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@dreamcat4
Last active November 16, 2019 22:12
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quick settings thanks to paul daniels
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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