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quick settings thanks to paul daniels
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quick settings thanks to paul daniels - available at https://www.youtube.com/watch?v=IrvnWPoGU5s | |
quick settings | |
============================= | |
thanks to paul daniels | |
https://www.youtube.com/watch?v=IrvnWPoGU5s | |
bga removal from mainboard | |
============================= | |
460c temp | |
110 litres/min | |
9mm nozzle | |
bga on its own | |
============================= | |
wick removing old solder | |
420c temp | |
60 litres/min | |
9mm nozzle | |
mix regular thick paste with IPA, to make a | |
'genuinely wet wet baste' | |
cheap iphone stencil with square holes | |
reballing, melting paste | |
420c temp | |
60 litres/min | |
9mm nozzle | |
'went way too quick' | |
flashed over in about 3-5 seconds | |
the balls need to very slowly melt | |
dry paste this time | |
crumbly / grainy | |
scratching it over the mask with spatula | |
going up slow is to make sure all parts | |
of the work area are at an even heat | |
melting should happen a bit more slowly | |
around 5-10 seconds, in an orderly pattern | |
dry paste makes things easier | |
dont have to worry about weeping under the stencil | |
and it gives more time to melt | |
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