2014-02-12 00:09 wolfspra1l has joined #qi-hardware 2014-02-12 00:13 wolfspraul has quit [Ping timeout: 272 seconds] 2014-02-12 00:43 seems like nano for me to jump in and help is good for my soul :) 2014-02-12 01:13 wej_ has quit [Ping timeout: 245 seconds] 2014-02-12 01:49 dos1 has quit [Ping timeout: 250 seconds] 2014-02-12 02:19 xiangfu has joined #qi-hardware 2014-02-12 02:49 dunno how it was sourced. certainly indirectly for the ben production but AVT2 and such may have gotten it directly from ingenic (or, if they went through a distributor then that was for convenience). wolfgang had direct contact to ingenic. 2014-02-12 03:05 was looking around the 'net seems like can't find any distributors carry the chip 2014-02-12 03:10 tried alibaba ? 2014-02-12 03:11 hm? why would anybody use that chip nowadays? 2014-02-12 03:24 wpwrak: not available 2014-02-12 03:24 roh: just curious 2014-02-12 03:25 wpwrak: seems like the model has been discontinued even from ingenic 2014-02-12 03:30 discontinued doesn't mean it's not available ;-) someone mentioned doing a design with one of these chips here, i think it was just yesterday 2014-02-12 03:33 ahh ok 2014-02-12 03:34 is 2 layer PCB design enough for this kind of chip ? 2014-02-12 03:38 not sure but i think it may be possible 2014-02-12 05:05 rz2k has joined #qi-hardware 2014-02-12 05:25 arielenter has joined #qi-hardware 2014-02-12 05:34 seems like bitcoin is having it's own bank now http://www.businessinsider.com.au/aussie-technologists-are-opening-the-worlds-first-bitcoin-based-bank-this-year-2014-2 2014-02-12 05:34 whitequark: fancy a bitcoin bank account :) 2014-02-12 05:35 seems a little redundant :) 2014-02-12 05:35 huh ? redundant ? ... it's another way for govt to make money :) 2014-02-12 05:37 well, the main purposes of a bank are to a) safely store money, b) send it around, and c) facilitate lending. for a) you have your wallet, b) is kinda implicit in bitcoins, so that leaves only c) for a bank to do. 2014-02-12 05:37 okay, also d) currency exchange. but we have that already. 2014-02-12 05:39 this kind of move is expected (to open a bank) as there is money to be made...and soon currency exchange will move a level up in terms of bitcoin trading and that is using assets...as at the moment bitcoin is not linked to any assets...once assets is attach to a bitcoin you will see the explosion of it worldwide 2014-02-12 05:39 and that in turns means $$$$ 2014-02-12 05:43 how to solder one of this baby http://au.element14.com/atmel/atmega88pa-mmh/ic-mcu-8bit-avr-8k-flash-28qfn/dp/1748530 .... the pins can be done with iron but the middle part ? 2014-02-12 05:46 http://babeuf.itch.io/flappy-mouse ;-))) 2014-02-12 05:46 hah, where's dos1 when we need him :) 2014-02-12 05:47 nicksydney: you can often get away with simply not soldering the center pad 2014-02-12 05:47 just make sure you don't run the chip at full power 2014-02-12 05:48 wpwrak: sounds good to me...will try that 2014-02-12 06:15 valhalla has quit [Ping timeout: 245 seconds] 2014-02-12 06:18 valhalla has joined #qi-hardware 2014-02-12 06:30 arielenter has quit [Quit: Leaving.] 2014-02-12 06:39 xiangfu has quit [Ping timeout: 245 seconds] 2014-02-12 06:45 jekhor_ has joined #qi-hardware 2014-02-12 07:10 mth has quit [Ping timeout: 252 seconds] 2014-02-12 07:25 nicksydney: I think there was a bank already... 2014-02-12 07:25 wpwrak: you don't quite get it. "bitcoin bank" means "financial institution with govt-issued license working with bitcoins" 2014-02-12 07:25 basically demonstration of acceptance and legality 2014-02-12 07:25 e.g. bitcoins were outlawed here in russia, because, quote, only terrorists and pedophiles use it 2014-02-12 07:26 so now there are no exchanges in .ru 2014-02-12 07:43 sounds very russian: if you don't know what to do with it, prohibit it until you figure it out 2014-02-12 07:44 it's even worse than in china :( 2014-02-12 07:45 (bank of china doesn't mind people exchanging bitcoins, they just don't want to deal with those who got defrauded) 2014-02-12 07:45 http://www.coindesk.com/btc-china-accepting-bank-deposits/ 2014-02-12 07:49 wej has joined #qi-hardware 2014-02-12 07:52 rz2k has quit [] 2014-02-12 08:33 xiangfu has joined #qi-hardware 2014-02-12 08:41 hmm, my office chair just exploded :-( 2014-02-12 08:42 that does sound russian :p 2014-02-12 08:47 indeed 2014-02-12 09:02 did you use too much nitroglycerin as the lubricant? 2014-02-12 09:04 :| 2014-02-12 09:05 must have been the acetone reacting with the peroxide ... 2014-02-12 09:16 nice .. cc2543 responds, too. unlike the kl26 implementing that debug protocol took something like an hour, not a weekend ... 2014-02-12 09:30 jekhor_ has quit [Ping timeout: 245 seconds] 2014-02-12 09:38 http://i.imgur.com/16ibfAK.jpg 2014-02-12 09:39 <3 new camera 2014-02-12 09:42 what is it ? 2014-02-12 09:43 the camera seems to be much better than the etching ;-) 2014-02-12 09:43 camera? Sony α3000 with 30mm f/3.5 macro lens 2014-02-12 09:43 yes it is. 2014-02-12 09:45 I admit it's a bit of overkill 2014-02-12 09:45 xiangfu has quit [Remote host closed the connection] 2014-02-12 09:47 the photonegative doesn't seem to be that bad: http://i.imgur.com/zrku4lV.jpg 2014-02-12 09:48 xiangfu has joined #qi-hardware 2014-02-12 09:52 hmm, reviews say it's not too fancy for its class. but the pictures you got are good. that's all that counts :) 2014-02-12 09:58 yeah, and the cost was good, too ($320 for camera, $230 for lens) 2014-02-12 10:21 xiangfu has quit [Remote host closed the connection] 2014-02-12 10:24 viric has quit [Ping timeout: 240 seconds] 2014-02-12 10:29 viric has joined #qi-hardware 2014-02-12 10:33 CYB3R has quit [Ping timeout: 245 seconds] 2014-02-12 11:06 viric has quit [Ping timeout: 240 seconds] 2014-02-12 11:06 viric has joined #qi-hardware 2014-02-12 11:13 Guest97992 has quit [Ping timeout: 248 seconds] 2014-02-12 11:14 Coyo has joined #qi-hardware 2014-02-12 11:14 Coyo is now known as Guest26054 2014-02-12 11:23 rz2k has joined #qi-hardware 2014-02-12 11:27 wej has quit [Ping timeout: 252 seconds] 2014-02-12 11:33 wej has joined #qi-hardware 2014-02-12 12:00 wpwrak: interesting read http://octopart.com/blog/archives/2013/11/what-every-hardware-startup-should-know-about-the-electronic-component-landscape 2014-02-12 12:26 jekhor has joined #qi-hardware 2014-02-12 13:25 lekernel has joined #qi-hardware 2014-02-12 14:00 didn't know you can make this kind of pcb http://320volt.com/en/atmega88-mukemmel-led-topu/ 2014-02-12 14:02 there's nothing special about the PCB 2014-02-12 14:02 it's just cut into a funny shape and then assembled 2014-02-12 14:05 so does this mean that the semi round PCB comes like that from the fab ? 2014-02-12 14:06 yea 2014-02-12 14:06 interesting 2014-02-12 14:06 rz2k has quit [] 2014-02-12 14:13 good luck with the mechanical strain on the LEDs, though ;-) 2014-02-12 14:13 well, if you solder after bending it may be okay ... 2014-02-12 14:15 easiest way for now is to try on paper to see if the design works :) 2014-02-12 15:02 jekhor has quit [Read error: Connection reset by peer] 2014-02-12 15:06 there's nothing bent in this ball 2014-02-12 15:07 it's just a number (like ~16) of circle half segments 2014-02-12 15:07 with LEDs soldered to the edge of PCB which got cut to the half-circle shape 2014-02-12 15:10 at least >>LEDs are placed perpendicular to the card pcb soldering LEDs formed a half circle cut out in the form of.<< seems to suggest that and the pictures definitely do as well 2014-02-12 15:11 I wonder which translator machine they used and which original language 2014-02-12 15:12 Mükemmel Led Topu WTF? 2014-02-12 15:12 Turkish? 2014-02-12 15:13 Bro çoklayıp 2014-02-12 15:17 oh, i see. that's much cleaner then. then the sentence "make it possible to use round shape by bending a thin pcb" doesn't make sense, though. 2014-02-12 15:18 google translate says "Tuerkisch erkannt" but refuses to translate 2014-02-12 15:19 the only sense I can make out of that sentence is: they used a bent PCB as a shape template 2014-02-12 15:19 or maybe it just doesn't make any sense at all, just like most of the sentences on that site 2014-02-12 15:22 well, not uncommon. see >>FREE CALLS* to regular phonse<< (SIC!) https://www.voipcheap.com/en/dashboard 2014-02-12 15:23 let's see how your phonse is doing ... ah, close to 1000/3, another "round" number. nice. 2014-02-12 15:24 * whitequark made some more photos of PCBs 2014-02-12 15:24 http://imgur.com/HW7Jo2g,95ckU9b#0 2014-02-12 15:25 wpwrak: do you salivate yet? :] 2014-02-12 15:30 that looks pretty tidy. how did you plate the through-holes ? 2014-02-12 15:31 wpwrak: ehhh no, that's not a PCB I made, that's the one from my CNC machine 2014-02-12 15:31 but I'm quite flattered 2014-02-12 15:31 aaah ! 2014-02-12 15:31 the flux residues definitely give it a DIY-ish look :) 2014-02-12 15:32 yup, I soldered a few unpopulated connectors 2014-02-12 15:32 I was mainly demonstrating photo quality. it definitely does work for my purpose "take a picture and never touch the real thing again" 2014-02-12 15:33 or rather having comprehensive documentation which does not depend on storage of physical objects 2014-02-12 15:34 yeah, that's good to have. btw, here's what my canon sd880 does: http://downloads.qi-hardware.com/people/werner/tmp/sd880/ 2014-02-12 15:35 did those suckers really grind off the chips' writing? 2014-02-12 15:36 DocScrutinizer05: naw, the engraving is just filled in with some kind of grease or shit 2014-02-12 15:36 they must have seen some western companies do it. then they copied it :) 2014-02-12 15:37 GOD, R23 looks pretty drunken 2014-02-12 15:37 maybe you need to experiment with angle and light source. you can usually get very clear images even of stuff that seems unreadable. alas, the angle that works for one chip may not work for the next. but then, digital pictures are cheap ... 2014-02-12 15:39 and WTF is that huge black awry blob upper right? 2014-02-12 15:40 between "LIMIT" and "DIR+DIR-" ? 2014-02-12 15:41 it's a 5V to 5V DC-DC converter 2014-02-12 15:41 apparently for isolation or something 2014-02-12 15:41 covers some SMT components 2014-02-12 15:41 and looks pretty awry 2014-02-12 15:41 DocScrutinizer05: ever seen "2001: A Space Odyssey" ? :) 2014-02-12 15:41 yeah 2014-02-12 15:41 actually U5 does as well 2014-02-12 15:42 porchaso0 has joined #qi-hardware 2014-02-12 15:42 wpwrak: joking? the day it started in cinema 2014-02-12 15:42 ;-) 2014-02-12 15:42 yeah :-P 2014-02-12 15:43 took a while to get the link 2014-02-12 15:43 porchao has quit [Ping timeout: 252 seconds] 2014-02-12 15:43 they must have soldered that PCB by hand 2014-02-12 15:43 and not really good, I may add 2014-02-12 15:44 R20 even looks like it has a short 2014-02-12 15:45 ... it does 2014-02-12 15:45 that even looks intentional 2014-02-12 15:45 i.e., there don't seem to be any traces leading into these pins 2014-02-12 15:45 yep 2014-02-12 15:46 making for a 2*R from lower right to 2nd from right 2014-02-12 15:46 1024R 2014-02-12 15:46 or... 2014-02-12 15:47 512 prolly doesn't mean "Ohm" 2014-02-12 15:47 the placement of the vias is certainly quite creative. looks as if they couldn't quite make up their mind between having pad-on-via or not ... 2014-02-12 15:47 rather 510 Ohm 2014-02-12 15:47 or 5100 2014-02-12 15:47 512 = 5100 Ohm 2014-02-12 15:48 ah, on R23 it's clearer: the two pins there seem to be joined by a trace 2014-02-12 15:48 yeah, they are 2014-02-12 15:48 really? 2014-02-12 15:48 possiblre 2014-02-12 15:49 R23 looks really drunken 2014-02-12 15:49 YUCK 2014-02-12 15:49 rz2k has joined #qi-hardware 2014-02-12 15:51 and that capacitor covering the solder pads of U5 is also butt ugly 2014-02-12 15:53 and look how they tortured those poor Toshiba stepper driver chips 2014-02-12 15:55 whitequark: you might want to use larger washers for the scres holding the Toshibas when you re-assemble the thing 2014-02-12 15:55 screws* 2014-02-12 15:56 unless you want to risk one of them losing a corner 2014-02-12 15:56 they don't have washers 2014-02-12 15:57 yeah, thought as much X-P 2014-02-12 15:57 looks like 2014-02-12 15:57 http://i.imgur.com/7QzCqpA.jpg 2014-02-12 15:58 OUCH!!! 2014-02-12 15:59 and make sure that Elko doesn't short the solder points of U5 eventually 2014-02-12 16:00 right 2014-02-12 16:00 the shirt of black plastic between the Alu pot and the solder points might not suffice for long 2014-02-12 16:02 alu pot? 2014-02-12 16:02 that thing near u5 is an inductor 2014-02-12 16:02 at least I *guess* that's an elko, eh? 2014-02-12 16:02 ooh 2014-02-12 16:03 oh well, then... maybe ferrite isn't conductive 2014-02-12 16:05 now wait, is R19 also OK? 2014-02-12 16:06 I can't 'read' that circuit 2014-02-12 16:07 uhh seems to have another short 2014-02-12 16:08 but the two pins of R19 seem unused anyway 2014-02-12 16:08 I can't 'read' that circuit 2014-02-12 16:08 there's a via under the 3rd pin 2014-02-12 16:08 which is shorted with 4th apparently unused one 2014-02-12 16:09 whoever placed those vias, should be fired 2014-02-12 16:09 shot 2014-02-12 16:10 heh 2014-02-12 16:11 Q1 Q2 look like they already seen a repair 2014-02-12 16:12 jekhor_ has joined #qi-hardware 2014-02-12 16:12 and do you think R29 upper is actually soldered at all? 2014-02-12 16:13 looks good to me 2014-02-12 16:13 yeah it is 2014-02-12 16:14 the dark part isn't shadow - else we'd see the same on the others as well 2014-02-12 16:14 seems that C39 got half of china's annual tin production ;-) 2014-02-12 16:15 ooh there are more like that, you have no idea of China's annual tin production until you looked closely at U5 2014-02-12 16:16 mth has joined #qi-hardware 2014-02-12 16:16 yeah, that's some generous soldering 2014-02-12 16:18 can *you* read these markings? http://i.imgur.com/HiHNwRp.jpg 2014-02-12 16:18 I don't think that's english letters 2014-02-12 16:18 it's some unidentified optocoupler I can't google for the love of my life 2014-02-12 16:19 and that's for sure a funny random collection of the crappiest random vias I ever seen 2014-02-12 16:19 6N37 ? 2014-02-12 16:20 324 2014-02-12 16:20 NFC 2014-02-12 16:21 maybe GL 6N137 2014-02-12 16:22 ooo you're amazing 2014-02-12 16:22 yeah, 6N137 seems to make sense 2014-02-12 16:23 https://www.fairchildsemi.com/ds/6N/6N137.pdf 2014-02-12 16:38 you OK with 6N137? 2014-02-12 16:39 seems to fit 2014-02-12 16:40 yeah 2014-02-12 16:40 I think that's what it is 2014-02-12 16:40 nfc what's GL 2014-02-12 16:40 or even *if* that's GL 2014-02-12 16:41 someone fairchild bought? 2014-02-12 16:41 maybe 2014-02-12 16:41 wait 2014-02-12 16:42 umm nope. thought it's maybe "FS" for Fairchild Sem 2014-02-12 16:42 i 2014-02-12 16:43 could rather be "CS" 2014-02-12 16:43 instead of GL 2014-02-12 16:43 no idea 2014-02-12 16:43 you mean CZ ? 2014-02-12 16:43 very artistic interpretation 2014-02-12 16:44 ooh right, Z 2014-02-12 16:44 hey! .cz 2014-02-12 16:44 LOL 2014-02-12 16:45 oooh 2014-02-12 16:45 .cn maybe ? 2014-02-12 16:46 dos1 has joined #qi-hardware 2014-02-12 16:46 wow, hi dos1 2014-02-12 16:47 hello! 2014-02-12 16:48 i think it's EL. as in www.everlight.com 2014-02-12 16:49 great! 2014-02-12 16:50 http://www.tme.eu/en/Document/ffb956234d776ee32ef72c029f197b59/6N137-e.pdf 2014-02-12 16:51 alas, without meaningful pictures 2014-02-12 16:51 http://www.everlight.com/datasheets/6N137_EL26XX.pdf 2014-02-12 16:52 could actually be a fake. they often mimic the original markings but at lower quality 2014-02-12 16:54 o/ 2014-02-12 16:54 l8r 2014-02-12 17:04 jekhor_ has quit [Ping timeout: 260 seconds] 2014-02-12 17:08 lekernel has quit [Ping timeout: 250 seconds] 2014-02-12 17:14 jekhor has joined #qi-hardware 2014-02-12 17:20 lekernel has joined #qi-hardware 2014-02-12 17:22 uh 2014-02-12 17:22 wtf is an SMD resistor marked 5101 ? 2014-02-12 17:45 ah, just a 5.10k one 2014-02-12 17:54 damn E24 scale :) 2014-02-12 18:05 jekhor has quit [Read error: Operation timed out] 2014-02-12 18:32 okay, I posted some of my notes here: http://lab.whitequark.org/ 2014-02-12 18:32 care to read/comment ? 2014-02-12 18:38 arielenter has joined #qi-hardware 2014-02-12 18:39 you need a before/after video for spindle speed control 2014-02-12 18:40 and you need to fix "Max. velocity X/Y" and "Max. acceleration X/Y". one set is either Z or they're really X/Y but depend on some environmental factor, e.g., operator vodkacity 2014-02-12 18:42 arielenter has quit [Ping timeout: 245 seconds] 2014-02-12 18:45 thanks, fixed 2014-02-12 18:45 (spindle speed control) video ? 2014-02-12 18:48 manual control (turn the knob) vs. program control (make it spin up/down, hopefully producing impressive noises) 2014-02-12 18:49 but I no longer have the knob. the transformer has killed it! 2014-02-12 18:49 http://lab.whitequark.org/notes/2014-02-11/cnc3020t-fixing-power-supply/ you cut pcbs without victim material ? 2014-02-12 18:49 ;-) 2014-02-12 19:04 wpwrak: let's put it this way 2014-02-12 19:04 I'm now excellent at precise Z positioning 2014-02-12 19:05 see, I couldn't find a flat enough piece of wood. so partly I didn't use any victim material and partly I used that pcb you see itself 2014-02-12 19:06 arielenter has joined #qi-hardware 2014-02-12 19:07 bendot27 has joined #qi-hardware 2014-02-12 19:07 bendot27 has left #qi-hardware [#qi-hardware] 2014-02-12 19:11 dos1 has quit [Ping timeout: 260 seconds] 2014-02-12 19:12 dos1 has joined #qi-hardware 2014-02-12 19:27 http://lab.whitequark.org/notes/2014-02-12/parametric-g-code-for-cutting-pcbs/ 2014-02-12 19:30 PCBs, especially of FR2, make nice victim materials. FR4 isn't so nice because you're wasting your endmill 2014-02-12 19:33 yeah, FR4 is quite hard 2014-02-12 19:34 I can't seem to find where I can buy FR2 in .ru 2014-02-12 19:34 none of my usual shopping places stock it, likely because it's ancient and crappy 2014-02-12 19:34 ... well 2014-02-12 19:34 I know this normally doesn't prevent them... 2014-02-12 19:35 ("soldering fat") 2014-02-12 19:38 hrm. did I write that the fan "doesn't mind" being fed 30V input? 2014-02-12 19:38 well, it died. on the good side, it's now much quieter. 2014-02-12 19:39 I actually suspect it was a 12V fan fed 24V 2014-02-12 19:39 rz2k has quit [] 2014-02-12 19:40 hm, no. marked as 24V. I guess this chinese stuff really doesn't tolerate even slight overvoltage. 2014-02-12 19:48 wej has quit [Ping timeout: 260 seconds] 2014-02-12 19:50 wej has joined #qi-hardware 2014-02-12 20:06 jekhor has joined #qi-hardware 2014-02-12 21:00 wej has quit [Ping timeout: 252 seconds] 2014-02-12 21:09 wej has joined #qi-hardware 2014-02-12 21:32 dandon has quit [Quit: .] 2014-02-12 21:34 dandon has joined #qi-hardware 2014-02-12 21:51 dandon has quit [Read error: Connection reset by peer] 2014-02-12 21:51 dandon has joined #qi-hardware 2014-02-12 21:58 arielenter1 has joined #qi-hardware 2014-02-12 21:58 arielenter has quit [Read error: Connection reset by peer] 2014-02-12 22:59 jow_laptop has quit [Ping timeout: 252 seconds] 2014-02-12 23:08 jow_laptop has joined #qi-hardware 2014-02-12 23:26 damn you, xkcd. just this morning the world was nice and normal. i sat in my office chair like the usual sack of wet potatoes and lazily surfed the internet. now my desk is full of plastic boxes propping up screens, keyboard, and mouse and i'm standing there, typing, feeling exceedingly alert all the while. 2014-02-12 23:46 nicksydney has quit [Remote host closed the connection] 2014-02-12 23:47 wolfspra1l has quit [Ping timeout: 260 seconds] 2014-02-12 23:47 nicksydney has joined #qi-hardware 2014-02-12 23:58 lekernel has quit [Quit: Leaving]