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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Fri Sep 18, 2009 3:19 am Post subject: |
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| Curt Palme wrote: | | stefuel wrote: | | draganm wrote: | | Craig's right, stay away from dill bits. Not only will you lift a trace but can easilly strip the through-hole plating out of the PCB. |
Do whatever works for you. I have the drill thing down to a science. I'll not be convinced to do it another way. |
Is this your way of not admitting that the imploded green tube was actually caused by a wayward drill bit?  |
Shhhhhh 
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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SisterOfMercy
Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands
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| Posted: Sat Sep 19, 2009 12:59 am Post subject: |
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| Robert A. Hill wrote: | | To clean out holes, I use a clean copper wire as a wick. Sand the wire to remove any coating or oxidation, apply a little flux to the wire and on the solder in the hole. Heat the wire ( not the pad) until it is hot enough to melt the solder in the hole. push the wire thru the hole and remove it. The solder will wet the clean wire and the solder wlll come out of the hole when you remove the wire. It never takes more than one repeat to clear a hole. This minimizes damage to the pad by reducing heating of the pad area. |
Wow, I'll have to try this. When I'm desoldering parts I always add new solder first, then heat it up to put a needle through the hole. It works, but the PCB gets hot. What kind of copper wire do you use, just solid copper?
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The kissing and the colour come crashing down
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Robert A. Hill
Joined: 19 May 2006
Posts: 182
Location: Simpsonville, SC
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| Posted: Sat Sep 19, 2009 1:22 am Post subject: |
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Solid copper is the only bare wire I have in the small sizes needed for some holes. I have never seen uncoated multistrand wire. The multistran wire you find in insulated wires usually has adhesion promoters that cannot be easily removed. These materals keep the solder from wetting very well. Insulation can be stripped from solid wire and the copper is easily cleaned with a light sanding. Be sure to protect yourself by holding the wire with tweezers or wrap tape on one end.
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