Electronics Forum | Wed Feb 15 21:18:03 EST 2006 | Spilly McNugglets
It's cumbersome. Also if it catches a part partially after initial set-up, you'll get missprints. We had one and caused about 15% missprints. Once removed and hard pin in place, no missprints. Defeats vacuum board hold down too, from all of it's
Electronics Forum | Sun Mar 12 22:02:40 EST 2006 | Steveo
Personally I think Grid lok is inferior to the new Vacunest system, especially in screen printing. Vacunest is basically a bean bag that conforms to the shape of the PCB and then holds this shape indefinatley under vacuum, until the vacuum is releas
Electronics Forum | Tue Feb 28 10:18:35 EST 2006 | Steve Gregory
I just went through the same problem. We have an inductor that is made with a bundle of 30-strands of Litz wire that is vaccuum coated with varnish, and have the ends of the wire bundles tinned that we have to solder to SMT pads on the board. The ind
Electronics Forum | Thu Feb 23 17:31:33 EST 2006 | russ
What is your budget limit? That is going to be a major factor in what you end up with. We have a machine that is lower cost and it performs lower cost. It works and we always get the job done correctly but we cannnot use "canned programs" on it. i
Electronics Forum | Tue Feb 28 14:32:26 EST 2006 | masrimhd
As I know, the encapsulation effect occurs only with rosin based fluxes. So if you have a PBA soldered using RA Flux, you should either wash it well, or leave it alone and it will be safe. For NC process the story is different because there�s no re
Electronics Forum | Tue Feb 28 16:35:29 EST 2006 | muse95
Did you verify that the new colour of soldermask was RoHS compliant before you switched? I've heard that many aren't, and that switching colours can sometimes mean moving from one that was compliant to one that is not. We internally decided not to
Electronics Forum | Thu Mar 02 05:07:51 EST 2006 | pavel
We have bought an old zevatech 730 in Bosch auction (hello MikeZIG). There seems to be something wrong with the X axis servo, the machine is vibrating when the head is moving fast (in fact the machine is dancing, in the race with washing machine it w
Electronics Forum | Tue Mar 07 10:46:24 EST 2006 | muse95
I have to disagree with you, BillyD. If Craig searches the forum, he will see that the concept of a Pbfree BGA with SnPb paste has been debated many times. You say it is fine. I say it is NOT. There have been several studies done that clearly sho
Electronics Forum | Mon Mar 13 10:45:44 EST 2006 | muse95
The original issue was Co. does not need to go Pbfree, but some BGA's they use are only available Pbfree. They don't want to throw away Pb BGA stock, so some boards might have a combination of both Pb and Pbfree BGAs. The question basically was Shou
Electronics Forum | Thu Mar 09 00:45:57 EST 2006 | kent_peterson
Fastek will get it done with 2 machine and 2 shifts. 2 shifts would need to place 50,000cph. One CP643 with both device tables set could get it done. Having it panelized in 50's, you would need to print 50 panels a hour so get a auto cleaner on the p
