[sdiy] Does anyone here use JLCPCB for SMD assembly ?

[Mike Bryant]

Yes.  Just had an email from Hilary Yang at JLCPCB after my original posting saying 

"Don't worry about it !!" 

I think they have 100% customer satisfaction as an achievable goal, they just have to overcome their crappy IT :-)



-----Original Message-----
From: doug at synthark.com [mailto:doug at synthark.com] 
Sent: 27 October 2021 15:38
To: Mike Bryant
Cc: synth-diy at synth-diy.org
Subject: Re: [sdiy] Does anyone here use JLCPCB for SMD assembly ?

I've only seen issues with their part placement visualization (based on PNP file) stacking all of the parts in the center (not even trying for a good placement) or not getting close to the correct location.  
Similarly, support said don't worry about it, an engineer figures it all out before the assembly run.  I haven't had a bad board from them yet.

---
Doug Huseby
http://synthark.com
http://synthark.org


On 2021-10-27 03:43, Mike Bryant via Synth-diy wrote:
> When SMD assembly was a new service at JLCPCB there were obviously 
> teething problems.  For example parts shown as rotated online and so 
> on but the PCBs always came back fine as they spent time fixing 
> everything.
> 
> But it seems like their DFM analysis is getting worse, not better.
> DFM for my latest PCB had pages of errors, many marked 'unknown'.
> Every electrolytic throws a problem, and one particular value of 0805 
> resistor, using the same pad as every other 0805 resistor value, 
> throws up lots of times as 'Soldering area is too small'.
> 
> Talked to their support people this morning and they said they just 
> ignore the DFM analysis and load the components anyway, but this tells 
> me nothing on how to make the PCB more production friendly and hence 
> reliable in mass production.
> 
> Anyone else seeing this ?  Their PCBs are far better than anything one 
> can get in Europe at a reasonable price, and the SMD loading does seem 
> well under control with no failed joints so never need rework, but 
> they do seem to add to the stress of wondering what's going to come 
> back each time.
> 
> Thanks
> 
> Mike
> 
> 
> 
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org