Yahoo Groups archive
Thread
2014-07-17 by qz9090@...
2014-07-17 by Brad Thompson
On 7/17/2014 2:12 PM, qz9090@... [Homebrew_PCBs] wrote: > > I have a PCB that has a broken copper trace on it. What are some > methods of repairing the trace that I could try that would be easy to > perform and not break the bank? > > Thanks. > > Frank P. > Hello, Frank and the group-- The easiest and least expensive method is to use either a strand of enameled magnet wire or AWG #30 wirewrap wire to bridge the broken trace. If possible, solder the repair wire to vias or pads on the ends of the trace. That's easier than scraping solder mask from the broken area, tinning the exposed copper and bridging the gap with solder or a small strand of wire. Holding the bridging wire in place, holding the soldering iron and feeding solder requires three hands<g>. If the broken trace handled high currents, use larger-diameter wire. 73-- Brad AA1IP --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com
2014-07-17 by Stefan Trethan
That's the gist of it, page 23. <https://escies.org/download/webDocumentFile?id=49130> ST On Thu, Jul 17, 2014 at 8:27 PM, Brad Thompson brad.thompson@... [Homebrew_PCBs] <Homebrew_PCBs@yahoogroups.com> wrote:
> > On 7/17/2014 2:12 PM, qz9090@... [Homebrew_PCBs] wrote: >> >> I have a PCB that has a broken copper trace on it. What are some >> methods of repairing the trace that I could try that would be easy to >> perform and not break the bank? >> >> Thanks. >> >> Frank P. >> > Hello, Frank and the group-- > > The easiest and least expensive method is to use either a strand of > enameled magnet wire > or AWG #30 wirewrap wire to bridge the broken trace. > > If possible, solder the repair wire to vias or pads on the ends of the > trace. That's > easier than scraping solder mask from the broken area, tinning the > exposed copper > and bridging the gap with solder or a small strand of wire. Holding the > bridging > wire in place, holding the soldering iron and feeding solder requires > three hands<g>. > > If the broken trace handled high currents, use larger-diameter wire. > > 73-- > > Brad AA1IP > > --- > This email is free from viruses and malware because avast! Antivirus protection is active. > http://www.avast.com > > > > ------------------------------------ > Posted by: Brad Thompson <brad.thompson@...> > ------------------------------------ > > Be sure to visit the group home and check for new Links, Files, and Photos: > http://groups.yahoo.com/group/Homebrew_PCBs > ------------------------------------ > > Yahoo Groups Links > > >
2014-07-17 by Stefan Trethan
This is also a good rework guide I found while looking for the ESA paper: <www.intertronics.co.uk/resource/guide1.pdf> Keywords: Intertronics PCB circuit board repair rework broken trace bow twist conformal coating removal delamination soldering basics solder joint acceptability (just so I can find it again later). ST
On Thu, Jul 17, 2014 at 8:58 PM, Stefan Trethan <stefan_trethan@...> wrote: > That's the gist of it, page 23. > <https://escies.org/download/webDocumentFile?id=49130> > > ST > > > On Thu, Jul 17, 2014 at 8:27 PM, Brad Thompson > brad.thompson@... [Homebrew_PCBs] > <Homebrew_PCBs@yahoogroups.com> wrote: >> >> On 7/17/2014 2:12 PM, qz9090@... [Homebrew_PCBs] wrote: >>> >>> I have a PCB that has a broken copper trace on it. What are some >>> methods of repairing the trace that I could try that would be easy to >>> perform and not break the bank? >>> >>> Thanks. >>> >>> Frank P. >>> >> Hello, Frank and the group-- >> >> The easiest and least expensive method is to use either a strand of >> enameled magnet wire >> or AWG #30 wirewrap wire to bridge the broken trace. >> >> If possible, solder the repair wire to vias or pads on the ends of the >> trace. That's >> easier than scraping solder mask from the broken area, tinning the >> exposed copper >> and bridging the gap with solder or a small strand of wire. Holding the >> bridging >> wire in place, holding the soldering iron and feeding solder requires >> three hands<g>. >> >> If the broken trace handled high currents, use larger-diameter wire. >> >> 73-- >> >> Brad AA1IP >> >> --- >> This email is free from viruses and malware because avast! Antivirus protection is active. >> http://www.avast.com >> >> >> >> ------------------------------------ >> Posted by: Brad Thompson <brad.thompson@...> >> ------------------------------------ >> >> Be sure to visit the group home and check for new Links, Files, and Photos: >> http://groups.yahoo.com/group/Homebrew_PCBs >> ------------------------------------ >> >> Yahoo Groups Links >> >> >>
2014-07-18 by Brian Symons
As others have mentioned, you can just use some wire to bridge the gap. You can also use "soder wick" desoldering wick if it needs higher capacity. There are lengths of different width track available or sheets with tracks, pads etc that you an get for PCB repair but they are expensive. You can get a bit of copper foil & cut it to width & lap solder it on. The last option is to get anoth PCB which has some tracks of the same with. Solder a piece of copper wire on the end of a track longer than you need. Now over heat the track with a soldering iro & use the soldered on piece of wire as a handle to lift the track off. You now have some track for your repair. Any deposits on the track can be carefully removed using a typewriter erasor. Regards, Brian.
On 18-July-2014 04:12, qz9090@... [Homebrew_PCBs] wrote: > > I have a PCB that has a broken copper trace on it. What are some > methods of repairing the trace that I could try that would be easy to > perform and not break the bank? >
2014-07-23 by qz9090@...
2014-07-23 by qz9090@...
2014-07-23 by qz9090@...
2014-07-23 by qz9090@...
2014-07-24 by Stefan Trethan
Oh, I also forgot to ask. I have seen a Circuit Writer Pen. Is this kind of thing any good?
I have also seen a Green Protective Coating Pen. Does thing kind of thing work? And, is it necessary to use after my repair?
Thanks.
Frank P.