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Help TQFP welding problem

Electronics Forum | Fri Apr 16 17:44:12 EDT 2021 | dwl

I'm concerned by the solder spheres in the via on the first picture. Are these boards mis prints that got washed and printed again? To me it almost looks like someone washed the board, but left a lot of solder paste on it. The lack of flux prevents

Z4-axis The position error exceeded the limit

Electronics Forum | Mon Apr 19 16:07:32 EDT 2021 | sacd

Hello. When I am originating machine Juki KE20060RL Error On Initializing appear Z4-axis. The position error exceeded the limit. I am check and diagnosed that motor Z don't move at all. Attached axis monitor shows the current state of the axis . Coul

Z4-axis The position error exceeded the limit

Electronics Forum | Thu Jun 10 22:13:01 EDT 2021 | roycet4

I would start by replacing the Z axis motor for head #4, you previously mentioned there was also a theta axis issue with head #4, you might be best served to replace both motors. These motors do go bad from time to time, We have 28 Juki machines wher

Yamaha YV88X / Philips Assembleon EMERALD-X optimalization problem

Electronics Forum | Thu Jun 24 08:05:21 EDT 2021 | vinitverma

That's the correct way when optimizing a new program or with less part numbers. But when reoptimizing a running program, it may not be so convenient to change all feeder numbers to '0'. Here is where changing the position to 'Relative' helps without

Yamaha YV88X / Philips Assembleon EMERALD-X optimalization problem

Electronics Forum | Fri Jul 30 05:16:04 EDT 2021 | compit

Ok i did this: when optimizing PCBs, you can add "fixed PCB" - the machine treats this PCB as the one for which the feeders have reserved space. I enter places in such a PCB that are to be omitted during the allocation. It works very well - selected

YXLON X-Ray Machine

Electronics Forum | Wed Apr 21 23:05:37 EDT 2021 | duchoang

We have an YXLON Cougar X-Ray machine. Run good in 10 years. Now, when we started the machine as usual, the machine run START-UP process, Manipulator Reference OK, Vacuum OK, but not "Warm Up", the X-Ray keep turning off and on showing Voltage ~50KV

zener diode polarity

Electronics Forum | Sun Apr 25 08:06:47 EDT 2021 | pradeep14

Presently we are facing wrong loading of zener diode components in SMT Line. * In the particular product, we have two different part numbers of zener diode but the package and color code is same.Only the voltage is different is there in between two p

Selecting pick and place machine (comparison/personal experience/sales pitches)

Electronics Forum | Wed Apr 28 17:45:14 EDT 2021 | mishafockin

This is a very tricky question butt... we should be able to afford up to 200k for a full line (printer/PnP/inspection/oven) I know the cost of feeders will be very critical but looks like the good old pneumatic not cutting it anymore.

Selecting pick and place machine (comparison/personal experience/sales pitches)

Electronics Forum | Wed Apr 28 17:45:41 EDT 2021 | mishafockin

Flexibility (if what I am thinking about flexibility is correct) is more important than speed. Most of the time spent on reloads, not the runs. We have high mix and fairly low volume (100-1000) Medium complexity QFPs, 0402, LEDs 100-2000 components p

Selecting pick and place machine (comparison/personal experience/sales pitches)

Electronics Forum | Thu Apr 29 03:34:47 EDT 2021 | ttheis

That is a very tight budget for a new line with the capabilities you describe. You might be better off with a refurbished line from a reputable dealer. Equipment that is only a few years old can get you the capabilities you want within your budget.


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