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remove solder from a through-hole (bantamDAC)

post #1 of 16
12/31/09 at 12:52am
Thread Starter 
so, while I was making my bantamDAC I accidentally got some solder into one of the through-holes. Particularly, the ones where the USB connects to.

Normally, I'd just heat up the solder and push the part through...

but, because I am making a "cable-dac", I need to push strands up thin wire through. This.. is proving to be difficult.

Does anyone have any tips?
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post #2 of 16
12/31/09 at 1:00am
Solder sucker, or desoldering tool: Vacuum Desoldering Tool - RadioShack.com
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post #3 of 16
12/31/09 at 1:03am
Thread Starter 
anything I could do.. tonight..? without having to leave and go to RadioShack?
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post #4 of 16
12/31/09 at 1:06am
Any solid core wire? Push that through.

Solder wick or a pump is a good idea. If you have wick and can't get, sometime I find adding more solder to help.
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post #5 of 16
12/31/09 at 1:07am
Thread Starter 
Quote:
Originally Posted by cobaltmute View Post
If you have wick and can't get, sometime I find adding more solder to help.
alright, I can give that a try.
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post #6 of 16
12/31/09 at 1:09am
heat it up and move the iron to the edge of the hole and blow hard right at the hole, usually works
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post #7 of 16
12/31/09 at 1:29am
Quote:
Originally Posted by dude_500 View Post
heat it up and move the iron to the edge of the hole and blow hard right at the hole, usually works
That works for me too, just be careful where the solder blows to.
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post #8 of 16
12/31/09 at 1:45am
heat it use a tooth pick
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post #9 of 16
12/31/09 at 1:51am
braid as solder wick. have any coax in the house you can cut?
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post #10 of 16
12/31/09 at 1:58am
Get a bag of cheap resistors for a buck or two. Heat up the hole and run the resistor's lead through it a time or two. Use the other end if you need to.

The lead will usually wick up the solder and leave the hole clean.

Also, I usually put all of my clipped leads into a bowl while soldering a PCB. When I muck up a hole, I'll grab one of the clippings with needlenose pliers and use it in this way to clean out the hole.

Putting clipped leads into a bowl also speeds cleanup when you're done, too.
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post #11 of 16
12/31/09 at 2:31am
Thread Starter 
Quote:
Originally Posted by Uncle Erik View Post
Get a bag of cheap resistors for a buck or two. Heat up the hole and run the resistor's lead through it a time or two. Use the other end if you need to.

The lead will usually wick up the solder and leave the hole clean.

Also, I usually put all of my clipped leads into a bowl while soldering a PCB. When I muck up a hole, I'll grab one of the clippings with needlenose pliers and use it in this way to clean out the hole.
I've been trying that already. Thanks for all the responses, I haven't been able to try anything out yet though.
EDIT: I think it's because the holes are really small, and I can barely get the resistor lead in. maybe if I can find one that has a really small diameter and it'll work.
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post #12 of 16
12/31/09 at 3:24am
if you cant sort it out; is there anything stopping you from using the pad on the top side for this wire?
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post #13 of 16
12/31/09 at 3:28am
I've struggled with this problem many a time and I think one secret to getting a lot of these tips to work is that the solder needs flux in it. After you heat it a few times, it dries up and doesn't move nearly as well. Adding flux or some more solder helps it flow again so you can poke or blow it out.
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post #14 of 16
12/31/09 at 3:56am


Excelta 332A | Soldering/Rework Aids & Probes

the probe included with Digi-Key #243-1101-ND also works pretty well.
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post #15 of 16
12/31/09 at 5:43am
+1 for the toothpick since the solder doesn't stick to it.


/U.
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