Either torch or iron will work.
Look round a meeting where scratch builds are raced, just about everybody has a soldering iron and there are few if any torches to be seen. Could be that's something we can learn from the experts.
You need a big enough iron to heat a chassis, ordinary electronics size irons won't do.
What sort of chassis are you planning? Heavy plate chassis need a bigger iron than lighter ones, but a good big iron is a sound investment that'll work on everything.
people use either, but rarely both.I only use flame ....however more commonly overlooked is the importance of using the correct flux . cleaning techniques, heat sinks etc.
There are many tutorials on soldering available.It really isn't rocket science , so give it a go and learn from any mistakes you might make ( I hope they are few)
It really wont take long to get proficient at it.
Really depends on what kind of chassis you're doing.
I mostly do brass tube/rod and piano wire types, along with some not too thick brass plate. Much prefer an iron, just because that's what I'm used to - also because it's easier to direct heat to specific joints. My iron is a variable JBC with top temp of 400° - not really powerful enough (35 or 40W I think), but because it has a wide tip it does the job.
If you're doing something like soldering together more modern spring steel chassis, then a torch would probably be a good idea. But you'd also need some kind of iron for electrical work.
And like the man says, what's really important is clean parts and good flux!
A forum community dedicated to slot car owners and enthusiasts. Come join the discussion about collections, racing, displays, models, track layouts, styles, reviews, accessories, classifieds, and more!