Electronics Forum | Mon Mar 18 11:04:39 EST 2002 | slthomas
At a previous employer we used a pneumatic dental type drill with nice results. The 1/4" hose is much more flexible than a flex drive cable, there's no motor module on the work surface, and the foot pedal for the air a little more elegant than two-h
Electronics Forum | Fri Mar 22 21:31:25 EST 2002 | ianchan
Hi Guys, Anyone have "comments/testimony" on having possible quality level achievements, for AQL=0.1, C=0 ??? Is this a realistic "1st Pass Yield" expectation? how about for OQC submission Lots from production? especially in a high-mix, low-volu
Electronics Forum | Thu Jul 25 21:41:03 EDT 2002 | davef
1.0 X-OUT POLICY 1.1 Each Panel not to contain in excess of X% X'd-Out boards. 1.2 Each X-Out board to be marked in a manner so that Pick & Place equipment will not attempt to insert those boards X'd-Out such as fiducial reference hole for paneliz
Electronics Forum | Thu Aug 15 09:02:04 EDT 2002 | davef
The fine SMTnet Archives have a couple of threads on double side reflow. Bob Willis Technical, Director, SMART Group, produced a Charity Report on the specific process of Double Sided Reflow Assembly. You can get the report from the SMTA [ http://w
Electronics Forum | Tue Apr 26 16:56:23 EDT 2005 | stepheniii
Is anyone using any NanoStar components from TI? It looks like we might be building boards with some soon. We have put down 0201's successfully. But these are a whole other ballgame. They are 0.9mm by 1.4mm with 5 or 6 balls on the bottom. Would thi
Electronics Forum | Sun Sep 24 09:40:33 EDT 2006 | davef
Roland It's nice that Peter is considering improving the site. Things we'd like to see improved on SMTnet.com are: * SEARCH that works effectively. [We can't find postings that we've made. AND we know the key words. So, it must be painful for oth
Electronics Forum | Tue Jan 02 14:15:59 EST 2007 | realchunks
I have a new customer that has a print calling for 2oz. copper finish for top and bottom layers, and 1oz. copper finish for the inner 6 layers. Now, they also have a stack up depicting each layer and thickness. It shows the outer layers of copper b
Electronics Forum | Thu Feb 22 18:28:28 EST 2007 | Cmiller
You could probably put a 1/4" plate of steel over the aluminum and make some shorter magnet pins. I think the factory upgrade was $3500 to $4500. Its hard to justify the cost based on saving maybe 5 minutes a set-up for an operator. But your lines wi
Electronics Forum | Fri May 11 07:38:14 EDT 2007 | tombr
It is possible to vary the length of lead during auto insert. However, it requires software and mechanical adjustments. Universal equipment allows small changes via software program for lead length. To change angle of clinch involves a mechanical a
Electronics Forum | Mon Aug 06 10:03:01 EDT 2007 | slthomas
I agree with jdengler on the rotary table being skewed. You need a couple of dowel pins (1 1/2" long x 1/4" dia., I think) to align that disk. Each idler is held on an eccentric cam and can be adjusted to square up the rotary table by dropping the do
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