Electronics Forum | Tue Jul 12 08:54:34 EDT 2016 | leeg
well there you go. I found that trying > different values in the "Placing Stroke" had a > big effect. I changed it to 2mm and it placed > them well, but I could see the board also flexing > a little, went to 1mm and the problem came back, > so
Electronics Forum | Mon Jul 11 13:21:40 EDT 2016 | bradholland
well there you go. I found that trying different values in the "Placing Stroke" had a big effect. I changed it to 2mm and it placed them well, but I could see the board also flexing a little, went to 1mm and the problem came back, so have sat in th
Electronics Forum | Tue Jul 12 10:33:24 EDT 2016 | dontfeedphils
I'd start by checking and reteaching the nozzles (this is automatic, it'll measure the nozzle length and vacuum values for each nozzle). After that double check the value you have entered for the PCB thickness as this will impact where the machine t
Electronics Forum | Mon Jun 13 15:13:36 EDT 2005 | peter ng
The placing stroke(mounting press) of the BGA may be too high.Try to reduce the value at the component data.
Electronics Forum | Wed Jun 03 15:45:36 EDT 2015 | ldempsey
Well, it took me a while but I had a look at some gerbers. On a PCB with neighboring 0402's 0.006" apart, and paste reduced 0.75mil on each side, I get lots of bridging. On a later rev of the same PCB, we have neighboring 0402's 0.018" apart,and pa
Electronics Forum | Tue Jun 02 13:42:44 EDT 2015 | ldempsey
Hello all, Some background. We have JUKI machines (FX2, KE2000's and KE3000's) We're looking into an issue with 0402's in close proximity to each other. The paste gets mashed into the paste from adjacent parts. Some have suggested I deviate from
Electronics Forum | Wed Nov 24 16:08:09 EST 2004 | Terrapin Station
This depends on the model. Most machines and turret style typically overstroke .2mm with a force of 250 - 300 grams of force. the reason for the over stroke is to place the component into the paste. This can be adjusted through part library manipul
Electronics Forum | Wed Aug 29 20:48:09 EDT 2001 | Jones
I know this is not the answer to your question but it may help until you get the right cleaning process in place. I have found that kneading the paste with 3-4 double strokes during the first print has aided in bring our defective ppm down somewhat.
Electronics Forum | Mon Nov 29 16:04:47 EST 2004 | Terrapin Station
They are actually diamond impregnated tips. The tip can be cleaned using a special jig. this will extend the life. these nozzles are from a machine platform dating back to 1997. The RSS can last for 1,000,000 cycles. SA and MA are similiar but requi
Electronics Forum | Sat Jan 06 10:52:09 EST 2001 | Steve Thomas
I don't know the specs. of our MSHII's, as I'm sort of detached from that part of the process, but supposedly they are capable. Panasonic also recommends we buy all new feeders (well, big surprise there), because of the risks involved with retrofitti
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