--- Log opened Mon Oct 12 00:00:44 2020 00:15 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 00:17 -!- superkuh [~superkuh@unaffiliated/superkuh] has quit [Ping timeout: 240 seconds] 00:17 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Remote host closed the connection] 00:18 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 00:24 -!- shawwwn [uid6132@gateway/web/irccloud.com/x-emwifyvisqmnklge] has quit [Quit: Connection closed for inactivity] 00:37 -!- darsie [~kvirc@84-113-55-200.cable.dynamic.surfer.at] has joined ##hplusroadmap 00:40 -!- superkuh [~superkuh@unaffiliated/superkuh] has joined ##hplusroadmap 01:11 -!- scolex [4e2d2fe7@ip-78-45-47-231.net.upcbroadband.cz] has joined ##hplusroadmap 01:23 -!- scolex [4e2d2fe7@ip-78-45-47-231.net.upcbroadband.cz] has quit [Remote host closed the connection] 03:29 -!- faceface [~faceface@unaffiliated/faceface] has joined ##hplusroadmap 04:10 -!- yashgaroth [~ffffffff@2601:5c4:c780:6aa0:fdee:86d3:5a42:873e] has joined ##hplusroadmap 05:01 < fenn> lsneff: in my opinion the killer app for DNA origami is self-assembling tiles that carry inorganic circuit components 05:01 < fenn> i saw you were making thin shells which would not work because the DNA is too floppy 05:05 -!- Llamamoe [~Llamagedd@178235185026.dynamic-4-waw-k-2-1-0.vectranet.pl] has joined ##hplusroadmap 05:06 < fenn> my totally selfish request is an easy to use topology optimization plugin for blender with 3D printer constraints like maximum overhang angle 05:06 < fenn> it's not world-changing or anything 05:12 < fenn> possibly world-changing but much harder problem is a 5 axis 3d printing path planner 05:13 < fenn> this lets you make actually smooth curved surfaces everywhere and control the direction of grain 05:13 < fenn> grain is even more important when you can embed fibers 05:14 < fenn> this would be done with something like a robot arm 05:15 < fenn> you could build support scaffolding out in the air and then lay down continuous grain along it 05:26 -!- filipepe [uid362247@gateway/web/irccloud.com/x-zzumvnzwduocsofp] has joined ##hplusroadmap 06:11 < kanzure> lsneff: a senior project explaining why this isn't going to result in manufacturing would also be helpful 06:11 < kanzure> negative results need to be documented 06:29 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Remote host closed the connection] 06:30 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 07:24 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Ping timeout: 256 seconds] 07:25 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 07:29 -!- CryptoDavid [uid14990@gateway/web/irccloud.com/x-llpwsijxqvwxltaw] has joined ##hplusroadmap 07:35 -!- filipepe [uid362247@gateway/web/irccloud.com/x-zzumvnzwduocsofp] has quit [Quit: Connection closed for inactivity] 07:37 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Ping timeout: 260 seconds] 07:37 -!- mauz555 [~mauz555@2a01:e0a:56d:9090:3854:5153:e997:dfee] has joined ##hplusroadmap 07:42 -!- mauz555 [~mauz555@2a01:e0a:56d:9090:3854:5153:e997:dfee] has quit [Client Quit] 08:03 < lsneff> Just to let you all know what's coming down the line, the person I talked to is planning to use dna origami scaffolds to build arbitrary 3d structures made of arbitrary crystalline materials with a voxel size of maybe 30-40 nm. 08:03 < lsneff> I'll definitely look into various 3d printing advancements. 08:05 < lsneff> Honestly, I kind of want to back down and go work on webassembly stuff again, because I know I'm good at that. 08:08 < lsneff> Also, Eric Drexler emailed me this morning, I feel kind of awkward about that. 08:08 < fenn> gratz 08:09 < fenn> "welcome to the long line of people who wrote nanotechnology cad software that went nowhere" 08:10 < lsneff> A very exclusive club 08:25 < kanzure> why not protein scaffolds instead of crystalline material 08:25 < kanzure> i mean protein coating 08:29 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has quit [Ping timeout: 272 seconds] 08:40 < lsneff> to make optical components 08:40 < lsneff> you can make arbitrary optical functions from these voxels 08:57 -!- filipepe [uid362247@gateway/web/irccloud.com/x-hmhglgfigzdezdct] has joined ##hplusroadmap 08:59 < fenn> like optical computers? 09:00 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has joined ##hplusroadmap 09:00 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has quit [Client Quit] 09:04 < lsneff> That's one purpose, yes 09:14 < docl> spiroligomers is another approach (what clasp guy is working on) 09:20 < lsneff> docl: did you get in contact with him? 09:21 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has joined ##hplusroadmap 09:26 < docl> I've said hi in #clisp, but not otherwise 09:29 < archels> fenn: check out this beauty https://www.digchip.com/datasheets/download_datasheet.php?id=1154773&part-number=AEDR-8300-1W2&type=prod 09:30 < archels> also the links on http://fennetic.net/machines/encoders.html are 404ing 09:34 < lsneff> What are you building encoders for? 09:37 < archels> I want to do precise position control of a 3-phase brushless DC motor 09:38 < lsneff> Use a magnetic encoder 09:38 < lsneff> I assume you're familiar with odrive? 09:39 < archels> I have some of those kits, but mounting is difficult as these motors have a hollow shaft 09:39 < archels> the optical wheel would just go around it 09:43 < lsneff> I see 09:43 < srk> lsneff: there are people reporting noise issues using SPI magnetic ones. looks like stmbl has it solved with differential SPI :) 09:44 < lsneff> Oh, yeah I bet there is lots of electromagnetic noise near the motor 09:44 < lsneff> Have you considered using hall effect sensors placed at the base of the motor? 09:51 < srk> I'm using these atm https://wemakethings.net/2014/05/26/rotary-encoder-teardown/ 09:52 < lsneff> I was working on an electric skateboard a while back and was considering sensoring the motors with hall effect sensors but I got side tracked as always 09:52 < srk> lsneff: you mean for sensing motor mag fields? 09:52 < srk> aah, the ones with built in hall effect switches 09:52 < srk> that's cool but not good enough for position control, mostly used for commutation 09:53 < lsneff> You can add your own if put them in the right places, I believe, but it's useful for tracking exactly rotations 09:53 < lsneff> Not exactly position though, so good enough as you say 09:55 < kanzure> the spirologimer stuff looks like a dead end-- the guy is working mainly on compilers or something 09:56 < lsneff> *not good enough, my bad 09:57 < srk> lsneff: I think you can do position control and even FOC with these but it needs observer (rotor position estimator?) 09:57 < srk> no good for low RPM 09:58 < docl> kanzure: he posted this recently https://usercontent.irccloud-cdn.com/file/YuBKaF0H/twister.mov 09:59 < kanzure> oh good 10:00 < docl> and has been bragging on hn recently about using clasp for the molecular modeling stuff https://news.ycombinator.com/threads?id=drmeister 10:15 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 10:33 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 10:33 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Ping timeout: 258 seconds] 10:35 -!- Guest4231 [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Quit: Free ZNC ~ Powered by LunarBNC: https://LunarBNC.net] 10:36 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Excess Flood] 10:37 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 10:41 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 10:43 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 10:45 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Ping timeout: 240 seconds] 10:46 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Client Quit] 10:47 -!- spaceangel [~spaceange@ip-89-177-56-55.net.upcbroadband.cz] has joined ##hplusroadmap 10:48 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 10:49 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Client Quit] 10:50 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 10:50 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Client Quit] 10:52 < juri_> fenn: I'm building a 5 axis 3d printing path planner. 10:52 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 10:52 < juri_> I've been building it all year. it's hard work. 11:09 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 11:09 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Read error: Connection reset by peer] 11:10 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has joined ##hplusroadmap 11:11 -!- HumanG33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Ping timeout: 240 seconds] 11:11 < fenn> archels: ehh i don't want to fix that right now. the old files are all in http://fennetic.net/machines/images/ 11:18 -!- Human_G33k [~HumanG33k@82-64-99-84.subs.proxad.net] has quit [Ping timeout: 272 seconds] 11:18 < fenn> docl: aside from running in a browser or whatever, it looks like early 1990s chemical modeling 11:23 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Quit: Free ZNC ~ Powered by LunarBNC: https://LunarBNC.net] 11:23 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 11:25 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Client Quit] 11:25 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 11:28 < fenn> juri_: what's that called? is it hslice? i don't really even think the word "slicer" fits for what i'm imagining, since successive layer grain directions criss cross like plywood 11:28 < fenn> and they are not flat layers 11:29 < fenn> it's more like composite tape layup 11:29 < fenn> except you're also making the core as you go 11:31 < juri_> fenn: yep. I've started by stripping down a 3d slicing system into a 'true' 2.5D setup. then i re-wrote the internals with projective geometric algebra. 11:32 < fenn> what's 2.5D in this context? 11:32 < juri_> I'm still recovering from that, but that will give me non-planar layeers. 11:33 < fenn> also there's the whole bit where you have to decide on the layer orientations 11:33 < juri_> yeah, i think about that a lot, but haven't cracked it. 11:33 < fenn> a good first pass for this would be specified by a human using a cad program 11:34 < juri_> i write one of those. 11:34 < fenn> i don't remember seeing anything about loads 11:35 < juri_> I'm attempting.. but it's a hard problem. hopefully i can crack it alone.. because the amount of people who can do this in haskell, in projective geometric algebra... yeah. 11:35 < fenn> f-rep does lend itself well to some sort of potential based vector flow paradigm 11:35 < fenn> for telling the computer how to orient the fibers 11:37 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has quit [Ping timeout: 265 seconds] 11:44 < fenn> the cad file encodes a tensor field, and the path planner tries to pack the minimal number of fibers into each region to match that tensor 11:45 < fenn> or the user can specify a set of point loads and let the computer do FEA or something crazy with differential calculus 11:46 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has quit [Quit: Free ZNC ~ Powered by LunarBNC: https://LunarBNC.net] 11:46 -!- nikivi [~nikivi@nikivi.powered.by.lunarbnc.net] has joined ##hplusroadmap 11:58 -!- mrdata [~mrdata@unaffiliated/mrdata] has quit [Read error: Connection reset by peer] 12:02 -!- mrdata [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 12:13 -!- mrdata [~mrdata@unaffiliated/mrdata] has quit [Read error: Connection reset by peer] 12:16 -!- MarkOtaris [mark-otari@wikimedia/Mark-Otaris] has quit [Quit: killed] 12:16 -!- Allure[m] [theallurem@gateway/shell/matrix.org/x-ngnmipyvgswhhfiw] has quit [Quit: killed] 12:23 -!- Allure[m] [theallurem@gateway/shell/matrix.org/x-wtsnjrynkmrbsdgj] has joined ##hplusroadmap 12:26 -!- mrdata [~mrdata@unaffiliated/mrdata] has joined ##hplusroadmap 12:28 < lsneff> https://usercontent.irccloud-cdn.com/file/ZExsDm2T/2020+Optica+Faraon.pdf 12:29 < fenn> what is it 12:29 < lsneff> Multifunctional volumetric meta-optics for color and polarization image sensors 12:29 < lsneff> It’s relevant to the voxel optical functions 12:36 -!- MarkOtaris [mark-otari@wikimedia/Mark-Otaris] has joined ##hplusroadmap 12:48 < Llamamoe> lsneff: What's the applications of it? 12:52 < lsneff> miniaturizing of optical filters for cameras and other applications, plus maybe optical computing 12:53 -!- CryptoDavid [uid14990@gateway/web/irccloud.com/x-llpwsijxqvwxltaw] has quit [Quit: Connection closed for inactivity] 12:57 -!- filipepe [uid362247@gateway/web/irccloud.com/x-hmhglgfigzdezdct] has quit [Quit: Connection closed for inactivity] 13:05 < superkuh> "Shit, everything we try to make is frequency dispersive." "What if it's a feature?" 13:15 -!- sanehatter [~sanehatte@45.83.220.161] has joined ##hplusroadmap 13:40 < lsneff> not my fault these things are barely larger than the wavelength 13:44 -!- darsie [~kvirc@84-113-55-200.cable.dynamic.surfer.at] has quit [Ping timeout: 258 seconds] 14:37 -!- Llamamoe [~Llamagedd@178235185026.dynamic-4-waw-k-2-1-0.vectranet.pl] has quit [Quit: Leaving.] 15:08 -!- spaceangel [~spaceange@ip-89-177-56-55.net.upcbroadband.cz] has quit [Ping timeout: 256 seconds] 15:10 -!- spaceangel [~spaceange@ip-89-177-56-55.net.upcbroadband.cz] has joined ##hplusroadmap 15:17 -!- spaceangel [~spaceange@ip-89-177-56-55.net.upcbroadband.cz] has quit [Remote host closed the connection] 15:42 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has joined ##hplusroadmap 16:12 -!- shawwwn [uid6132@gateway/web/irccloud.com/x-fpmqmxrzvgjgwrqk] has joined ##hplusroadmap 16:38 -!- filipepe [uid362247@gateway/web/irccloud.com/x-xagdswilqgyxrqnq] has joined ##hplusroadmap 17:32 -!- yashgaroth [~ffffffff@2601:5c4:c780:6aa0:fdee:86d3:5a42:873e] has quit [Quit: Leaving] 17:37 -!- L29Ah [~L29Ah@unaffiliated/l29ah] has quit [Ping timeout: 260 seconds] 17:39 -!- L29Ah [~L29Ah@unaffiliated/l29ah] has joined ##hplusroadmap 18:23 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has quit [Ping timeout: 260 seconds] 19:36 -!- justanotheruser [~justanoth@unaffiliated/justanotheruser] has joined ##hplusroadmap 20:27 -!- darsie [~kvirc@84-113-55-200.cable.dynamic.surfer.at] has joined ##hplusroadmap 20:32 -!- shawwwn [uid6132@gateway/web/irccloud.com/x-fpmqmxrzvgjgwrqk] has quit [Quit: Connection closed for inactivity] 20:33 -!- Sir_Alexei [uid348072@gateway/web/irccloud.com/x-zxusxhltcsfuibya] has joined ##hplusroadmap 21:26 -!- squarebear [~square@2605:6000:1804:c1ab:bcea:134b:bb77:bad9] has quit [Remote host closed the connection] 21:26 -!- squarebear [~square@2605:6000:1804:c1ab:ac7b:dfee:eec8:38d3] has joined ##hplusroadmap 21:33 -!- helleshin [~talinck@cpe-174-103-159-2.cinci.res.rr.com] has quit [Ping timeout: 258 seconds] 21:40 -!- Sir_Alexei [uid348072@gateway/web/irccloud.com/x-zxusxhltcsfuibya] has quit [] 21:40 -!- helleshin [~talinck@cpe-174-103-159-2.cinci.res.rr.com] has joined ##hplusroadmap 21:58 -!- filipepe [uid362247@gateway/web/irccloud.com/x-xagdswilqgyxrqnq] has quit [Quit: Connection closed for inactivity] 21:58 -!- squarebear [~square@2605:6000:1804:c1ab:ac7b:dfee:eec8:38d3] has quit [Quit: Leaving] --- Log closed Tue Oct 13 00:00:45 2020