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| se6astian | felix_: about the breakout board, do I understand correctly that you would like to get one and that it would help you greatly with development? | 11:33 |
|---|---|---|
| felix_ | yeah, having a breakout board would be quite useful. ist it a 2 or 4 layer board? i'll be ordering pcbs today or tomorrow anyway, so i could also just order some of those as well and 2 layer boards are likely cheaper than shipping a breakout board | 12:12 |
| Bertl | you still need the PCIe connectors and a bunch of pin headers | 12:13 |
| Bertl | but yes, it is a 2 layer board | 12:13 |
| felix_ | ok, then i'll just order 10 of those. is PCIE_dual_breakout_2L_v0.2 the current version? | 12:14 |
| Bertl | yup | 12:15 |
| Bertl | just double check that there are holes for the connector pegs | 12:15 |
| felix_ | and if anyone in DE needs one of the spare breakout boards, i'd ship them one | 12:15 |
| felix_ | yeah, i'll have a look at the generated gerbers | 12:16 |
| felix_ | lol, jlcpcb wants 2$ for all 10 of the breakout boards | 12:22 |
| se6astian | wucher! | 12:22 |
| felix_ | hehe | 12:22 |
| felix_ | i'm still surprised how they manage to get the quality at the price point and still treat their employees reasonably well | 12:23 |
| vup2 | yep jlcpcb has amazingly low prices | 12:24 |
| vup2 | even 4 layer boards are really cheap | 12:24 |
| felix_ | yep, that's why the revision 2 of my qspimux has 4 layers ;) | 12:26 |
| vup2 | too bad they don't go beyond 6 layers | 12:26 |
| vup2 | but still even 6 layer boards are like $10 for 10 boards at 100*100mm | 12:28 |
| vup2 | *$10 per board at 10 boards | 12:28 |
| se6astian | I am just collecting offers for pcbs (oshpark spec equivalent) from austrian manufacturers and they charge between 1000 - 3000€ per panel.... | 12:29 |
| vup2 | yeah i have not found anything remotely close to jlc in terms of price, especially for 4/6 layers | 12:30 |
| se6astian | does jlc provide e-tests as well? | 12:31 |
| felix_ | jlc doesn't offer fr408 though | 12:31 |
| felix_ | it does e-tests | 12:31 |
| vup2 | but they do atleast do controlled impedance at no additional cost | 12:32 |
| se6astian | ah etest is already included: https://support.jlcpcb.com/article/50-e-test | 12:33 |
| tpb | Title: E-Test - JLCPCB: Help & Support (at support.jlcpcb.com) | 12:33 |
| se6astian | not bad | 12:33 |
| felix_ | when i ordered 400 2 layer boards, they only did e-test on a sample, but for a few dollars more they would also have done full e-test on all boards. didn't need that for that project though | 12:33 |
| vup2 | i think for 4 layer they always do full e-test | 12:33 |
| felix_ | yeah, i also remember it like that | 12:34 |
| vup2 | atleast when selecting 4 layer the only option displayed on the website is `full test` | 12:35 |
| se6astian | yes, just tried the quote tool | 12:36 |
| felix_ | only issue i had with boards from them was that on an order maybe 6 years ago one of the 10 pcbs had a slight offset between copper and solder mask and i found out when probing something on the board and accidentially shorting a power rail to ground. the other 9 boards were fine | 12:37 |
| se6astian | insane: 5 full sized panels (similar to the austrian ones): 250€ (including shipping) | 12:37 |
| felix_ | vup2: if you need more layers, a special stackup or hdi stuff http://multech-pcb.com/ might be worth a look | 12:38 |
| tpb | Title: Multech PCB technologies Co.,Ltd (at multech-pcb.com) | 12:38 |
| felix_ | i had a customer ordering boards there, but haven't ordered there myself yet | 12:39 |
| vup2 | wtf 14 layer flex boards | 12:41 |
| vup2 | (thanks will keep it in mind if i ever need more layers) | 12:41 |
| Bertl | when you want to make a floppy main board :) | 12:42 |
| felix_ | on how to order there, it might be a good idea to poke azonenberg in ##openfpga | 12:42 |
| felix_ | he used multech for some designs that needed hdi | 12:43 |
| Bertl | I do not even get a web page ... | 12:43 |
| Bertl | (i.e. it is still loading here ...) | 12:43 |
| vup2 | ah that must have been where i saw them linked a while ago | 12:44 |
| vup2 | yes i think a full flex mainboard is definitely a must :) | 12:44 |
| felix_ | .oO(impedance controlled multilayer rigid-flex board to connect the image sensor to the board) ;) | 12:47 |
| felix_ | and then add some spartan7 in csp package as gearbox to get the full frame rate out of the sensor ;p | 12:48 |
| vup2 | who needs rigid flex, go flex all the way :) | 12:49 |
| felix_ | some camera vendor uses rigid-flex for connecting the camera sensor to the camera; don't remember which one it was, but i saw the board at the wuerth electronic booth at some event | 12:50 |
| felix_ | wuerth is also a good pcb fab, but it's not really on the cheap side | 12:51 |
| vup2 | https://en.wikipedia.org/wiki/Flexible_electronics#/media/File:Olympus_Stylus.jpg | 12:53 |
| tpb | Title: Flexible electronics - Wikipedia (at en.wikipedia.org) | 12:53 |
| se6astian | looks like the latest camera design from the 80ies | 12:54 |
| vup2 | yep | 12:54 |
| Bertl | btw, OSHpark does a flex run now too | 12:55 |
| vup2 | yes saw that | 12:57 |
| felix_ | hmm, for small designs in small runs that might be interesting | 12:58 |
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| felix_ | after using kicad for quite some time, i find the eagle gerber export quite annoying. used the hackvana cam file for eagle 7 in the end... | 21:38 |
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| felix_ | Bertl_oO: is it intended that the pcie-style connectors and the pin headers are on different sides of the pcb?! | 21:49 |
| felix_ | iirc the board in vienna had all connectors on one side | 21:49 |
| Bertl_oO | yeah, no worries, you get the one with connectors on the same side :) | 21:49 |
| Bertl_oO | the design is suitable for both | 21:50 |
| Bertl_oO | connectors are labeled on both sides | 21:50 |
| felix_ | ok, so i can just order the board as-is | 21:50 |
| Bertl_oO | yup | 21:50 |
| Bertl_oO | you want to put the pin headers on the other side when using the TE0714 board | 21:51 |
| Bertl_oO | because it will be too large to access them easily when on the same side | 21:51 |
| felix_ | ah, ok, makes sense | 21:51 |
| * felix_ just ordered 4 different pcb designs :) and also encountered weird bug where i'm not sure if it's a kicad gerber export bug or a jlcpcb gerber viewer bug :/ found an easy workaround though | 22:50 | |
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