Electronics Forum: set reject bin (Page 1 of 12)

Re: un-tested assembled circuit reject rates

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

Can someone help me on correcting CAD information on Univesal mc

Electronics Forum | Thu Feb 01 16:33:57 EST 2007 | mika

The reject rate of yours could be a number of reasons. 1. Which component types are rejected? 2. From a particular nozzle? 3. If the rejected part will be dropped on the reject belt or reject bin; it suggests that there is a problem with the componen

Quad 4C part placement rejection

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

Component attrition

Electronics Forum | Mon Dec 23 18:06:38 EST 2002 | jersbo

Tried and True is counting your components if there is any indication of loss... this is a great TOPIC... unfortunately there are many ways to lose components. Feeder setup,problems with a feeder while in the machine(IE mylar problems or wrong step)

Agilis Feeders Exposed Parts Upon Removal from Feeder?

Electronics Forum | Thu Oct 27 13:42:12 EDT 2011 | sjs2303

I know what you mean but have never found a tool that would do this sufficiently. For higher value parts you should keep them in a bag for the next time you run a job that uses that part and hand fit them. The nature of the feeders means that you w

Quad 4C part placement rejection

Electronics Forum | Wed Nov 16 14:44:31 EST 2011 | olddog

Bobpan, thank you for your speedy response. As to the items you noted: 1. I did a test of Funct 30 for the first 5 nozzles, 2 times each as follows: noz1 Ht=215 & 219, center=1005 (all nozzles all tests), run out 2.2 & 2.7. Noz2 Ht=228 &228, runout=

Acceptable standards

Electronics Forum | Wed Jun 01 13:07:56 EDT 2005 | chunks

We return materials to stock all the time. Have also noticed some repair people like to pilver the reject bin every so often so they have a stock pile of their own. This too adds up on discretes.

Agilis Feeders Exposed Parts Upon Removal from Feeder?

Electronics Forum | Fri Nov 04 22:12:57 EDT 2011 | machinehead

I know what you mean but have never found a tool > that would do this sufficiently. For higher > value parts you should keep them in a bag for the > next time you run a job that uses that part and > hand fit them. > > The nature of the feeders

Component attrition

Electronics Forum | Mon Dec 23 20:14:24 EST 2002 | vinhmach1

Hi, You can't void of loose parts. But can reduce. You can ask your Lead operator or the the person in charge for that individual line to keep track on the hourly monitor. If they tracking the number of PCB went thru the machine (getting the coun

Silly Attrition Levels

Electronics Forum | Mon Apr 28 09:33:34 EDT 2003 | chrissieneale

This may be a really silly question but does anyone pick up and hand place the reject parts from the scrap bins of the machine? My attrition rates are out of control and i think this would not only highlight the problem but also save oodles of money

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