Electronics Forum | Wed Oct 10 08:13:03 EDT 2007 | cyber_wolf
Hi, What is the expected reject rate for capacitors on a CP643 machine. I estimate that we are dumping around 1 in 20 on average. I have played around with lighting levels,vision types etc. Nozzles are in mint condition. Can anyone offer any advice
Electronics Forum | Thu Oct 11 06:36:57 EDT 2007 | cyber_wolf
Feeder is brand new. (Checked cal. even though it was new) Lighting is good. Machine is in perfect cal. Nozzles are brand spankin new from Fuji. I was able to lower the reject rate considerably by playing with the offset and gain. I am placing caps
Electronics Forum | Fri Oct 12 15:52:41 EDT 2007 | etienne
Hope that your PCB is supported evenly, I mean really plane to the conveyer rail. If not this may warp the PCB upwards, causing fiducials to be identified not accurately. Also I suggest you to check Mark Info of the fiducials and have a look at the t
Electronics Forum | Thu Oct 18 14:30:37 EDT 2007 | wayne123
I talked to someone regarding the Biral oil and they said that they have had a problem with it "jelling up" when exposed to oxegen. Has this been a problem for you as well? I ordered some Stabylyn 773ND from Vitronics. I hope this stuff works for 57.
Electronics Forum | Fri Oct 19 17:09:56 EDT 2007 | hegemon
We have both DRS24 and DRS25 Lead Free rework is done for the most part on the DRS25, although the DRS24 can handle some of our smaller pbFree assemblies. We bought the DRS25 machine new, it was not an upgrade. The machine is very successful at pb
Electronics Forum | Mon Oct 22 21:34:36 EDT 2007 | davef
Double check on this, but we have this little voice in our heads telling us that your AgPd termination is intended for conductive adhesive applications. Check with your component supplier. We recall a thread on SMTnet [ http://www.smtnet.com/forums
Electronics Forum | Tue Oct 23 07:03:52 EDT 2007 | davef
We're not really sure. Usually when solder leaves the pads and wicks-up a component lead, it means the component lead is much warmer than the pad on the board. This is the direction we would have taken this if we hadn't taken the AgPd / conductive e
Electronics Forum | Mon Oct 22 10:47:32 EDT 2007 | cyber_wolf
You absoultely must have a calibration jig. You should be able to justify this on downtime alone. Make sure your take up axles and white rollers are squeeky clean on the 12's. Also make sure that they are not running the cam speed too fast. We do no
Electronics Forum | Tue Oct 23 14:41:11 EDT 2007 | barryg
we purchased a mirtec machine and have been very happy with it. Programming is easy, good support, it is very fast and you can make it as fault sensitve as you want with many inspection points to choose and flexability to alter inspection criteria. I
Electronics Forum | Fri Dec 14 08:06:39 EST 2007 | gcamac
I have had an inline Mirtec for around two years now and we like it overall. The false calls we see are due to the lack of consistancy of the markings on the components. This usually causes some tweeking to the library when the first piece is produ
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