Electronics Forum | Mon Jun 22 16:34:14 EDT 2020 | stephendo
What I have seen used are belt driven roof mounted exhausts. There would be a drum fan that is driven by belt and motor. That way the fumes never go over the motor or the belt. We would have to replace the belt every couple of years or so but then it
Electronics Forum | Mon Sep 20 22:17:04 EDT 2021 | ttheis
SOLVED Upon manually activating the zaxis to drive the spindles down, it was noted that the touch down sensor for spindle #2 was activating at a certain point in the travel without touching anything. I went to look at the adjustment of the sensor
Electronics Forum | Fri Nov 11 01:32:41 EST 2022 | cooper
Hi Sir, Wish you good day. We have what you are looking for. we discovered that you are looking for SMT line equipment, is it right? our factory main business is all kinds of SMT line equipment would you like to see our machine catalog? YOUR Coo
Electronics Forum | Thu May 04 13:16:07 EDT 2023 | tommy_magyar
If I would need to investigate this claim, I would ask the following questions: - was traceability used when this product was manufactured? - was testing mandatory when this specific product was built? - is the test covering the QFP we are talking ab
Electronics Forum | Tue Dec 05 22:27:05 EST 2023 | padawanlinuxero
Hello, I am experiencing issues with one of my PCB suppliers. Specifically, I am having trouble with solder shorts occurring on a SOIC8 component, and always in the same pads. Upon inspection with a microscope, I discovered that three of the pads ar
Electronics Forum | Wed Dec 13 19:40:38 EST 2000 | Jerry Wetzel, SME, EM/SME
Your profile must be precise, your stencil aperture sizes and shapes are very important, and the size of the pads on the boards should be very close to what the part manufacturer recommends. We had some trouble with hi-temp paste, and discovered tha
Electronics Forum | Fri Dec 08 23:02:24 EST 2000 | LeeKibler
Beware the foam fluxer. I had a problem with cracked caps that just about drove me off the deep end. I discovered that my foam fluxer air knife was not turned on resulting in excessive flux. The excessive flux (VOC free) was not properly dried off
Electronics Forum | Tue Feb 20 14:00:50 EST 2001 | billschreiber
Hi Dave, It sounds like you haven�t been shopping for stencil cleaners in awhile. Ultrasonic stencil cleaners start at $12,900, evaporators start at $6,800 and 440-R SMT Detergent is $19.00 per gallon. For $19,719.00 you get everything you need to
Electronics Forum | Tue May 15 15:15:53 EDT 2001 | ohboy
Hi all, I just discovered this forum and I'm very impressed. We have a vendor who recently stopped placing desiccants in the vacuum packaging for our pcbs. (Yes, it's on the dwg!) His reasoning was that the desiccants can degrade the finish on the
Electronics Forum | Wed Aug 18 21:26:08 EDT 1999 | Dave F
| Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | This is what I did. | | Created a removal profile, I h
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