this post was submitted on 09 Apr 2024
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You would think it would make me feel better to know that every person has intrusive thoughts. But it doesn't at all, quite the opposite.

Yall are as crazy as I am, we are doomed.

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[–] [email protected] 17 points 2 months ago (14 children)

I prefer grabbing small amounts of solder with the tip of the soldering iron instead. Helps a lot when solderling small stuff, esp. smd components

[–] [email protected] 18 points 2 months ago* (last edited 2 months ago) (13 children)

I prefer adding solder while soldering. The solder itself also holds flux, and often when you do it that way you don't need to add flux yourself. Also if you solder through hole and you add solder to the tip before soldering all the flux dissappears, and you don't have enough solder for the weld.

And small amounts of solder doesn't mean short strips, which is what you get when you do what OP posted.

Source: I work in the circuit board population field. And do inspection and repairs.

[–] [email protected] 3 points 2 months ago* (last edited 2 months ago) (2 children)

It really depends on whether it's soldering of SMD or THT components: it's a lot nicer to just feed the solder when doing through hole pins until it's just the right amount for that pin and as you pointed out the flux is in the solder, but if you're manually soldering SMD components with their tiny 0.5 mm legs or smaller, a tiny bit of solder on the tip of the iron is enough for 3 or 4 legs and the soldering wire (even the .3mm stuff) just gets in the way and even makes it much more likely to get solder bridges.

Mind you, I don't think SMD components are soldered in professional production settings since it's way simpler to just use a pick and place machine and a soldering oven, so it probably only matters for hobbyists.

[–] [email protected] 4 points 2 months ago (1 children)

To be fair, neither are typically hand soldered in profesional environments anymore (outside of rework). Surface mount stuff gets paste and sent through a reflow oven. Through hole stuff gets wave soldered or sent through a selective solder machine. The only thing I can think of that needs to be hand soldered anymore are batteries because sending a lithium ion battery through a reflow oven or over a pot of molten metal is a bad idea.

Also, fun side fact, lithium ion batteries also explode if you stick then in antistatic bags. I'll let you imagine how our inventory people discovered that.

[–] [email protected] 2 points 2 months ago

Yeah, for smt I just use a heat gun or rework station for repairs. Only part I use an iron for that is when a lead didn't take. Even then, the solder is already there so just flux is enough.

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