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Topic: Soldering mistake... (Read 1 time) previous topic - next topic

nate890

I've managed to solder over a useful hole... How can I fix this and get what I need in that hole? I've tried heating it up and sticking my headers through, but it cools too quickly to be able to do that.

marco_c

A solder sucker to suck it up or solder braid to soak it up.
Arduino libraries http://arduinocode.codeplex.com
Parola for Arduino http://parola.codeplex.com

wanderson

#2
Jul 23, 2012, 01:51 am Last Edit: Jul 23, 2012, 01:52 am by wanderson Reason: 1
Pick up some soldering wick and a cheap desoldering pump.  Very useful tools to have on hand, and the wick allows hand soldering ever fine pitch smd chips.

http://www.amazon.com/Aven-17541-Desoldering-Wick-Width/dp/B003E48ERK/ref=sr_1_2?ie=UTF8&qid=1343001089&sr=8-2&keywords=solder+wick
http://www.amazon.com/Aven-17535-Desoldering-Locking-Plunger/dp/B003E48EPM/ref=sr_1_2?s=industrial&ie=UTF8&qid=1343001137&sr=1-2&keywords=desoldering+pump

The above are examples, you can undoubtably find cheaper versions
New true random number library available at: http://code.google.com/p/avr-hardware-random-number-generation/

Current version 1.0.1

bobthebanana

Blow through the hole while solder is molten, usually works.

nate890

I assume those remove the excess metal used to solder... but I have neither. Any other solutions?

wanderson


I assume those remove the excess metal used to solder... but I have neither. Any other solutions?


Yes, buy one or both of the rather cheap tools mentioned.  Basic tools are nescessary for pursuing electronics and wick and desoldering pumps are among those basic tools needed.
New true random number library available at: http://code.google.com/p/avr-hardware-random-number-generation/

Current version 1.0.1

wanderson


Blow through the hole while solder is molten, usually works.


Never tried it, but would add the suggestion that you blow the molten hot metal in a direction where it will cause no harm...
New true random number library available at: http://code.google.com/p/avr-hardware-random-number-generation/

Current version 1.0.1

marco_c

If you have neither then blow through the hole as suggested. You should invest in those other tools, though.
Arduino libraries http://arduinocode.codeplex.com
Parola for Arduino http://parola.codeplex.com

Foolios

Blowing through the hole sounds like a bad idea. Who knows where some hot bits will splash to.

MarkT


Blowing through the hole sounds like a bad idea. Who knows where some hot bits will splash to.


Absolutely, don't do this if you value your eyes.  Once blew out a candle from too close - hot wax in the eyes, I learnt my lesson.
[ I won't respond to messages, use the forum please ]

nate890

Blowing through it didn't seem to work

nate890

Ahah! got it with a sowing pin! thanks all

bibre

I was going to say that inserting a wooden toothpick while the solder is molten also works.

Another non-orthodox solution is to melt the solder and quickly bang you board aganst an ashtray or something else with care. Solder will come off.
Billy     http://www.z-world.com/operations/gbremer/

When you've eliminated the impossible,
whatever remains, however improbable, must be

Docedison

My personal trick is to heat the part and pull out the wire or pin and then re-heat it slightly and just bang it against my leg... soft enough to not hurt anything and just hard enough to create a little mechanical shock to dislodge the solder. I can Pull 20 pins out of a (.6mm pins) PC board and have holes clean enough to put another pin strip in place in 10 15 minutes. The Hot solder is cool enough not to do any damage to my pants either. I di wear Denim all the time though and the solder remnants will flick off easily without damaging the material (or I have been exceedingly lucky for 30+ years. When I worked for a living I frequently use that method as I didn't have to wait for the desoldering tool to heat up and it is a lot easier to clean a few solder spots from my pants than it is to clean the desoldering machine... I don't have to take a hot pair of pants apart and deal with that rather toxic combination of lead and tin oxides that always forms as a dust in the iron. Also don't have to worry about burns either as I don't wear hot pants...

Doc
--> WA7EMS <--
"The solution of every problem is another problem." -Johann Wolfgang von Goethe
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JoeN



Blow through the hole while solder is molten, usually works.


Never tried it, but would add the suggestion that you blow the molten hot metal in a direction where it will cause no harm...


I hate to say this but I have done this.  I don't really recommend it, there can be some backspray... :)
I have only come here seeking knowledge. Things they would not teach me of in college.

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