Electronics Forum | Sun Sep 22 02:32:33 EDT 2013 | alexeis
Hi, If your PCB is large, you waste a time. Any picture, you takes, will be with corner distortion. I suggest you to: 1. use AOI (manually or automatically) 2. try simulation of your PCB production before real SMT production process 3. use human FAI
Electronics Forum | Mon Dec 04 18:29:47 EST 2006 | SWAG
Some production problems we've faced: 1) Delamination; 2) Reflow fixture distortion; 3) Obsolete parts; 4) Failure of blower motor bearings in older reflow ovens; 5) Poor toe fillets with miniSOTs on thicker PCB's; 6) Lack of updated component data s
Electronics Forum | Fri Nov 30 09:27:42 EST 2007 | pms
Maybe a silly question, but........... Sometimes we get PCB's in with defective(distorted) fiducials that the production equipment(printer, PnP, etc) does not recognize. It would be great if there was a product out there to replace the defective f
Electronics Forum | Thu Jan 10 03:19:49 EST 2008 | chrispy1963
I have read all the replies here and have yet to see this one which I know works when our fids are HASL and distorted, thus unable to seem uniform enough for the vision systems on our MPM's or MyDatas to see them clearly. Using a stainless steel nee
Electronics Forum | Tue May 13 08:57:19 EDT 2008 | locostpp
It will be rigid, but not as rigid as something weighing 600lb's. We can't afford to cast/machine parts for a low cost machine. But we think have found techniques that can calibrate out any small distortions in the unit. Your comment about a decen
Electronics Forum | Thu Mar 06 12:14:04 EST 2014 | fredcalkins
One thing to be certain on the spring action of your tools is the direction of travel. With the new black tools the tube can seem normal but the slider is retracted instead of extended. This happens when pulling or installing tips. it is a very natu
Electronics Forum | Thu Aug 09 16:24:27 EDT 2018 | ks0707
Hi Thomas, Thank you for your posting and I agree with you that Printing is the most difficult one. BTW, after you ran the one side (let's say Bottom side), my engineer worries about the distortion of flex board because of the thickness. In that ca
Electronics Forum | Mon Jun 24 06:53:03 EDT 2019 | SMTA-David
The Audio for this paid video is distorted. For paid online course I expect at least good quality audio. Also,as a general comment, most of the videos are just a guy reading off slides almost verbatim. Can I save most of the $75.00 USD and read th
Electronics Forum | Thu Jun 03 06:14:38 EDT 2021 | bukas
Yes, most of my fiducials are 1 mm. BUT, you may consider going 1.5mm or even better 2 mm because in my experience PCB manufacturers will NOT check fiducial shape during PCB testing. This goes for fiducials that are placed on panel frame. Fiducilas t
Electronics Forum | Tue Jul 05 07:02:26 EDT 2022 | richardcargill
Possibly, yeah. Or the wrong sized nozzle ( or chipped or blocked ) We have problems occasionally with larger components and vacuum levels. If the component has a makers 'circular void' on the pick up surface then the actual pick coordinates have to
