Electronics Forum | Wed Oct 06 11:52:45 EDT 2004 | Mike Konrad
You state that you need a washer for �pcb washer/cleaner for misprints etc� Is it only for misprints or is it also for post-reflow de-fluxing? I would not suggest that you utilize one machine for both applications. Misprints should always be cle
Electronics Forum | Thu Sep 29 18:57:14 EDT 2016 | vchauhan
Is it ok to re-print the mis-print PCB? Personally I am oppose to re-print the mis-print board. For two reasons. 1. You will end up adding solder paste on the bottom side of the stencil. 2. You may smear solder paste in some area. But I would like to
Electronics Forum | Fri Sep 30 10:37:35 EDT 2016 | ttheis
We sometimes have a misprint and we would never re-print on a board with paste on it already because it will surely get paste all over the bottom of your stencil and could smear between traces. If we do mispront we have to clean the paste off the boa
Electronics Forum | Mon Oct 03 07:38:36 EDT 2016 | cyber_wolf
We successfully re-print mis-prints all of the time. We have SPI machines at every printer that let us know if it is OK or not. Sometimes dealing with the solder defect is better than cleaning the mis-print. It is very difficult not to wedge solder
Electronics Forum | Wed Jul 15 17:47:59 EDT 2015 | mikekeens
I've read different views on this but the best results i've seen are from when the misprinted PCB is put directly into an automated 'spray-in-air' cleaning machine and cleaned using an appropriate cleaning chemical. Any attempt to manually clean the
Electronics Forum | Thu Jul 20 18:30:08 EDT 2000 | mbourke
What is the preferred method of cleaning misprinted double sided No-Clean boards which are assembled on side 1 ? What type of equipment is being used ? What solvents / detergents work well for a variety of solder pastes / glues ?
Electronics Forum | Fri Jul 26 08:41:52 EDT 2013 | cyber_wolf
We are looking at buying a dedicated machine for cleaning misprints. Does anyone have any experience with Smart Sonic or the other manufacturers? Any feedback is appreciated. Thanks
Electronics Forum | Fri Jun 19 16:41:07 EDT 2015 | Timothy ONeill
IPC 7526 details the correct process for cleaning misprinted PCB. Available at the link below. http://www.smartsonic.com/PDFfiles/IPC7526Handbook.pdf
Electronics Forum | Thu Oct 10 20:10:44 EDT 2019 | dekhead
More information on "mis-print": degree, direction, repeatability? If it is a repeatable offset, there are individual print direction specific offsets available... Or is it possible that there are erroneous offsets applicable to print direction causi
Electronics Forum | Thu May 04 01:52:17 EDT 2023 | davef
Look at IPC-7526 - Stencil and Misprinted Board Cleaning Handbook, Misprinted Circuit Board CleaningCLEANING [ https://www.multi-circuit-boards.eu/fileadmin/user_upload/downloads/leiterplatten_design-hilfe/ipc-7526.pdf ] ITW/EAE says "Typically, th
