Electronics Forum | Tue Dec 07 14:21:41 EST 1999 | Brian W.
In my experience, the most commonly accepted theory is that 100% inspection is only 80% effective AT BEST. That means that if your inspoectors are happy, noy outside concerns, well-rested, etc, they will catch 80% of the defects. This number goes d
Electronics Forum | Wed Dec 08 02:07:25 EST 1999 | Scott Cook
Tim, What Brian writes is all true. However, let em put it into a sales / marketing perspective..... The REAL issue in your situation is: Who is responsible for the failures which WILL result in shipping untested product? Typically, your customer
Electronics Forum | Wed Nov 29 11:56:10 EST 2006 | CK the Flip
For the better part of my career, I've battled with ICT guys on so-called "flux residues" on their test probes, and this was when using NO-CLEAN, 2% to 5% solids tops, flux. People don't understand that ICT probe maintenance is an inherent part of
Electronics Forum | Wed Nov 16 12:54:04 EST 2011 | mosborne1
Tim, Bob is the C series master so try this.
Electronics Forum | Fri Nov 18 08:35:20 EST 2011 | bobpan
try this..... I think there is a coupling for the theta motor....make sure both set screws are tight.....maybe the theta is slipping. Make sure there are no bright lights shining into the machine....maybe even throw a dark cover over the top and try
Electronics Forum | Wed Nov 16 17:30:29 EST 2011 | olddog
Hi again Bobpan, One thing I noticed when I pulled the z-rod to inspect it was that it was "bearly" finger tight. When I replaced it, I snugged it a bit better (not overtightening). After resuming setting up additioanl placements (this board requires
Electronics Forum | Wed Nov 16 05:12:36 EST 2011 | bobpan
A couple of things i would try: 1. Does function 30 give you a nozzle height that is repeatable. The number should be around 200.....+/- 20 or so. 2. I would change the z-rod because the spring could be worn out and when the vacuum turns on....it ca
Electronics Forum | Mon Nov 21 14:22:22 EST 2011 | mosborne1
Tim, The main controller card has a battery on it. Power down the machine and disconnect power. Stick a credit card between the battery and the clip. Hold for at least 60 seconds. Then power back up the machine. Make sure to have yourmod codes writ
Electronics Forum | Thu Nov 17 15:57:41 EST 2011 | olddog
Hi Bobpan, Regarding "second", the results of the test are no difference - still rejects the part. I tried 2 mils, 3 mils, 5 mils, 7 & 9. I changed the tolerances fron about 15% to 20%+. By the way, I did put on the new nozzle and it is still the sa
Electronics Forum | Thu Nov 17 14:33:02 EST 2011 | olddog
Thanks again Bobpan for all of your help. I hope some of my questions are dumb ones. Regarding "first", the QA error 0, you were right. In checking the setup, for some reason theta was 65227 instead of the 0 that I thought I had set. Regarding "sec
