Electronics Forum | Fri Apr 21 12:19:59 EDT 2006 | fastek
A lot has changed since the AP25 was designed. What looks like a bad design today was cutting edge 10-12 years ago.
Electronics Forum | Tue Aug 29 15:53:31 EDT 2006 | pms
We get crappy warped boards all the time. Our DEK (Viking) seems to handle them very well, no issues.
Electronics Forum | Wed Jan 13 13:46:53 EST 2010 | cyber_wolf
Can anyone provide us with some input on these machines? How well do they handle warped boards..changeover..programming..etc..
Electronics Forum | Thu Apr 20 14:24:54 EDT 2006 | pms
Sr.Tech, Don't know about AP25's, we have a DEK. We have problems with some large board sagging in the middle, causing the board to slip under the board stop, but our DEK has the ability to program the board stop anywhere in the Y direction, allowin
Electronics Forum | Mon Mar 16 04:46:25 EST 1998 | Grant Petty
We have just go another batch of PCB's from our loaders, and some of the boards are severely warped. The boards are PCI cards and one of the boards is 9mm out at one end. The PCB is 210mm long and 4 layers. I am wondering if anyone knows what could
Electronics Forum | Mon Mar 16 16:57:59 EST 1998 | Earl Moon
| We have just go another batch of PCB's from our loaders, and some of the boards are severely warped. | The boards are PCI cards and one of the boards is 9mm out at one end. The PCB is 210mm long and 4 layers. | I am wondering if anyone knows what
Electronics Forum | Mon Mar 16 09:07:14 EST 1998 | Justin Medernach
| We have just go another batch of PCB's from our loaders, and some of the boards are severely warped. | The boards are PCI cards and one of the boards is 9mm out at one end. The PCB is 210mm long and 4 layers. | I am wondering if anyone knows what
Electronics Forum | Thu May 19 21:53:07 EDT 2005 | KEN
Is it possible your board is warping and skip plating? Have you run a lev-check? What does your contact patch look like? Do you have ice cikles (spelling???) or solder "flags". IF yes, your flux is consumed or nonexistant. What is your dwell time
Electronics Forum | Mon Feb 02 16:42:03 EST 2004 | davef
Bow & twist for bare boards and panels: IPC-A-610 1.5% for PTH only and 0.75% for SMT. So, what are you doing to these poor boards to make them warp?
Electronics Forum | Tue Apr 29 07:26:38 EDT 2008 | realchunks
Another area to look is on any breakaway. If they did not add copper to breakaway, it can warp your board if long enough. Seen it happen many times.
