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| 00:52.36 | wpwrak | limpkin: yes, i'm here :) |
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| 04:50.32 | limpkin | Seems we're not in the same time zone then aha :) |
| 05:06.30 | DocScrutinizer05 | [2016-05-06 Fri 02:55:13] <tmyklebu_> google chrome *actually is* malware. flash is just shitty. |
| 05:06.32 | DocScrutinizer05 | [2016-05-06 Fri 02:55:50] <tmyklebu_> they advertise that it sends your keystrokes to the mothership and all. |
| 05:09.20 | DocScrutinizer05 | [2016-05-06 Fri 03:00:11] <gci_admin> There is also Vivaldi browser, based on Chromium but without the spying. Or so I have heard. |
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| 07:44.42 | arossdotme | hmm yea the sure mono 300w amp board is odd that they say its 300w into 2ohm when the amp sound be able to do mono 300w 4ohm.... hmm |
| 07:44.49 | arossdotme | sound=should |
| 08:09.03 | arossdotme | looking at the datasheet again it seams the TI IC in the sure 300w board can only do 130w 1%THD into 4ohm in PBLT setup. so i guess its not as capable as i thought it was but the ICâs bigger brother is :D tas5630 |
| 08:09.55 | arossdotme | so ill get the yj tas5630 board unless i get the IRS one... :/ |
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| 16:44.06 | DocScrutinizer05 | sorry for OT: 10.40.66.150 what an IP is this? |
| 16:44.38 | DocScrutinizer05 | it's showing up in my 192.168.4.1/24 network |
| 16:45.03 | DocScrutinizer05 | NFC how it made it there |
| 16:46.33 | DocScrutinizer05 | http://wstaw.org/m/2016/05/06/plasma-desktopHB2219.png |
| 16:47.56 | DocScrutinizer05 | could this be a damn brainfscked windows7 PC that has a *hostname* like that? |
| 16:49.57 | DocScrutinizer05 | MEH!!! 10.0.0.0 10.255.255.255 Class A network 10.x.x.x 10/8 Class A private address block. |
| 16:51.24 | DocScrutinizer05 | now I wish I had a log of my DHCP leases... Well I have but that definitely wasn't a lease |
| 16:56.44 | *** join/#qi-hardware kilae (~chatzilla@catv-162-034.tbwil.ch) |
| 18:44.09 | *** join/#qi-hardware infobot (ibot@rikers.org) |
| 18:44.09 | *** topic/#qi-hardware is Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben/atusb 802.15.4 wireless, anelok and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware |
| 18:44.10 | *** mode/#qi-hardware [+v infobot] by ChanServ |
| 18:44.36 | DocScrutinizer05 | ~(242/170)**2 |
| 18:44.36 | infobot | 2.026435986159 |
| 18:45.44 | DocScrutinizer05 | ~4*(240/200) |
| 18:45.44 | infobot | 4.8 |
| 18:46.06 | DocScrutinizer05 | here you are with your 5A fuse ;-) |
| 18:46.50 | DocScrutinizer05 | add the 16A startup burst to this, N times, and the fuse is gone |
| 18:48.23 | DocScrutinizer05 | also see >>ELECTRICAL COMPONENTS<< |
| 18:50.25 | DocScrutinizer05 | plus you don't even know what's the real VA during startup incl start capacitor |
| 18:51.07 | whitequark | yes that's why i took a slow blow fuse |
| 18:51.19 | DocScrutinizer05 | generally I'd use a 10A T for compressors any time |
| 18:51.45 | whitequark | ceramic or glass? |
| 18:51.58 | whitequark | more generally, not just for this case |
| 18:52.00 | DocScrutinizer05 | err which type of fuse? |
| 18:52.04 | whitequark | yeah |
| 18:52.29 | DocScrutinizer05 | not yeah, which type? |
| 18:52.47 | DocScrutinizer05 | a 5*20mm? |
| 18:52.49 | whitequark | yes |
| 18:52.53 | DocScrutinizer05 | ohmy |
| 18:53.07 | whitequark | ceramic is cheaper and has higher breaking capacity |
| 18:53.11 | whitequark | but I guess can't be viewed? |
| 18:53.15 | whitequark | observed |
| 18:53.15 | DocScrutinizer05 | prolly hard to find a 5*20 for this usecase |
| 18:53.23 | whitequark | huh? plenty of them |
| 18:53.28 | whitequark | http://hken.rs-online.com/web/p/cartridge-fuses/5371004/ http://hken.rs-online.com/web/p/cartridge-fuses/0563592/ |
| 18:54.36 | DocScrutinizer05 | my completely uneducated notiuon is: those fuses are not made to withstand this sort of load |
| 18:54.47 | whitequark | how so? |
| 18:54.56 | DocScrutinizer05 | too small, will get terribly hot |
| 18:55.56 | DocScrutinizer05 | and particularly too fast |
| 18:56.06 | DocScrutinizer05 | because of lack of thermal capacity |
| 18:57.00 | whitequark | the power entry module I use is rated at 10A as well... |
| 18:57.02 | whitequark | http://www.mouser.hk/ProductDetail/Bulgin/BZH01-Z0000-02/?qs=TobE%2fWCMdlw%252bQ2v7k%2fNv5w%3d%3d |
| 18:57.15 | DocScrutinizer05 | T here means maybe a few 100ms |
| 18:57.25 | whitequark | that should be adequate for motor startup |
| 18:57.31 | DocScrutinizer05 | no, isn't |
| 18:57.39 | DocScrutinizer05 | not really |
| 18:57.57 | DocScrutinizer05 | might be >1s |
| 18:59.04 | DocScrutinizer05 | anyway the startup bursts are >10A most probably and thus age the fuse |
| 18:59.14 | DocScrutinizer05 | eventually it will just give up |
| 19:00.14 | DocScrutinizer05 | use a 16A if you can get. The device is supposed to have a built in protector circuit anyway |
| 19:00.32 | DocScrutinizer05 | see !OVERLOAD" |
| 19:00.39 | DocScrutinizer05 | s/!/"/ |
| 19:00.39 | qi-bot | DocScrutinizer05 meant: "see "OVERLOAD"" |
| 19:00.53 | whitequark | yes, it does |
| 19:01.01 | whitequark | the fuse is to catch failures elsehwere |
| 19:01.08 | whitequark | it also has a pump, a fan, a control box... |
| 19:01.25 | DocScrutinizer05 | Protector MRT20APK Current (A) 13.2 |
| 19:01.45 | whitequark | also I would rather catch a failure early than wait 5+ minutes until the protector trips |
| 19:02.02 | DocScrutinizer05 | your fuse is supposed to not blow before the protector engages |
| 19:02.09 | whitequark | why? |
| 19:02.31 | whitequark | also, hm |
| 19:02.32 | DocScrutinizer05 | because you don't want to change it every other day? |
| 19:02.35 | whitequark | that section is rather confusing |
| 19:03.00 | whitequark | the "protector" is a bimetallic plate that measures the temperature of the compressor casing |
| 19:03.29 | DocScrutinizer05 | it also is a heater in itself |
| 19:03.42 | whitequark | oh right |
| 19:03.45 | DocScrutinizer05 | see the resistor in the circuit diagram symbol |
| 19:04.24 | DocScrutinizer05 | so it's basically a fuse |
| 19:05.17 | DocScrutinizer05 | and it's set up in a way so it only triggers when the compressor suffers overload for whatever reasons. AIUI it does so at nominally 13.2A |
| 19:05.27 | whitequark | well, there are two actions |
| 19:05.36 | whitequark | it also watches for overheat of compressor without overcurrent |
| 19:05.52 | whitequark | if there is no cooling of freon then the compressor can pump but get hotter and hotter |
| 19:05.55 | whitequark | e.g. if the fan died |
| 19:05.55 | DocScrutinizer05 | yes, Iknow those fridge compressor circuits |
| 19:06.21 | DocScrutinizer05 | most usual overheating reason is repeated starts |
| 19:07.20 | whitequark | hmmm |
| 19:07.33 | DocScrutinizer05 | those compressors are not made to get started more than once every 5 minutes |
| 19:07.52 | whitequark | this chiller i designed doesn't appear to suffer much from repeated starts, i tried running it with hysteresis of 1°C |
| 19:08.25 | whitequark | and it doesn't even get hot if the duty cycle is not high |
| 19:08.27 | DocScrutinizer05 | I just can report what I've seen in hundreds of fridges |
| 19:08.37 | whitequark | yeah, I believe you about fridges, I've read that too |
| 19:08.46 | whitequark | I am wondering what is the exact difference |
| 19:08.51 | DocScrutinizer05 | I've seen it |
| 19:09.09 | whitequark | it's not the compressor itself but rather something else about the freon circuit, I think |
| 19:09.24 | whitequark | hang on |
| 19:09.49 | whitequark | I remember now what I read about repeated starts, the core of the issue was not repeated start itself, rather repeated start was a symptom |
| 19:09.55 | DocScrutinizer05 | try to start your fridge 4 times in one minute, it will go into chillout mode |
| 19:10.09 | whitequark | overheat, protector trips, cools down, turns on, overheat... |
| 19:10.43 | whitequark | then at some point it fails because it's not made to be that hot that long |
| 19:10.52 | whitequark | re chillout mode: isn't that just the PTC starter? |
| 19:11.01 | DocScrutinizer05 | seen the effect I mentioned, a several dozen times |
| 19:11.22 | DocScrutinizer05 | no, that's the overload protection afaik |
| 19:11.42 | whitequark | so let's try this, i'll start this thing 20 times in 1.5 minutes |
| 19:11.46 | whitequark | is that enough? |
| 19:12.01 | whitequark | i'm certain enough that repeated starts themselves aren't the issue that i don't worry about this killing my chiller |
| 19:12.06 | DocScrutinizer05 | enough for your 5A fuse? ;-) for sure |
| 19:12.19 | whitequark | yeah, with some higher rated fuse. |
| 19:14.36 | DocScrutinizer05 | look, a fuse with 10A is sort of warranted to stay intact with 10A, but the other characteristics vary massively with type of fuse. A simple household fuse 10A T may survive 20A for a 15 minutes |
| 19:14.55 | DocScrutinizer05 | a 20*5mm will not survive for one minute |
| 19:16.08 | DocScrutinizer05 | prolly not for 10s |
| 19:16.29 | whitequark | ok so I started it about 50 times as fast as it would run, running it less than for 1s every time |
| 19:16.35 | whitequark | actually the 5A fuse survived it all |
| 19:16.55 | whitequark | this is sand-filled ceramic so I think it has a higher effective capacity because of all the sand dissipating the heat |
| 19:17.17 | DocScrutinizer05 | get datasheets if you want to know for sure |
| 19:17.23 | whitequark | and no the compressor is barely warm |
| 19:18.19 | DocScrutinizer05 | *shrug* |
| 19:18.40 | DocScrutinizer05 | I got no more experienced anecdotes to contribute |
| 19:19.03 | whitequark | ohhhh http://docs-asia.electrocomponents.com/webdocs/135f/0900766b8135f371.pdf |
| 19:19.42 | whitequark | opening time 60 Minutes minimum |
| 19:19.52 | whitequark | for 150% |
| 19:20.43 | whitequark | yea looks like these ceramic cartridge fuses can withstand a lot of abuse before they blow |
| 19:20.52 | whitequark | i'll go with 10A T |
| 19:20.53 | DocScrutinizer05 | hmm? |
| 19:21.47 | DocScrutinizer05 | seems like the 1AT blows in 0.3s with 3A |
| 19:23.01 | whitequark | ywah |
| 19:23.02 | DocScrutinizer05 | now take your compressor that's possibly drawing 16A during startup, and a 5AT fuse |
| 19:23.22 | DocScrutinizer05 | that's exactly what I meant |
| 19:23.29 | whitequark | .75s min 80s max |
| 19:23.32 | DocScrutinizer05 | T is not always like T |
| 19:23.35 | whitequark | but that's for continuous 10A |
| 19:23.37 | whitequark | er 5A |
| 19:23.45 | whitequark | er 16A over 5A fuse |
| 19:27.01 | DocScrutinizer05 | I looked at the diagram |
| 19:27.51 | DocScrutinizer05 | you should go for a 15AT |
| 19:28.25 | DocScrutinizer05 | good for short protection, leave the rest to the OVERLOAD protector component |
| 19:29.30 | DocScrutinizer05 | when you have other stuff as well which you want to protect, you rather should use a dedicated fuse for that other stuff |
| 19:31.01 | DocScrutinizer05 | your 50 starts test is maybe not very relevant since the fuse didn't even heat up from nominal current |
| 19:32.12 | DocScrutinizer05 | wpwrak: a user asked about anelok |
| 19:41.02 | DocScrutinizer05 | whitequark: >>.75s min 80s max 16A over 5A fuse<< yep, maybe, but not repeatedly, this is strictly oneshot |
| 19:41.17 | DocScrutinizer05 | fuse will age and wear out |
| 19:41.45 | DocScrutinizer05 | it stores up each overcurrent |
| 19:41.54 | DocScrutinizer05 | eventually it breaks |
| 19:42.29 | DocScrutinizer05 | particularly those flimsy 20*5 ones |
| 19:48.46 | whitequark | DocScrutinizer05: yes hence i go for 10AT |
| 19:49.08 | DocScrutinizer05 | might work, buit why not go for 16A ? |
| 19:49.09 | whitequark | where it's *supposed* to withstand that 16A overshoot |
| 19:49.30 | whitequark | because the power entry module is rated for 10A max |
| 19:49.53 | whitequark | I don't like the idea of using a 16AT fuse in something rated for 10A |
| 19:49.54 | DocScrutinizer05 | what is this power entry module? |
| 19:50.06 | whitequark | http://www.mouser.hk/ProductDetail/Bulgin/BZH01-Z0000-02/?qs=TobE%2fWCMdlw%252bQ2v7k%2fNv5w%3d%3d |
| 19:50.21 | whitequark | http://www.mouser.com/ds/2/57/Polysnap-2010-4034.pdf |
| 19:51.16 | DocScrutinizer05 | hmm ok, makes sense |
| 19:53.17 | DocScrutinizer05 | whether it makes sense to use a 10A rated power module for a compressor rated 13.2A overcurrent protection, is another question |
| 19:54.04 | DocScrutinizer05 | can't you use a larger fuse, like 10*30mm or whatever? |
| 19:54.25 | DocScrutinizer05 | prolly integrated into the power module, eh? |
| 19:54.28 | whitequark | yep |
| 19:54.42 | whitequark | that was like half the point |
| 19:54.59 | DocScrutinizer05 | ideally use a softstart circuit |
| 19:57.23 | DocScrutinizer05 | I designed a really oldschool "russian design" softstart for a cinema projector 1600W Xenon transformer/rectifier: relay coil in parallel to the consumer (transformer), a 20 Ohm series resistor that gets shorted by the relay contact |
| 19:57.52 | DocScrutinizer05 | the friggin transforme was a quarter ton |
| 19:58.08 | DocScrutinizer05 | literally |
| 19:58.18 | whitequark | 250kg for 1600W? |
| 19:58.22 | whitequark | that seems super inefficient |
| 19:58.24 | DocScrutinizer05 | yep |
| 19:58.58 | DocScrutinizer05 | it had a monster DC choke for smoothing the current |
| 19:59.12 | DocScrutinizer05 | no significan capacitors |
| 19:59.39 | whitequark | seems like stupid wasteful design |
| 19:59.46 | DocScrutinizer05 | plus the whole thing was adjustable |
| 19:59.57 | whitequark | oh like a variac? |
| 19:59.59 | DocScrutinizer05 | Selen rectifiers |
| 20:00.07 | DocScrutinizer05 | made in the 1930s |
| 20:00.24 | DocScrutinizer05 | yes |
| 20:00.33 | whitequark | oh 1930s that explains it |
| 20:00.56 | DocScrutinizer05 | nah, nowadays that's a 5kg SPSU |
| 20:01.30 | DocScrutinizer05 | that thing was a tank |
| 20:01.38 | DocScrutinizer05 | 300kg |
| 20:02.06 | DocScrutinizer05 | 90*60*50cm |
| 20:04.07 | *** join/#qi-hardware wildlander (~wild@unaffiliated/wildlander) |
| 20:04.23 | DocScrutinizer05 | this sort of technical level: http://www.fernsehmuseum.info/index.php?eID=tx_cms_showpic&file=uploads%2Fpics%2FVorfuehrraum-ErnemannX-werkfoto.jpg&width=1280m&height=1024m&bodyTag=%3Cbody%20style%3D%22margin%3A0%3B%20background%3A%23fff%3B%22%3E&wrap=%3Ca%20href%3D%22javascript%3Aclose%28%29%3B%22%3E%20%7C%20%3C%2Fa%3E&md5=0bed2a1c6083e190964f0523255f09bf |
| 20:04.25 | eintopf | hi |
| 20:07.14 | DocScrutinizer05 | http://www.fernsehmuseum.info/index.php?eID=tx_cms_showpic&file=uploads%2Fpics%2FVorfuehrraum-ErnemannX-4kanal-uniphon-verstarker.jpg&width=1280m&height=1024m&bodyTag=%3Cbody%20style%3D%22margin%3A0%3B%20background%3A%23fff%3B%22%3E&wrap=%3Ca%20href%3D%22javascript%3Aclose%28%29%3B%22%3E%20%7C%20%3C%2Fa%3E&md5=51ebfe827bcfdb142580e869fcd8db9c you see the black lamp current adjustment knobleft side at bottom end of the projector, it |
| 20:07.16 | DocScrutinizer05 | adjusted the DC current that controlled the https://en.wikipedia.org/wiki/Transductor |
| 20:08.26 | whitequark | even without switchng you don't need that much |
| 20:08.27 | DocScrutinizer05 | hi eintopf |
| 20:08.56 | *** join/#qi-hardware wolfspraul (~wolfsprau@bobbin.q-ag.de) |
| 20:09.14 | whitequark | hah, a magnetic amplifier |
| 20:09.26 | whitequark | that's truly ancient tech |
| 20:15.12 | DocScrutinizer05 | this was the lamp: http://www.kinobauer.de/anleitungen/BL9X_manual.pdf I doubt I could find docs for the transformer/rectifier/regulator |
| 20:16.53 | DocScrutinizer05 | I guess the xenon was even just 800W, no 1600 |
| 20:18.27 | DocScrutinizer05 | 40..70A * ~25V |
| 20:19.49 | wpwrak | limpkin: it's very slowly crawling forward. i now have the next hw design mostly finished (still needs a bit more work on CAD, and then the layout) |
| 20:20.38 | limpkin | great! last time i tried to access the website it was offline or had some problems though |
| 20:21.00 | limpkin | are you alone working on it? |
| 20:21.12 | wpwrak | limpkin: with all that, i think it's time to try to a crowdfunding campaign. that projects needs proper funding to be able to speed up, so that'll be critical. |
| 20:21.47 | wpwrak | oh, right ... lemme put it back into service ... it'll spit out a complaint about hte certificate but it'll work |
| 20:21.49 | limpkin | sending you a pm |
| 20:24.11 | wpwrak | so far i do most of the work, yes. some biz side discussions with dave ball (but we haven't created a company just yet), discussions on the qi-hw list with various members, and a few people have contributed a bit of code, but i'd say it's something like 98% me so far. that will have to change, too :) |
| 20:25.31 | limpkin | congrats |
| 20:26.02 | DocScrutinizer05 | krhrhr, good luck with changing that |
| 20:26.43 | DocScrutinizer05 | whitequark: http://www.osram.com/appsinfo/pdc/pdf.do?cid=GPS01_1028548&mpid=ZMP_1200637&vid=PP_EUROPE_Europe_eCat&lid=EN |
| 20:27.58 | whitequark | huh still mfgd? |
| 20:28.11 | DocScrutinizer05 | yep |
| 20:29.05 | DocScrutinizer05 | I guess for several 100 bucks per lamp they will continue to do so until some regulations about radioactive materials forbid |
| 20:29.51 | DocScrutinizer05 | (the wolfram electrodes are doted with some radioactive stuff to facilitate igniting the arc) |
| 20:30.28 | whitequark | thoriated? |
| 20:30.45 | whitequark | thorium is an alpha emitter so that's actually ok |
| 20:31.06 | whitequark | welding electrodes made from thoriated tungsten are not just still sold, in HK I couldn'd find any other ones (eg lanthaated) |
| 20:31.23 | whitequark | and that's ok as long as you don't make them into fine dust |
| 20:31.37 | whitequark | the problem with welding electrodes is that before welding, you are supposed to grind them, and wel... |
| 20:32.11 | whitequark | and that's pretty stupid too because all modern TIG comes with HF starter, don't need no radioactivity for that |
| 20:32.42 | whitequark | I think thorium in these welding electrodes was more for its refractory properties than arc starting as well |
| 20:33.28 | DocScrutinizer05 | dunno |
| 20:35.12 | DocScrutinizer05 | it was quite impressive which protective wear you needed to handle those lamps. changing them you looked like a bomb technician |
| 20:35.24 | DocScrutinizer05 | because of the gas pressure |
| 20:36.10 | DocScrutinizer05 | whe a lamp went *boom* when hot, it regularly killed the reflector made of 1cm thick glas which was like 20cm away from the lamp |
| 20:38.09 | whitequark | well it pretty much is a bomb |
| 20:38.32 | DocScrutinizer05 | damn, ding doesn't know "Quarzglass" |
| 20:39.07 | DocScrutinizer05 | yeah, even when cold it seems that fused quartz under 3 atmospheres pressure is not exactly healthy |
| 20:39.51 | whitequark | fused quartz is a pretty good material to work with. very low coeff of expansion, and rather resistant overall |
| 20:39.59 | whitequark | but as any other glass it'll fragment |
| 20:40.08 | DocScrutinizer05 | yeah, but when it breaks... |
| 20:40.26 | DocScrutinizer05 | exactly |
| 20:40.47 | whitequark | i had an idea for a fused quartz dinner set |
| 20:40.50 | DocScrutinizer05 | and when hot those lamps have iir 20 or 30 Atm pressure |
| 20:41.08 | whitequark | instead of dishwashing run it through an oxypropane flame |
| 20:41.16 | DocScrutinizer05 | hehe |
| 20:41.19 | DocScrutinizer05 | nice idea |
| 20:41.42 | whitequark | have you *seen* how much off the shelf fused quartz costs? |
| 20:41.49 | whitequark | and custom is going to run a small fortune |
| 20:42.02 | DocScrutinizer05 | sure |
| 20:42.04 | whitequark | i actually bought a teacup (actually crucible used as a teacup) from fused quartz |
| 20:42.11 | whitequark | 100ml $60 I think |
| 20:42.21 | DocScrutinizer05 | :nod: |
| 20:42.26 | DocScrutinizer05 | sounds about right |
| 20:42.35 | whitequark | might still consider doing it if i find a vendor, hehe |
| 20:43.15 | whitequark | but that sounds like custom mold... $$$ even in china |
| 20:43.15 | DocScrutinizer05 | the problem will be: it's too fragile |
| 20:43.15 | whitequark | it's not very fragile |
| 20:43.22 | whitequark | I dropped it a bunch of times and I'm 80% sure regular glass would break before that |
| 20:43.24 | DocScrutinizer05 | let it drop and then tell me again ;-) |
| 20:43.32 | DocScrutinizer05 | ooh? |
| 20:43.47 | whitequark | like I dropped it from ~50cm into the metal sink and it actually *bounced* |
| 20:43.56 | DocScrutinizer05 | wow |
| 20:45.13 | whitequark | would've defnitely shattered if the sink was ceramic |
| 20:45.31 | whitequark | stone even? |
| 20:45.48 | DocScrutinizer05 | yeah, I think it's quite strong but zilch elastic |
| 20:46.13 | whitequark | idea: mill a dinner set from a silicon monocrystal |
| 20:46.38 | DocScrutinizer05 | uiuiuiiiuiiiiuiiii |
| 20:47.38 | whitequark | same problem really, extremely strong but cannot absorb impact energy |
| 20:47.40 | DocScrutinizer05 | I had the useless endpieces of a silicon monocrystal |
| 20:47.43 | whitequark | and it has to go somewhere |
| 20:47.45 | whitequark | oooh |
| 20:48.06 | whitequark | I actually hope to have a czochralski setup in maybe a year |
| 20:48.13 | DocScrutinizer05 | maybe 3cm diameter on the cut side |
| 20:48.18 | whitequark | it *could* be used to grow Si although thats not what i need it for |
| 20:48.24 | DocScrutinizer05 | wtf wrong with apt? |
| 20:48.34 | DocScrutinizer05 | ~die |
| 20:50.24 | *** join/#qi-hardware infobot (ibot@rikers.org) |
| 20:50.24 | *** topic/#qi-hardware is Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben/atusb 802.15.4 wireless, anelok and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware |
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| 20:50.29 | whitequark | it's actually surprisingly simple to make |
| 20:50.44 | whitequark | and not even that expensive, just 3-4k for the diameter above |
| 20:50.58 | whitequark | .... if you know the right shop in russia, of course |
| 20:52.46 | DocScrutinizer05 | hmm, looks like it's not *that* trivial to build |
| 20:53.19 | whitequark | it's not trivial or even very simple at all, it's just surprisingly simple compared to *expectations* |
| 20:53.34 | whitequark | that is i have not really considered it manageable for 1 person with a modest salary but it is |
| 20:55.33 | DocScrutinizer05 | hmm, silicon melting point 1400°C, OK |
| 20:56.05 | DocScrutinizer05 | not as bad as I thought |
| 20:56.32 | whitequark | apart from that I'm getting a furnace capable of 1800°C. I want to play with brazing in inert atmosphere, custom ceramics, stuff like that |
| 20:56.33 | DocScrutinizer05 | whatever that means: http://scidre.de/index.php?id=81 |
| 20:56.43 | whitequark | and I need it anyway to prepare the slug |
| 20:57.06 | whitequark | the batch? |
| 20:57.08 | whitequark | yeah |
| 20:58.00 | whitequark | wow, that one is seriously impressive |
| 20:58.15 | whitequark | I don't want to know how much it costs |
| 20:58.44 | whitequark | nevermind that it doesn't really exist... |
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