[info] Manufacturing options

[AndreyB]

So far I have used:

http://oshpark.com/- $5 per square inch, free shipping from US. Great options to try tiny modules, not an option for larger boards due to price. No assembly.

http://www.seeedstudio.com/service/ $25 for 10 pieces 10x10cm board + shipping, 5 cents per SMD pin. Hoping to get Frankenstein with some components assembled by them pretty soon. Cons: fairly limited Open parts library of components they would use for assembly.

[AndreyB]

Today I have learned about another Chinese company: http://smart-prototyping.com/Prototyping-Services/Electronic-Prototyping/PCB-Assembling.html

They have pretty good reviews, per SMD pin fee is higher and minimal assembly order is higher, but they have a full 0805 component book and they source parts for an extra fee without a 100pcs minimum. The PCB cost is the same as seeedstudio.

[hasse.69]

Could this be something?
http://www.alibaba.com/product-gs/359248463/FR4_PCB_service_including_make_samples.html

[AndreyB]

Could this be something?
http://www.alibaba.com/product-gs/359248463/FR4_PCB_service_including_make_samples.html

Do you want to download https://svn.code.sf.net/p/rusefi/code/trunk/hardware/rusefi_hardware_history/frankenstein_rev00.10/gerber/gerber.zip unzip remove "assembly instructions" files to reduce confusion, zip it back and ask them for a quote say for 30 pieces?

[hasse.69]

Done that.X2
X3
X4

[hasse.69]

request sent to:
http://www.sunsoartech.com/
http://yhpcb.en.alibaba.com/
http://sky-macau.com/
http://pcb.hqew.net/
If they have additional questions i will ask here.
Hasse.

[kb1gtt]

Seems people are even using e-bay for proto PCB assembly services http://www.ebay.com/itm/PCB-Manufacture-Prototype-Etching-Fabrication-2-Layer-/110819255410?pt=LH_DefaultDomain_0&hash=item19cd57a472

[hasse.69]

That is one of the vendors i´ve sent a request to.

[kb1gtt]

Did we ever hear back from any of the above inquires?

I also recently discovered http://www.elecrow.com/services-c-73/prototyping-service-c-73_120/pcb-assembly-p-366.html which seems to be almost the same as SeeedStudio's service.

[Nobody]

If made in the USA means anything, then http://www.4pcb.com/bare-bones-pcbs/index.html?gclid=CLrUzsjLz74CFYtAMgodTxYA2w been very happy. Know it's not the cheapest place.

[UnaClocker]

http://www.smallbatchassembly.com/ This place is hobbiest friendly, much like OSHPark and OSHStencils, if you need to have a batch of boards with tiny SMD stuff assembled, it might be a viable option.

[kb1gtt]

Just a note, elecrow does PCB assembly.
https://www.elecrow.com/services/pcb-assembly.html

[AndreyB]

Another pretty cheap option https://jlcpcb.com/quote

[AndreyB]

Another pretty cheap option https://jlcpcb.com/quote

Googling "why is jlcpcb so cheap" gives us an interesting discussion https://www.reddit.com/r/PrintedCircuitBoard/comments/9bt5ed/how_come_jlcpcb_be_so_cheap_compared_to_others/ with the OSHPark guy teaching us new words like Tg130, Tg140 vs Tg180.

I am not making a huge secret from the fact that current source of Frankenso PCBs and assembled boards is not exactly perfect - we've definitely seen a couple of PCB defects. And that's while being quite more expensive than jlcpcb.

Actually @ has an assembled board which gave me some magic sparks on first 12v power on.

[Old Grey]

In the past year I have read 3 cases of traces falling off PCBs when a burnt component was changed, but I don't know who the PCB manufacturer was. The 2 layer JLCPCBs that I got recently didn't lose any traces, and I applied a lot of heat fixing the FUs you didn't see, but I don't know about complicated stuff like 4 layer.

[AndreyB]

The assembly shop I am using currently does not have a website?! Maybe they are just a small one person broker I guess/ https://twitter.com/tingriverpcb

[AndreyB]

fairly limited Open parts library of components they would use for assembly.

They have since added parts supplier https://www.seeedstudio.com/opl.html they now have STM32F407VGT6 for instance

[puff]

A new alternative?

[AndreyB]

Wow, really surprised to see digikey joining this market! Great news for us I guess.

[puff]

sort of news from jlcpcb

[AndreyB]

Mck1117 reminds if ordering boards that we know will need fine pitch SMD done by hand, we should get ENIG instead of HASL regardless of jlcpcb or not

[AndreyB]

Once in a while JLCPCB is less amazing

[MHTSOS]

I can't really tell by the pictures but it doesn't look like solder has flowed up the IC leg.

Στάλθηκε από το CLT-L09 μου χρησιμοποιώντας Tapatalk

[AndreyB]

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[AndreyB]

Whole universe of kicad vs jlc drama, I've stumbled over https://github.com/matthewlai/JLCKicadTools hopefully that would be THE answer.

[AndreyB]

Once in a while JLCPCB is less amazing

Feels like JLCPCB assembly quality goes down

I've soldered connectors on four units this week.

One of two Hyundai has inop MAP sensor input
One of two Honda units has inop VVT output

[kb1gtt]

Cnc thru hole machine video below.

[AndreyB]

Well at least this time JLC has email me the pictures and this time they blame me for not mentioning stm32 temperature limitations.

[AndreyB]

Wow.

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