] has quit [Remote host closed the connection] 11:31 -!- mrdata- is now known as mrdata 12:00 -!- helleshin [~talinck@98.29.27.253] has joined ##hplusroadmap 12:02 -!- hehelleshin [~talinck@98.29.27.253] has quit [Ping timeout: 245 seconds] 13:16 -!- purpleshift [purpleshif@gateway/vpn/mullvad/purpleshift] has joined ##hplusroadmap 13:30 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has quit [Ping timeout: 244 seconds] 13:44 < nmz787_> FIB is up and running! https://twitter.com/norklemcdorkle/status/1144707912561860609 13:44 < nmz787_> .tw https://twitter.com/norklemcdorkle/status/1144707912561860609 13:44 < yoleaux> Garage FIB (Seiko SMI3200) is up and running with great performance so far! Thanks @nanographs for the support, and @kanzure for clicking "buy it now" on eBay! Pics of lab (few months old) here: http://diyhpl.us/~nmz787/pdf/smi3200/pics.html https://pbs.twimg.com/media/D-LRxU-U4AACF0W.jpg https://pbs.twimg.com/media/D-LRxU-U0AACHmg.jpg (@norklemcdorkle) 13:50 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 245 seconds] 13:56 -!- spaceangel [~spaceange@ip-62-24-76-6.net.upcbroadband.cz] has quit [Ping timeout: 272 seconds] 13:57 -!- yashgaroth [~ffffffff@cpe-76-176-31-235.san.res.rr.com] has quit [Read error: Connection reset by peer] 14:06 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 14:15 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 258 seconds] 14:37 -!- yashgaroth [~ffffffff@cpe-76-176-31-235.san.res.rr.com] has joined ##hplusroadmap 14:38 -!- mrdata_ [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 14:40 -!- mrdata [~mrdata@unaffiliated/mrdata] has quit [Ping timeout: 245 seconds] 14:50 < docl> nice! 14:54 < docl> I'm thinking of trying to build a PAO laser system using a bluray laser and an array of mlcc capacitors with mirrors mounted on them 14:57 < docl> the mlcc capacitors are just there to act as low cost piezoelectric actuators 14:58 < docl> so depending on the current they receive, the mirror is a different distance from the laser source, which is how we control the phase 15:09 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has joined ##hplusroadmap 15:11 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 15:16 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has quit [Ping timeout: 248 seconds] 15:27 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has quit [Ping timeout: 276 seconds] 15:34 -!- AgenttiX [agenttix@lakka.kapsi.fi] has quit [Ping timeout: 250 seconds] 15:36 -!- mrdata_ [~mrdata@unaffiliated/mrdata] has quit [Ping timeout: 258 seconds] 15:42 -!- hehelleshin [~talinck@98.29.27.253] has joined ##hplusroadmap 15:45 -!- helleshin [~talinck@98.29.27.253] has quit [Ping timeout: 248 seconds] 15:46 -!- mrdata [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 15:56 -!- purpleshift [purpleshif@gateway/vpn/mullvad/purpleshift] has quit [Quit: .] 15:58 -!- LeoTal [~Adium@2001:44b8:4167:bc00:e910:b1bb:8c12:bf1f] has joined ##hplusroadmap 15:58 -!- aeiousomething [~aeiousome@unaffiliated/aeiousomething] has joined ##hplusroadmap 16:06 < fenn> (PAO = phased array optics, in case anyone was wondering) 16:15 < fenn> docl: what sort of performance do you think you can get out of a reasonably sized hand-solderable array? could you do laser etching through a microscope? guide star in upper atmosphere? 16:19 < fenn> i'm thinking you need a large number of elements to make a reasonable approximation of a fresnel pattern, without which you'll get at best a diffuse blob instead of a point 16:49 < docl> that might be the case. I've been thinking of trying it with a few hundred elements to see what the pattern looks like. 16:52 < docl> I found an example of 64x64 grid here at 15:10 https://www.youtube.com/watch?v=H-ZYe2IONOs 16:53 < docl> another thing I might not have thought enough about is thermal noise. the array might not work at normal temperatures. 16:54 < docl> this is a fiber based system where they needed a feedback system to get it to auto calibrate in response to noise https://physics.anu.edu.au/quantum/cgp/research/spacetech/gracefo/optical-phased-array.php 16:56 -!- mrdata- [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 16:56 < docl> Our plan is shown in Figure 3. By fixing a glass screen (a reference flat) in front of the fibres a small amount of light is reflected from each outgoing fibre back into a return fibre. We can then use a powerful technique called heterodyne interferometry to precisely measure the phase of the returning light, which gives us a measurement of the path length of the outgoing fibre. This phase measurement 16:56 < docl> can then be used to adjust the fibre-stretchers until we have exactly the length, and thus the phase, that we want. This solution is complicated by the fact that the return fibre carries reflected light from all the outgoing fibres, and so we need to descramble it in order to determine the lengths of the individual fibres. 17:17 -!- srk [sorki@fedora/sorki] has quit [Quit: ZNC - http://znc.in] 17:24 -!- mrdata [~mrdata@unaffiliated/mrdata] has quit [Ping timeout: 252 seconds] 17:24 -!- mrdata- is now known as mrdata 17:25 < docl> hmm. mlcc are small, around a millimeter, so if we try to do 1 square meter it would have room for a million or so cells. hand soldering wouldn't be reasonable, but a dip soldering jig could be. 17:26 -!- mrdata_ [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 17:28 < docl> then for mirrors, brush on glue and put aluminum foil then cut the foil with xacto knife 17:30 -!- sektor [~sektor@95.87.234.241] has quit [Ping timeout: 245 seconds] 17:33 -!- justanotheruser [justanothe@gateway/vpn/nordvpn/justanotheruser] has joined ##hplusroadmap 17:36 < nmz787_> docl: can you fab mlcc caps easily? I guess I might be able to help with lithography on that. Sounds interesting 17:37 -!- srk [sorki@fedora/sorki] has joined ##hplusroadmap 17:37 < Jenda`> docl: I'd try low-cost China assembly service to solder the MLCC array. The online quote at pcbway.com says that soldering 100000 capacitors costs $884 17:39 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has joined ##hplusroadmap 17:40 < docl> Yeah the china option is definitely something I'd consider. 17:41 < docl> nmz787_: good question, I haven't looked into the manufacturing process on those. but they aren't designed to be piezo, we're just using them that way since they are cheap 17:41 < docl> might make more sense to use the pzt ceramic used in those buzzer disks 17:42 -!- LeoTal [~Adium@2001:44b8:4167:bc00:e910:b1bb:8c12:bf1f] has quit [Quit: Leaving.] 17:44 -!- helleshin [~talinck@98.29.27.253] has joined ##hplusroadmap 17:47 -!- hehelleshin [~talinck@98.29.27.253] has quit [Ping timeout: 268 seconds] 17:50 < kanzure> .tw https://mobile.twitter.com/oshpark/status/1130299267661230080 17:50 < yoleaux> Decapped ATMega still running in an Arduino Uno. Awesome project by @johndmcmaster at #BringAHack https://pbs.twimg.com/media/D6-hLGeU8AAUk-s.jpg (@oshpark) 17:52 -!- LeoTal [~Adium@2001:44b8:4167:bc00:7de6:dbb5:30b:bb0e] has joined ##hplusroadmap 17:53 -!- mrdata__ [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 17:54 -!- mrdata_ [~mrdata@unaffiliated/mrdata] has quit [Ping timeout: 252 seconds] 18:00 -!- mrdata__ [~mrdata@unaffiliated/mrdata] has quit [Ping timeout: 252 seconds] 18:04 -!- mrdata_ [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 18:05 < Jay_Dugger> Good work, nmz787 18:07 < fenn> yeah, fantastic 18:07 < fenn> you now have a useful thing 18:11 < nmz787_> indeed! 18:12 < nmz787_> I think I might even have some scrap silicon around here to look at... I put a U.S. quarter into it last night and it was relatively boring due to the fact it is so huge relative to the field of view (1mm was common, there might have been a 3mm mode that was noisier images) 18:12 < nmz787_> (scrap with failed fabbed stuff on it) 18:16 -!- streety [~streety@li761-24.members.linode.com] has quit [Quit: ZNC 1.6.5 - http://znc.in] 18:19 < docl> freaking amazing... reading and writing with sub micron precision 18:20 < nmz787_> yeah, the reading in my case is destructive 18:20 < nmz787_> I have a SEM though, but it needs work 18:21 < docl> does it use piezo actuators? 18:23 -!- streety [~streety@li761-24.members.linode.com] has joined ##hplusroadmap 18:33 -!- mrdata [~mrdata@unaffiliated/mrdata] has quit [Ping timeout: 245 seconds] 19:17 -!- l_wl [~l_wl@pool-173-66-183-216.washdc.fios.verizon.net] has quit [Remote host closed the connection] 19:18 -!- l_wl [~l_wl@pool-173-66-183-216.washdc.fios.verizon.net] has joined ##hplusroadmap 19:53 -!- mrdata_ is now known as mrdata 19:57 < kanzure> i would assume so, but i haven't looked 20:35 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has quit [Ping timeout: 252 seconds] 20:40 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has joined ##hplusroadmap 21:34 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has quit [Quit: preview] 21:41 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has joined ##hplusroadmap 21:58 -!- priontology [~scionce@66.205.193.168] has joined ##hplusroadmap 21:59 -!- priontology [~scionce@66.205.193.168] has quit [Client Quit] 22:00 -!- priontology [~scionce@66.205.192.112] has joined ##hplusroadmap 22:50 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has quit [Ping timeout: 276 seconds] 22:56 -!- preview [~quassel@2407:7000:8423:b75:5983:c203:baaa:a2a0] has joined ##hplusroadmap 22:57 -!- LeoTal [~Adium@2001:44b8:4167:bc00:7de6:dbb5:30b:bb0e] has quit [Quit: Leaving.] 23:26 -!- Livestradamus [~Livestrad@unaffiliated/livestradamus] has quit [Quit: Livestradamus] 23:28 -!- Livestradamus [~Livestrad@unaffiliated/livestradamus] has joined ##hplusroadmap 23:55 -!- LeoTal [~Adium@2001:44b8:4167:bc00:7de6:dbb5:30b:bb0e] has joined ##hplusroadmap --- Log closed Sat Jun 29 00:00:55 2019