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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?

#91
Helping Hands! Articulating clips on a heavy base, sometimes with a magnifying glass, to help you keep two objects or two parts of an object at some specific angle/distance/etc. so that all you need to worry about is the fumes.

Exhaust fan! Put your station next to a window, both for light and ventilation.

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

#92
Lots of good general soldering tips here. If the DualShock 4 PCB is half as complex as the DualSense PCB, good chance you scratched a trace whole removing the sticks. If you can locate the damaged area you can jump it with a bodge wire (think of it like a wood bridge that broke in the middle so you can't walk across, and you make a small path with planks enough for one person to still cross, restoring the connection). Also make sure you didn't introduce a GND short, you may need to cut a trace in 1 or 2 spots in addition to jumping the damaged area if you did. I had a hell of a time getting out the first analog stick on a DualSense and ended up damaging the PCB. A multimeter in continuity mode is a must here for checking that the signal travels the expected path or finding the issue if it doesn't. It is most likely fixable, it was in my case, though it may take you a few days of troubleshooting. Also I would recommend a desoldering gun if you're going to do this a lot, analog sticks are very difficult to remove with just an iron. Often just the tiniest bit of solder clings to the pins in the holes and it won't budge. A hot air station could also work, but these have a tendency to melt all surrounding plastic before the solder and IMO are a last resort.

Look at the traces that go to the stick or that are near that area, look for scratches.

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

#93
post #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.

I don't fully agree. Hakko is high quality, quiet, but also VERY expensive (300+ bucks) and the gun contains the vacuum pump which makes it HEAVY and not easy to work with for longer than a few minutes.

The ZD-8965 is cheaper (not as high quality but good enough and only around 100 bucks), has a separated station with a very light gun, that is pretty easy to work with and it is significantly smaller more silent than other ZD-* models. Another advantage is that the gun can be replaced for around 25 bucks, so if you ever drop it or it gets leaky, you don't have to invest another 100 bucks.

I used it for desoldering / mill maxing multiple Logitech G515 keyboards with 88 switches (264 solder joints) and I worked through a whole keyboard with one go - no cleaning, no clog, no overheat.

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

#94
Get one of those training boards and keep repeating till you master it, the trick is to heat the board and you put solder and wire on it, not how most beginners go by heating the solder itself. Flux and other things are there as an aux to help in certain cases. I have been soldering since i was a kid (thanks dad for having the machine) and I use only two tips and some flux occasionally, nothing too crazy and don’t go obsessing over the details or the device brand or such.

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

#95

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.

Any recommendations?

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

#96
post #44

Earlier quoted context omitted.

Cutting wires, mostly.

Interesting, I want to hear the full story.

I use the cheap cutters such as Hakko 170's. They're sharp and convenient but essentially consumable. They're made from a relatively soft steel, and wear out, usually because you cut things that aren't copper. Some components have tinned steel leads.

If you dig through someone's old tool box, you'll find a pair of wire cutters with a half-moon nick in each blade from trying to cut something hard.

Naturally my use of wire cutters is declining, due to surface mount, but some of my boards still have larger through-hole parts, and I make custom cables for this and that during prototyping.

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

#97

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…

> Oscilloscope (mini beginner with display Cost around 30 bucks)

Any recommendations for this?

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

#98
These tips are not complete, but just the problem areas that I think noobs get stuck on:

- understand that different tasks require different amounts of heat. The reason a task is difficult or you ruined a board could be due to your iron not getting hot enough or too hot (traces come up).

- use flux, as others have said

- have proper ventilation, even for lead-free systems, there are plenty of other toxins you are likely exposing yourself to - straight into your lungs - if you solder in an unventilated area. Dont think "it wont happen to me".

- wear eye protection. tiny little beads of molten metal can and do fly up in random directions, especially when soldering wires.

- if you burn yourself, hold the affected area under cold water for 20-40seconds, way longer than you think is necessary. burns keep burning after the heat source is removed.

- get a good soldering iron if you are serious about doing it a lot. I am no expert, but I used a Metcal MX-500 for years. If you can afford it, do it. It was the cadillac of soldering irons. Don't get a $30 RadioShack model and wonder why you can't solder tiny SMT joints.

- get a bright spotlight for doing fine work. to me, the light was more important than magnification. the magnifying glasses just got in the way, and stereo microscopes are probably too expensive for you/most of us.

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

#100

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…

I also recently had to decide what soldering iron to get and I found this video extremely informative https://www.youtube.com/watch?v=aeXGb5q1OTA

I got an SL108 I'm really happy using with my 67W Anker brick (far more convenient than the FX 951 station I had to store + set up every time). I think I could do some precision work with my SL108 but if it became regular or a new project involved it I'd get something smaller, like the TS101 or similar, I guess.

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