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Late reply but kinda relates to something I came here to ask...
I've been playing about with Mapp for a couple years now. I find it works fine with silver but I have real trouble using Sifbronze rods, just doesn't wanna melt/take to the joints I've been trying to make.
My question to @coldharbour or anyone else that cares to proffer an opinion, are oxy mapp or oxy turbo setups a worthwhile upgrade to plain mapp?
As with @Biggles567 I'm struggling to justify the expense and extra effort in sourcing bottles etc to go full oxy acet but I wanna do stuff that's out of the scope of mapp.
M_V-
Ive had a similar deal with MAPP. After a bunch of heating it gets small joints hot enough to get brass to melt. But by that point the whole thing is so damn hot i don't reckon it has any structural value at all.
I did these joints with mapp, pretty small bit that i cut off an old steel frame and mitred up super quick.
There is a fillet i guess? hah its pretty dodge, definitely not gonna replace oa any time soon.Luckily i get to play around with OA at my uni in termtime. But i cant be building any bikes there atm :(
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Oxy Propane is how I started and is a cheapish way to get going. You can pick up a full kit for about £150 if you shop around (Weldequip etc). Propane is cheap and easy to get hold of.
Acetylene is great and (in my humble opinion) is much easier to build with. I
use both in my workshop to make the acetylene last longer. Joints with acetylene and braze ons and ends with the propane.
Biggles567
Markgee
having now done a framebuilding course, im having trouble sleeping at night because all i can think about when lying in bed is "dammit i wanna do more brazing".However as any brazing I would undertake would be strictly hobbyist, I cant justify space and money needed to accomadate an oxy setup.
Having done a little bit of looking it seems that some people have success with smaller MAPP torches and silver (and brass?) for small projects (racks and such)
Has anyone here got any experience with this kind of thing? brazing/soldering with mapp?