@zwangseinweisung flux reduces surface tension, so you can heat the solder better
it doesn't increase the contact from soldering iron to non-solder-surfaces.
(also it's really hard to even find solder wire that doesn't already come with flux inside)
@drazraeltod You're right, but I like to think that it works better when I add flux.
@drazraeltod @leyrer I usually have a bit of solder on the tip of the iron. When making contact with the surfaces, the liquid solder creates a good thermal bridge and heat flows well. I'd also not worry to much about the preheating step. Just add the solder relatively fast and keep the iron until you see the shape of the solder change to that concave desired one. It's usually pretty apparent when that happens after around 3-5 seconds.
@ponygol that's what I do too - I still suck at soldering, but I kinda got the basics after building half a dozen quadcopters now
@gom das habe ich bisher noch nicht getan (und hätte auch noch nicht passende Ausrüstung da), aber das ist eigentlich eine ziemlich interessante idee
evtl. bei einem zukünftigen Projekt — sollte ich irgendwann wieder Zeit für sowas haben
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