Hi Jim, Rather odd, since it heats up the rails enough to solder, does the solder adhere to the Bus wire, if you try tinning it, without the other wire at the joint?
It sound to me that you may not be 'tinning' both sides. This is a practice where you heat a part to be soldered and melt a small amount of solder onto it. Do the same to the other part. Then put the parts together and heat the whole thing. You should find it solders together quite easily. Make sure you iron is hot enough. Hotter means a quicker job.Hi The wire I ordered has now arrived . But while I was waiting for it I thought I might have a practice on some of the wire I already had . Soldering the dropper wires to the rails seemed ok . How ever trying to solder the droppers to the bus just it would not solder. Am I not using the correct solder is my soldering iron knackered? The bus wire is some that I had for my previous layout I snipped the end off so that I had a clean piece to work with I also used my new strippers to expose the wire in the centre neither seemed to work. I am using some DCC Concepts Sapphire 179 universal I also tried some solder core wire Alloy 1mm neither that didn't work either my soldering iron is an Antex 50w it is a few years old where am I going wrong? Any help much appreciated . Jim