2012-11-14 00:00 rz2k has quit [Ping timeout: 245 seconds] 2012-11-14 00:02 LunaVorax has quit [Remote host closed the connection] 2012-11-14 00:03 rz2k has joined #qi-hardware 2012-11-14 00:29 lekernel_ has quit [Ping timeout: 248 seconds] 2012-11-14 00:38 lekernel_ has joined #qi-hardware 2012-11-14 00:51 kanzure has joined #qi-hardware 2012-11-14 00:51 xiangfu has joined #qi-hardware 2012-11-14 00:56 xiangfu has quit [Ping timeout: 245 seconds] 2012-11-14 01:08 xiangfu has joined #qi-hardware 2012-11-14 01:36 jurting has quit [Ping timeout: 265 seconds] 2012-11-14 01:46 wolfspra1l: some people may be interested in buying atusbs. does sharism.cc sell them ? 2012-11-14 02:08 wpwrak, if he in China mainland: atUSB: http://item.taobao.com/item.htm?spm=a1z10.1.w4.5.NgYcpn&id=15856506896 2012-11-14 02:09 atBen: http://item.taobao.com/item.htm?spm=2013.1.31-2129074574.4.0CLsSV&id=15856474661 2012-11-14 02:19 xiangfu has quit [Quit: Leaving] 2012-11-14 02:30 lekernel_ has quit [Ping timeout: 245 seconds] 2012-11-14 02:38 lekernel_ has joined #qi-hardware 2012-11-14 02:45 wolfspraul has joined #qi-hardware 2012-11-14 02:45 wolfspra1l has quit [Read error: Connection reset by peer] 2012-11-14 03:27 fire_ has joined #qi-hardware 2012-11-14 03:41 lekernel_ has quit [Ping timeout: 245 seconds] 2012-11-14 03:41 lekernel_ has joined #qi-hardware 2012-11-14 03:56 fire_ has quit [Quit: WeeChat 0.3.9] 2012-11-14 03:58 fire_ has joined #qi-hardware 2012-11-14 04:04 DocScrutinizer05 has quit [Disconnected by services] 2012-11-14 04:04 DocScrutinizer05 has joined #qi-hardware 2012-11-14 04:09 fire_ has quit [Quit: WeeChat 0.3.9] 2012-11-14 04:12 fire_ has joined #qi-hardware 2012-11-14 04:33 xiangfu has joined #qi-hardware 2012-11-14 04:33 fire_ has quit [Quit: WeeChat 0.3.9] 2012-11-14 05:20 fire_ has joined #qi-hardware 2012-11-14 05:56 fire_ has quit [Ping timeout: 240 seconds] 2012-11-14 06:11 fire_ has joined #qi-hardware 2012-11-14 06:25 Jay7 has quit [Read error: Connection reset by peer] 2012-11-14 06:46 xiangfu has quit [Ping timeout: 246 seconds] 2012-11-14 06:49 jekhor has joined #qi-hardware 2012-11-14 06:50 emeb has quit [Quit: Leaving.] 2012-11-14 06:54 pcercuei has quit [Quit: dodo] 2012-11-14 06:59 xiangfu has joined #qi-hardware 2012-11-14 07:04 xiangfu has quit [Ping timeout: 255 seconds] 2012-11-14 07:08 Jay7 has joined #qi-hardware 2012-11-14 07:24 Jay7 has quit [Read error: Connection timed out] 2012-11-14 08:01 Jay7 has joined #qi-hardware 2012-11-14 08:04 urandom__ has joined #qi-hardware 2012-11-14 08:56 qi-bot has quit [Ping timeout: 252 seconds] 2012-11-14 08:57 qi-bot has joined #qi-hardware 2012-11-14 08:57 zedstar has quit [Ping timeout: 248 seconds] 2012-11-14 08:58 zedstar has joined #qi-hardware 2012-11-14 08:58 zedstar has quit [Changing host] 2012-11-14 08:58 zedstar has joined #qi-hardware 2012-11-14 09:02 xiangfu has joined #qi-hardware 2012-11-14 09:14 lekernel_ is now known as lekernel 2012-11-14 09:51 kristianpaul has quit [Ping timeout: 260 seconds] 2012-11-14 10:03 fire_ has quit [Quit: WeeChat 0.3.9] 2012-11-14 10:13 xiangfu: heh, thanks :) but i think they're not in china 2012-11-14 10:14 jekhor has quit [Ping timeout: 252 seconds] 2012-11-14 10:14 xiangfu: one question, though: where do you keep the kernel tree for the nanonote openwrt, with atben/atusb ? 2012-11-14 10:23 kristianpaul has joined #qi-hardware 2012-11-14 10:24 wpwrak, http://projects.qi-hardware.com/index.php/p/openwrt-xburst/source/tree/master/target/linux/xburst/patches-3.3/800-WPAN-new-files.patch and http://projects.qi-hardware.com/index.php/p/openwrt-xburst/source/tree/master/target/linux/xburst/patches-3.3/810-WPAN-patches.patch 2012-11-14 10:28 Jay7 has quit [Quit: Conversation terminated] 2012-11-14 10:28 thanks ! 2012-11-14 10:30 Jay7 has joined #qi-hardware 2012-11-14 10:33 wpwrak, checkout http://en.qi-hardware.com/wiki/Mini-slx9, any comments will be great. 2012-11-14 10:33 wpwrak, I already etched 6 boards. I can not take good picture at night. more document on etching tomorrow. 2012-11-14 10:34 (picture at night) they should build more hacker-friendly cameras, wouldn't you agree ? ;-) 2012-11-14 10:36 ah, i see that you're making good progress with the paper. the results look good indeed 2012-11-14 10:36 for the list of papers, if you have product codes for the kodak papers, it would be good to include them. in case someone wants to buy exactly the paper that worked for you. 2012-11-14 10:38 for "Plot KiCAD design out", maybe add the pcbnew command line ? i.e., pcbnew --plot=ps --plot-fill-all-zones --layers=Front --plot-mirror PROJECTNAME.brd 2012-11-14 10:38 (requires our patches, of course) 2012-11-14 10:39 wolfspraul: sharism.cc has now all the atben/atusb boards, correct ? 2012-11-14 10:39 hmm.. any ideas where one could get mylar or kapton film (without glue) .. like 0.1mm thick? 2012-11-14 10:40 or whatever works well for smt stencils.. ive read that mylar and kapton can be lasered... it would be cool to make pcb stencils outselves 2012-11-14 10:44 xiangfu: "oxidized dust" ... you don't have much dust at that point. what the steel wool removes is the oxide layer that builds on the entire surface. 2012-11-14 10:46 xiangfu: (removing the paper) soaking it in water can be very counter-productive. many papers come off cleanly just by pulling. what water does it that it breaks the bond between the layers of the paper and you have to remove each layer separately, which is messy. 2012-11-14 10:48 xiangfu: after paper removal, you still want to clean the board, though, because there can be some residues from whatever the "glossy" stuff is. just holding it under the water tap and rubbing it with a finger usually does the trick. a toothbrush is probably fine, too. 2012-11-14 10:52 xiangfu: (etching) the last process is hydrogen peroxide (H2O2) with muriatic acid (HCl). advantages: works at room temperature, the etchant is a clear solution, the ingredients are very easy to find and cheap, and it's fast. disadvantage: releases small amounts of clorine gas, so you don't want anything metallic near it and good ventilation is important. 2012-11-14 10:55 xiangfu: (removing the toner) you shouldn't need any sand paper. the acetone will get rid of everything. if you have problems getting acetone (its sale is regulated at some places since it's also used for some processes in the production of illegal drugs), you can try paint thinner/remover. pure acetone is better for your health, though. 2012-11-14 10:56 xiangfu: (soldering) 315 C seems pretty high. is that with lead-free solder or leaded solder ? i rarely go above 270 C for components. (i go higher for large objects or for tinning the pcb surface) 2012-11-14 10:57 xiangfu: and flux isn't optional ;-) you can also get flux in pens, which are probably more convenient to handle than a bottle 2012-11-14 10:57 ah, i saw your dispenser. yes, that should do, too 2012-11-14 10:59 what kind of flux do you use ? there are RA (good but sticky), water soluble (not as good as RA but nicer to handle), and no-clean (not very effective in my experience) 2012-11-14 11:00 whatever the flux, you should clean the board afterwards. the chemicals in the flux can be quite conductive (< 100 kOhm/mm) and your circuit may act in very strange ways if there's flux on the board, particularly when still wet. 2012-11-14 11:13 wpwrak, thanks 2012-11-14 11:13 what is 'RA'? 2012-11-14 11:14 there are 3 type flux here. 2012-11-14 11:14 maybe a weird question... .. but did making pcbs get expensive in china recently? 2012-11-14 11:15 soldering paster, no-clean flux. another no-clean flux but the liquid is a little bit red 2012-11-14 11:15 woakas, updating the page. 2012-11-14 11:15 roh, no. for learning and know what kind of board can made at home. what are not. :) 2012-11-14 11:16 i think "RA" is "Resin, Activated" 2012-11-14 11:17 there's also RMA "mildly activated". but so far, i treat them as the same. they're all sticky, which helps a bit with placing components, but your hards get quite dirty. "water soluble" is much friendlier. 2012-11-14 11:18 (flux types) solder paste is not a flux. solder paste is solder ("tin") plus flux. you can also get solder paste with no-clean or water soluble flux. 2012-11-14 11:18 not sure if they also make solder paste with RA/RMA. checking ... 2012-11-14 11:20 no, apparently only water soluble and no-clean. which is fine. RA/RMA would be a mess :) 2012-11-14 11:21 roh: don't forget turn-around times. 2 h vs. 2-3 days. and you can work on weekends/holidays :) 2012-11-14 11:29 xiangfu: the shops are in english? 2012-11-14 11:29 i have no problem to chinesse (actually withs to know more) just a comment.. 2012-11-14 11:29 s/withs/wish/ 2012-11-14 11:29 kristianpaul meant: "i have no problem to chinesse (actually wish to know more) just a comment.." 2012-11-14 11:30 heh.. i see 2012-11-14 11:32 wolfspraul has quit [Quit: leaving] 2012-11-14 11:32 wolfspraul has joined #qi-hardware 2012-11-14 11:34 kristianpaul, no english. 2012-11-14 11:35 no prob, brand actually seems to be more generic than i tought 2012-11-14 11:36 wpwrak, updated page base on your command. also added th H2O2. yes the H2O2 is faster. since the APS/etching box easy to buy. so I try the APS/etching box first. 2012-11-14 11:37 I have 2 type copper board. 0.8mm and 1.6mm. there are different color. 2012-11-14 11:37 I mean the PCB color is different 2012-11-14 11:38 it's nice that you have easy access to etching boxes. i wouldn't even know where to begin to look for them here ... and it would be expensive. luckily, an etching box isn't really needed for all this. i use glass kitchenware, with a plastic cover to prevent evaporation. 2012-11-14 11:39 colors can vary. that doens't necessarily mean anything. 2012-11-14 11:39 however, there's also FR4 and pertinax. FR4 is epoxy-glass. pertinax is paper. the latter is cheap but lousy quality. 2012-11-14 11:40 (paper) with some chemical treatment. so it has a hard surface and it quite stiff. but it's still paper. 2012-11-14 11:41 and burn paper is much more easier. :) 2012-11-14 11:44 oh yes. "FR" is for "Flame Retardant". there's probably a reason why they thought they had to emphasize this :) 2012-11-14 11:58 antoniodariuh_ has joined #qi-hardware 2012-11-14 11:58 antoniodariuh_ has quit [Client Quit] 2012-11-14 12:02 fire_ has joined #qi-hardware 2012-11-14 12:06 there are 2 other issues with 600DPI laser printer. 2012-11-14 12:08 the bga ball footprint is not a circle. 2012-11-14 12:09 same width track on X or Y coordinate give different width after printing. 2012-11-14 12:09 that's a little odd. your printer shouldn't do that :) 2012-11-14 12:10 especially inside bga footprint. 2012-11-14 12:10 wpwrak, checkout this : http://en.qi-hardware.com/wiki/File:Photo_paper.JPG 2012-11-14 12:12 well, if it's a general X/Y distortion. you could get quantization effects, which would be normal, given that 600 dpi = 1.6 mil 2012-11-14 12:13 hmm yes, look a little distoted 2012-11-14 12:13 are the large dimensions okay ? board heights to board width ? 2012-11-14 12:14 large dimensions is okay. 2012-11-14 12:18 jurting has joined #qi-hardware 2012-11-14 12:18 well, then there's probably not much to worry about. some small imperfections are to be expected at 600 dpi. besides, the rest of the process isn't all that precise either 2012-11-14 12:22 jekhor has joined #qi-hardware 2012-11-14 12:22 (600 dpi = 1.6 mil). yes. the minimal track here is 6mil. 5V/GND track is 10mil. 2012-11-14 12:33 so you have to expect best-case +/-13% variations, worst-case (if they use bad rounding) +/-26% 2012-11-14 12:36 hm... 2012-11-14 12:37 the hp 1320 i use for toner transfer has 1200 x 1200 dpi. i guess that's why i never even noticed :) 2012-11-14 12:37 we got a big plotter recently... maybe that can be used for pcb purposes 2012-11-14 12:37 a hp one.. for A0 2012-11-14 12:37 eats hpgl 2012-11-14 12:39 hp1320 can buy 4 HL2140 :) 2012-11-14 12:40 xiangfu: it also has four times the resolution ;-) 2012-11-14 12:40 yes. that is what I mean. :-) 2012-11-14 12:45 wpwrak: does your mill not also eat hpgl? how do you generate it? we played with inkcut (plugin to inkscape) .. the plotter is on a (usb) serial.. maybe one can plot directly to pcb and just etch then 2012-11-14 12:46 plot with etch-resistant ink. cut the transfer step 2012-11-14 12:47 my mill eats some bastardized hpgl 2012-11-14 12:47 ahm. 2012-11-14 12:47 i generally work in gnuplot, when convert to the mill at the very end. machine parameters get inserted at that point. 2012-11-14 12:48 ever put a pen in instead of a millhead? 2012-11-14 12:48 (and my mill isn't the big mean kind, so the set of parameters is relatively benign. no need to worry about bringing seven tons of angry steel to a sudden halt :) 2012-11-14 12:49 no, no pen yet. but pen + spring ought to work just fine 2012-11-14 12:49 just thinking.. ours is a roll-plotter (120cm wide paper,, or with the rotary blade also vinyl)... but these pen plotters are dead cheap on ebay 2012-11-14 12:49 wpwrak, hmm... (Samsung)ML-1676 says "Up to 600 x 600 dpi (1200 dpi effective output)"? 2012-11-14 12:49 i'm not so sure about the ink, though. in my experience, etch-resistent whatever often doesn't 2012-11-14 12:49 wpwrak, what is effective output? 2012-11-14 12:49 so i was thinking of getting another one, flatbed type 2012-11-14 12:49 xiangfu: you'll have to ask samsung marketing about that ;-) 2012-11-14 12:50 .oO(we need more wallboards to store cnc machines on) 2012-11-14 12:50 ;-) 2012-11-14 12:52 or I can print something, then compare. :-) ask samsung will be messy. 2012-11-14 12:53 anyway.. cool project. nice to see it documented so scientific. thats important 2012-11-14 12:55 xiangfu: those "effective" parameters are usually marketing lies. they're basically saying that, in some cases, their 600 dpi printer produces results that look just like those of a real 1200 dpi printer would. but chances are that, if you actually count on having 1200 dpi, you'll just get 600 dpi. 2012-11-14 12:56 wpwrak: I have ML-2010, if you have some test page I can print it and take photo :) 2012-11-14 12:56 yes. that is true. 2012-11-14 12:56 it's similar for, say, oscilloscopes. some have an "effective bandwidth" that's sky-high. but only for perfectly periodic signals. in real life, what's causing the trouble are often the little anomalies, which you'll never find in such a mode. 2012-11-14 12:57 xiangfu: there's your lab rat ;-) 2012-11-14 12:57 n8 2012-11-14 12:58 good night. 2012-11-14 12:58 lindi-, thanks. here is the file: http://downloads.openmobilefree.net/tmp/mini-slx9-ftg256-Front.ps 2012-11-14 12:58 lindi-, just print it to normal paper then take a photo is enough. 2012-11-14 13:01 ML2010: 1,200×600dbi 2012-11-14 13:06 xiangfu: http://lindi.iki.fi/lindi/tmp/IMG_2403.JPG 2012-11-14 13:13 yes the atben/atusb are 'somewhere' :-) but not in the sharism.cc online shop right now, it's too much trouble (and too little demand) to add them there... 2012-11-14 13:13 lindi-, thanks. much better then my printer. 2012-11-14 13:16 lindi-, I will upload your picture to qi wiki. 2012-11-14 13:17 wolfspraul: heh :) i indicated that sales@sharism.cc would be able to help in case anyone wants to buy some of them. does that sound reasonable ? 2012-11-14 13:18 oh sure! 2012-11-14 13:18 (not sure if anyone will actually want any. but since it's been brought up, i'd at least like to send them to the right place.) 2012-11-14 13:18 kewl. thanks :) 2012-11-14 13:20 (printer) interesting difference. there were several traces where i thought you made contact with pads intentionally but not it's clear that you didn't :) 2012-11-14 13:21 s/not/now/ 2012-11-14 13:21 wpwrak meant: "(printer) interesting difference. there were several traces where i thought you made contact with pads intentionally but now it's clear that you didn't :)" 2012-11-14 13:26 wpwrak, lindi- : http://en.qi-hardware.com/wiki/Mini-slx9#Printer_issues 2012-11-14 13:27 the bga ball is square under 600x600 DPI printer. :-( 2012-11-14 13:31 "DO NOT USE photo paper that have glue-stuff at back" ;-))) 2012-11-14 13:31 seems that you'll need a new printer quite soon anyway ;-) 2012-11-14 13:32 the track width difference is quite severe indeed. i think it's safe to say that the HL-2410 is rather unsuitable for any such work. 2012-11-14 13:34 "seems that you'll need a new printer quite soon anyway ;-)" yes. I already do that. then I have to print ~10 paper for remove those glue form printer-inside. good news it's still working. but have some bad smell today. 2012-11-14 13:34 pcercuei has joined #qi-hardware 2012-11-14 13:34 in fact, the width difference that looks like -50%/+100% even slightly exceeds my "worst case". well, there's always rooms for a "worse than worst case" :) 2012-11-14 13:35 at some point in time, the drum will get dirty. there isn't much you can do about that (except for replacing it or the drum/toner assembly) 2012-11-14 13:36 fortunately, even a fairly dirty drum will still not cause a lot of trouble 2012-11-14 13:37 but that issue is why i do my toner transfer on the hp 1320 and keep my much nicer p2055 clean. 2012-11-14 13:38 Hoolxi has joined #qi-hardware 2012-11-14 13:38 wpwrak, I guess the photo paper also leave some stuff somewhere. 2012-11-14 13:39 (glue on back) I can see dirty on even on those outside-small-wheels. 2012-11-14 13:39 then I know the laser printer works at ~160C degree when printing 2012-11-14 13:45 1200x1200DPI printer cost more money. >2000RMB(~350USD) here. 600x600DPI printer ~700RMB(~130USD) 2012-11-14 13:46 this ml-2010 was very cheap 2012-11-14 13:47 that is why they stop production ml-2010. :-) 2012-11-14 13:47 definitely in the 130 USD range 2012-11-14 13:59 fire_ has quit [Quit: WeeChat 0.3.9.1] 2012-11-14 14:37 fire_ has joined #qi-hardware 2012-11-14 14:51 Hoolxi has quit [Remote host closed the connection] 2012-11-14 15:02 xiangfu has quit [Quit: Leaving] 2012-11-14 16:16 erikkugel has joined #qi-hardware 2012-11-14 16:35 emeb has joined #qi-hardware 2012-11-14 16:35 pcercuei has quit [Quit: bbl] 2012-11-14 18:04 pcercuei has joined #qi-hardware 2012-11-14 18:06 fire_ has quit [Read error: Operation timed out] 2012-11-14 18:20 fire_ has joined #qi-hardware 2012-11-14 18:25 jekhor has quit [Ping timeout: 255 seconds] 2012-11-14 19:01 sirdancealota has joined #qi-hardware 2012-11-14 19:19 fire_ has quit [Ping timeout: 240 seconds] 2012-11-14 20:58 pcercuei has quit [Ping timeout: 256 seconds] 2012-11-14 21:15 rzk has joined #qi-hardware 2012-11-14 21:15 sirdancealota has quit [Ping timeout: 245 seconds] 2012-11-14 21:17 rz2k has quit [Ping timeout: 245 seconds] 2012-11-14 21:18 rzk has quit [Client Quit] 2012-11-14 21:40 rzk|3 has joined #qi-hardware 2012-11-14 21:40 rzk|3 is now known as rz2k 2012-11-14 21:48 DocScrutinizer05 has quit [Remote host closed the connection] 2012-11-14 21:53 DocScrutinizer05 has joined #qi-hardware 2012-11-14 21:55 e2580 has joined #qi-hardware 2012-11-14 22:02 erikkugel has quit [Quit: Leaving.] 2012-11-14 22:11 we have launched our open source hardware encrypted storage device on indiegogo who wants to see it 2012-11-14 22:11 this is a bot 2012-11-14 22:11 e2580: help 2012-11-14 22:12 *yawn* 2012-11-14 22:12 help ? 2012-11-14 22:12 e2580: part 2012-11-14 22:13 http://www.indiegogo.com/CryptX2 2012-11-14 22:13 stop spamming or we will. 2012-11-14 22:13 not sure if you are asking for this link or what 2012-11-14 22:16 sirdancealot2a has joined #qi-hardware 2012-11-14 22:30 viric has quit [Remote host closed the connection] 2012-11-14 22:36 guanucoluis has joined #qi-hardware 2012-11-14 22:37 guanucoluis has quit [Remote host closed the connection] 2012-11-14 22:37 guanucoluis has joined #qi-hardware 2012-11-14 22:43 pcercuei has joined #qi-hardware 2012-11-14 22:51 e2580: it is a little odd to pitch a device you can't export to an audience that's largely located in what your country considers enemy territory :) 2012-11-14 22:53 (germany, spain, russia, china, columbia, argentina, to name a few) 2012-11-14 22:53 i didint write the rules, but since i live here i have to follow them 2012-11-14 22:54 i wish i was able to sell worldwide 2012-11-14 22:54 we are giving the info for free worldwide :) 2012-11-14 22:57 kanzure has quit [Read error: Operation timed out] 2012-11-14 22:57 kanzure has joined #qi-hardware 2012-11-14 23:02 LunaVorax has joined #qi-hardware 2012-11-14 23:09 urandom__ has quit [Quit: Konversation terminated!] 2012-11-14 23:17 pity that you couldn't find a solution that has no such restrictions, e.g., with a cpld or such 2012-11-14 23:20 LunaVorax has quit [Ping timeout: 246 seconds] 2012-11-14 23:21 zedstar has quit [Ping timeout: 252 seconds] 2012-11-14 23:21 zedstar has joined #qi-hardware 2012-11-14 23:21 zedstar has quit [Changing host] 2012-11-14 23:21 zedstar has joined #qi-hardware 2012-11-14 23:32 rz2k has quit []