well i am going to put a magura on my muni (which need brazing on). obviously i could take it to a shop/garage and get it done but i saw in halfords i can get a Bernz o matic brazer (it also cuts, welds etc) from halfords for £40. so i would be able to mount it myself and also have the brazer for future frame designing/general use.
i was just wondering does anyone know how hard/easy it is to braze? i have got some old metal to practise on before i try to mount the magura.
I've done a fair bit a brazing, mostly using Oxy-Aceteline. A propane torch should braze OK but it wont pump out the heat very quickly so you might end up warming up more metal than you'd like. I've not tried with just propane so I'm not 100% sure how well it'd go.
As for brazing up a whole frame, of course you can. All bikes were made this was until welding started to take over in the 90s. If you use thin walled tubing (which you will) then the brazed joint will probably be the strongest point. It's a great manufacture technique for unicycle frames.
I've got a book about brazing that you are welcome to borrow if you are passing through Roath.
