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Ask HN: Resources to get good at soldering?

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Re: Ask HN: Resources to get good at soldering?

#81
post #80

The biggest thing for me was just being brave enough to go for it and give it a try, and then learning how to undo your mistakes. Re-do things you’re not happy with with braid, reflow things with flux, etc. I’ve torn vias out of old valuable boards doing restoration, and I learned trace repair and fixed it.

> just being brave enough to go for it and give it a try, and then learning how to undo your mistakes

This is true for most things. Don’t let the naysayers discourage you.

Re: Ask HN: Resources to get good at soldering?

#83

1. Use a soldering iron that can hit 400, and use a needle tip 2. Use leaded solder - lead-free is a pain. If you're not doing this for hours every day, even without ventilation, you'll be fine. 3. Heat the pads you're soldering to, not the solder. I used to tell kids to hold the iron to the pad for a count of three, then feed the solder in. 4. Two additional tools I find helpful - a solder sucker and copper wick.

Number three is basically the golden rule. From memory when I ran a production line with soldering stations ventilation is equally (and possibly more) important for lead free solder.

And do it with enough solder on the iron to get good thermal transfer. "Enough" really isn't a lot but it's also not a tip that's been wiped entirely dry. How you hold the tip relative to the via/component lead matters (because you want the liquid solder to help with the thermal transfer).

Re: Ask HN: Resources to get good at soldering?

#84
post #27

Earlier quoted context omitted.

I find watching videos of other people soldering is almost as good as practicing myself.

I get frustrated watching soldering videos online because there are a lot of videos online of people who are really bad at soldering.

This is why I watch videos of challenging repairs, it would be impossible to succeed without being good at soldering.

Re: Ask HN: Resources to get good at soldering?

#86

While soldering is not that hard, different tasks require different tools. Most of them can be from very cheap to very expensive. As a beginner I'd recommend the following: A small USB-C soldering iron supported by IronOS[1], e.g. Pinecil vor TS100 A solid stand with brass wool A KU soldering tip (looks a bit like a knife) for good heat transfer, too small tips are not good Thin ( No clean flux (not a pen) Isopropyl…

Also, make sure your solder is high quality. I've ordered solder from AliExpress - both leaded and unleaded - and they were terrible.

Re: Ask HN: Resources to get good at soldering?

#87
post #66

Find some trash and practice removing parts and soldering them back on first. Not mentioned here yet but the majority of early soldering attempt failures mostly come from crap irons and crap solder not human issues. You need a decent quality temperature controlled iron and decent quality solder, preferably flux cored if you're doing repairs. Here, I have a second hand Metcal iron which cost less than the much recomme…

Correct, half the skill in soldering is picking a good iron with good tips. After that it's the solder.

Only at the very end does your own soldering skill matter.

Re: Ask HN: Resources to get good at soldering?

#88
The principle behind a lot of good advice here is “creating the conditions for solder to naturally go where you want it to”. Cleaning, tinning, preheating are all part of creating those conditions.

So the moment you find yourself fighting or forcing the solder, it’s better to step back and create the right conditions.

Re: Ask HN: Resources to get good at soldering?

#89

While soldering is not that hard, different tasks require different tools. Most of them can be from very cheap to very expensive. As a beginner I'd recommend the following: A small USB-C soldering iron supported by IronOS[1], e.g. Pinecil vor TS100 A solid stand with brass wool A KU soldering tip (looks a bit like a knife) for good heat transfer, too small tips are not good Thin ( No clean flux (not a pen) Isopropyl…

If you have the budget the Hakko desoldering gun is a huge huge improvement over desoldering by hand w copper. I've gone from hating it to desoldering junk to harvest parts because it's so easy.
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