Anonymous asked: Hi Tom, saw your brazing pictures, how are you getting on with the oxy/propane set up? Just considering a similar set up.
I’m getting on with it OK. Main difference I find is the outer flame is a lot hotter than acetylene which makes it trickier for capillary brazing. Works OK for fillets but you need to be careful with how the outer flame gets to places while your focused on the fillet and can get stuff hot unintentionally.
I use a paste on flux and getting clean pin hole free fillets is taking some practice and I still don’t if this a problem with me, propane or the difference to the last set up I used. The few courses I’ve done are on an acetylene torch with inline flux and came out a lot cleaner.
Main advantages are cost and safety for me but I’m considering looking into acetylene as I’m feeling more confident with cylinders and checking the lines etc now.
That all said i’m miles away from being able to talk about this with any kind of authority though so would recommend speaking to The Bicycle Academy as they use propane quite a bit and have tons of experience or popping onto velocipede salon as there’s a long thread on propane by some really experienced builders.