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Newbie; Solder or not? Help

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Posted by Anonymous on Friday, September 12, 2003 7:07 PM
What I have done, in order to avoid soldering wire to N-scale code 55 rail, is to instead solder wires to the rail joiners prior to installing them. I place the wire on the bottom side of the rail joiner, so that once it is in place, the wire can be hidden under the ballast. This is the main reason I did it; to minimize the visual impact. I do this to every single rail joiner, so that every piece of track has feeders on each end; electrical blocks still have to be cut with a moto-tool. Admittedly, I am avoiding being a "real man" by not soldering wire to rail... but I *have* done it that way in the past, melted ties and all.
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Posted by Anonymous on Friday, September 12, 2003 7:07 PM
What I have done, in order to avoid soldering wire to N-scale code 55 rail, is to instead solder wires to the rail joiners prior to installing them. I place the wire on the bottom side of the rail joiner, so that once it is in place, the wire can be hidden under the ballast. This is the main reason I did it; to minimize the visual impact. I do this to every single rail joiner, so that every piece of track has feeders on each end; electrical blocks still have to be cut with a moto-tool. Admittedly, I am avoiding being a "real man" by not soldering wire to rail... but I *have* done it that way in the past, melted ties and all.
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Posted by Anonymous on Friday, September 12, 2003 3:40 PM
I use an Antex 20 watt iron for soldering track joints with a 2mm flat tip with multi-core solder.

One thing to remember when soldering track joints is to allow for temperature changes. If you live in an area with changeable weather, or as in my case, move the layout from a cool basement to a hot exhibition hall, put plenty of expansion joints in the rails. These are cuts in the rail, with a wire soldered loosly across the break, which allow for expansion and contraction of the metal rail.

I found out the hard way at one summer exhibition, when my track started buckling all over the place by the second day. I put breaks in each rail every 5 feet or so, as wide as a Dremmel cutting disc, and have never had the problem since.

Jon
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Posted by Anonymous on Friday, September 12, 2003 3:40 PM
I use an Antex 20 watt iron for soldering track joints with a 2mm flat tip with multi-core solder.

One thing to remember when soldering track joints is to allow for temperature changes. If you live in an area with changeable weather, or as in my case, move the layout from a cool basement to a hot exhibition hall, put plenty of expansion joints in the rails. These are cuts in the rail, with a wire soldered loosly across the break, which allow for expansion and contraction of the metal rail.

I found out the hard way at one summer exhibition, when my track started buckling all over the place by the second day. I put breaks in each rail every 5 feet or so, as wide as a Dremmel cutting disc, and have never had the problem since.

Jon
  • Member since
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Posted by Anonymous on Thursday, September 11, 2003 6:41 AM
Soldering is the answer. Flex track is best worked when joined 2 0r 3 sections together prior to laling the track. When used joined sections together on curves the track are best cut with a rotary tool cut off disk to get even lengths. It makes a clean cut that rail joiners slip over. One "oh by the way" is is best to leave a few joints with rail joiners NOT soldered in place to allow for expansion and contraction. Just make sure you run power feeders toboth side of the unsoldered joint and there will be no problems.
The key to good soldering is using flux "paste or liquid" otherwise the soler will ball it. It is amazing how well solder will flow with flus pre-applied.
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Posted by Anonymous on Thursday, September 11, 2003 6:41 AM
Soldering is the answer. Flex track is best worked when joined 2 0r 3 sections together prior to laling the track. When used joined sections together on curves the track are best cut with a rotary tool cut off disk to get even lengths. It makes a clean cut that rail joiners slip over. One "oh by the way" is is best to leave a few joints with rail joiners NOT soldered in place to allow for expansion and contraction. Just make sure you run power feeders toboth side of the unsoldered joint and there will be no problems.
The key to good soldering is using flux "paste or liquid" otherwise the soler will ball it. It is amazing how well solder will flow with flus pre-applied.
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Posted by Anonymous on Saturday, September 6, 2003 10:44 AM
I have to agree with rsn48, real men solder in n scale...lol. I have just started soldering all the rails on my n scale layout & after 3 or 4 melted ties I realized it isn't as difficult as it sounds.
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Posted by Anonymous on Saturday, September 6, 2003 10:44 AM
I have to agree with rsn48, real men solder in n scale...lol. I have just started soldering all the rails on my n scale layout & after 3 or 4 melted ties I realized it isn't as difficult as it sounds.
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  • From: Sierra Vista, Arizona
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Posted by cacole on Friday, September 5, 2003 10:47 AM
One thing that should never be soldered is a turnout. If anything on the layout is going to go bad, it will be a turnout, and it will be much easier to replace if it is not soldered in place. When I wired the Cochise & Western Model Railroad Club's 20 x 40 foot HO-scale layout, I soldered a power feed wire every 3 feet at the flex track joint to insure that we had no electrical problems; however, every other track joiner was left unsoldered for expansion or contraction, and the feeder wire was soldered a little further in from the rail joiner. Another thing that I try to never solder to is a crossover. In other words, only where two pieces of flex track join gets soldered.
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  • From: Sierra Vista, Arizona
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Posted by cacole on Friday, September 5, 2003 10:47 AM
One thing that should never be soldered is a turnout. If anything on the layout is going to go bad, it will be a turnout, and it will be much easier to replace if it is not soldered in place. When I wired the Cochise & Western Model Railroad Club's 20 x 40 foot HO-scale layout, I soldered a power feed wire every 3 feet at the flex track joint to insure that we had no electrical problems; however, every other track joiner was left unsoldered for expansion or contraction, and the feeder wire was soldered a little further in from the rail joiner. Another thing that I try to never solder to is a crossover. In other words, only where two pieces of flex track join gets soldered.
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  • From: Culpeper, Va
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Posted by IRONROOSTER on Thursday, September 4, 2003 5:57 AM
Lots of different ways to paradise here, personally I use a gun with heat sinks - pliers laid across the rails close to the joint. Get in fast and get out. I have an iron but never could get good results from it. One thing not mentioned above, I clean the rail ends with a wire brush chucked into dremel moto tool.
Enjoy
Paul
If you're having fun, you're doing it the right way.
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  • From: Culpeper, Va
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Posted by IRONROOSTER on Thursday, September 4, 2003 5:57 AM
Lots of different ways to paradise here, personally I use a gun with heat sinks - pliers laid across the rails close to the joint. Get in fast and get out. I have an iron but never could get good results from it. One thing not mentioned above, I clean the rail ends with a wire brush chucked into dremel moto tool.
Enjoy
Paul
If you're having fun, you're doing it the right way.
  • Member since
    July 2003
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Posted by Kent on Wednesday, September 3, 2003 8:04 PM
QUOTE: Originally posted by der5997

Picked up a 20 Watt iron at the local $ store ($1.99 Cdn) Works very well for soldering track joins etc. Bigger isn't better in this case. Will it last as long as "brand name" irons? Who cares at these prices[:)].


For that price I won't expect a long life from it. I use Weller solder iron and gun, they're both probably 15 to 20 years old and still work great. Sometimes I have the iron on for hours at a time.

The iron needs a new tip right now, but I plan to pick on up in the next day or so.



Kent Timm, author of ZugDCC for Lenz XpressNet DCC
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Posted by Kent on Wednesday, September 3, 2003 8:04 PM
QUOTE: Originally posted by der5997

Picked up a 20 Watt iron at the local $ store ($1.99 Cdn) Works very well for soldering track joins etc. Bigger isn't better in this case. Will it last as long as "brand name" irons? Who cares at these prices[:)].


For that price I won't expect a long life from it. I use Weller solder iron and gun, they're both probably 15 to 20 years old and still work great. Sometimes I have the iron on for hours at a time.

The iron needs a new tip right now, but I plan to pick on up in the next day or so.



Kent Timm, author of ZugDCC for Lenz XpressNet DCC
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  • From: Nova Scotia, Northumberland Shore
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Posted by der5997 on Wednesday, September 3, 2003 7:42 PM
Picked up a 20 Watt iron at the local $ store ($1.99 Cdn) Works very well for soldering track joins etc. Bigger isn't better in this case. Will it last as long as "brand name" irons? Who cares at these prices[:)].

"There are always alternatives, Captain" - Spock.

  • Member since
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  • From: Nova Scotia, Northumberland Shore
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Posted by der5997 on Wednesday, September 3, 2003 7:42 PM
Picked up a 20 Watt iron at the local $ store ($1.99 Cdn) Works very well for soldering track joins etc. Bigger isn't better in this case. Will it last as long as "brand name" irons? Who cares at these prices[:)].

"There are always alternatives, Captain" - Spock.

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  • From: Richardson, TX
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Posted by trollw on Wednesday, September 3, 2003 5:47 PM
I am an electrical engineer by trade (design radar systems). PLEASE, don't get a soldering gun - get a nice 35W soldering iron (looks like an old wood burning iron). It will do a much better job.

Regards,

 John

 "You are what you eat," said a wise old man. Oh Lord, if it's true, I'm a garbage can.

  • Member since
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  • From: Richardson, TX
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Posted by trollw on Wednesday, September 3, 2003 5:47 PM
I am an electrical engineer by trade (design radar systems). PLEASE, don't get a soldering gun - get a nice 35W soldering iron (looks like an old wood burning iron). It will do a much better job.

Regards,

 John

 "You are what you eat," said a wise old man. Oh Lord, if it's true, I'm a garbage can.

  • Member since
    April 2003
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Posted by Anonymous on Friday, August 15, 2003 8:48 PM
Hey, thanks for the answers, folks! Sounds like I will be happier in the long run if I don't count on mechanical joiners. Time to get a solder gun!

Actually I am not that uncomfortable with soldering, but I was just ready to move on to scenery. Don't need to make any shortcuts at this point, or I'll be frustrated in the end.

Larry
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Posted by Anonymous on Friday, August 15, 2003 8:48 PM
Hey, thanks for the answers, folks! Sounds like I will be happier in the long run if I don't count on mechanical joiners. Time to get a solder gun!

Actually I am not that uncomfortable with soldering, but I was just ready to move on to scenery. Don't need to make any shortcuts at this point, or I'll be frustrated in the end.

Larry
  • Member since
    December 2002
  • From: Pittsburgh, PA
  • 1,261 posts
Posted by emdgp92 on Thursday, August 14, 2003 3:58 PM
If you use a big gun, use a heatsink--a pair of Vise Grip pliers clamped to the rail, or bits of wet paper towel work well.
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Posted by emdgp92 on Thursday, August 14, 2003 3:58 PM
If you use a big gun, use a heatsink--a pair of Vise Grip pliers clamped to the rail, or bits of wet paper towel work well.
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Posted by Anonymous on Wednesday, August 13, 2003 3:26 PM
I also recomend using a 30 watt or so iron. All's I ever did with a big gun type was melt ties.
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Posted by Anonymous on Wednesday, August 13, 2003 3:26 PM
I also recomend using a 30 watt or so iron. All's I ever did with a big gun type was melt ties.
  • Member since
    April 2003
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Posted by Anonymous on Wednesday, August 13, 2003 8:05 AM
Solder joints especially on flex track curves with the track straight while soldering to avoid rail kinks at the joints when curved. But also leave some small unsoldered gaps in the joins for thermal expansion without buckling, using additional feeders as pointed out before.
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Posted by Anonymous on Wednesday, August 13, 2003 8:05 AM
Solder joints especially on flex track curves with the track straight while soldering to avoid rail kinks at the joints when curved. But also leave some small unsoldered gaps in the joins for thermal expansion without buckling, using additional feeders as pointed out before.
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Posted by Anonymous on Wednesday, August 13, 2003 7:54 AM
I also solder the rail joiners in much the same way as above. Solder them on the outside of the rail with lots of flux. I like the paste kind though. Solder before balasting as the glue gums up the works and makes it much harder to get a good joint. If you solder you will never get dead tracks as the joiners WILL work loose over time from train stress and warming/cooling cycles. This was even a problem on the real rails with bolted joints and was one reason the protos went to welded rail. One last note, and an import. one, use rosin core small diameter electronics solder... not pipe solder.
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Posted by Anonymous on Wednesday, August 13, 2003 7:54 AM
I also solder the rail joiners in much the same way as above. Solder them on the outside of the rail with lots of flux. I like the paste kind though. Solder before balasting as the glue gums up the works and makes it much harder to get a good joint. If you solder you will never get dead tracks as the joiners WILL work loose over time from train stress and warming/cooling cycles. This was even a problem on the real rails with bolted joints and was one reason the protos went to welded rail. One last note, and an import. one, use rosin core small diameter electronics solder... not pipe solder.
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Posted by Anonymous on Tuesday, August 12, 2003 11:58 PM
I'm assuming your soldering skills are zero or border line zero and hence your reluctance to solder. Don't be upset at this comment, until recently soldering was something else other people did. Now that I have installed one third of my layout track (about 110 feet) I am now good at soldering. After about your sixth solder attempt, and having melted 4 rail road ties, you get good at it quickly.

Here is the quick and dirty way to do it. First forget everything you have read about a clean iron and filed before you start - not necessary. The secret of good soldering isn't the solder but the flux. I solder in N scale which is even more challenging than HO. I have decided that real men solder in N...lol.

Okay. Tin your wire, which means add flux to it (I use liquid Rosen flux), put the wire end on the solder, heat the wire end, not the solder. The solder will flow into the wire (I use stranded wire). Next, some will say to tin the rail, don't do this - you could end up with a mess and it isn't necessary.

Now paint the rail on the outside with your liquid flux, tip the tinned tip into the liquid flux (prior to all of this bend the tinned wire tip so there is a 90 degree bend). Now this next part sounds hard but is easy. Put the wire where you painted the rail with flux. Puth the tip of the iron on top of rail, directly over the tinned wire touching the rail and flux. Now bend the iron down so that it touches the tinned wire. The solder will flow from the tinned wire into the rail, remove iron as soon as solder has melted, hold wire for about 5 seconds. And you are done.

More feeders is better than one set of feeders. If it were me on a 4 by 8, I would have at least 6 to 8 feeders; too many is better than not enough.

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