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I used the 'lugged bicycle construction book' and MAPP gas and made a lot of it up.
Googling MAPP gas and framebuilding just took be down a rabbit-warren of links and gets me wondering about a few things I could get done myself. If I understand well you'd use silver rod for lugged frames and it from reading it seems it's hard/impossible to get brass to flow. Would you use brass at all? perhaps in a fillet brazed frame, possibly finished with silver? or does it need to flow between the tubes there too?
Do we need a Framebuilding 'Ask any (stupid) question' thread?
Tychom-
Brass rod flows fine in my very limited experience, just heat the lugs up enough to draw it through. I did the dave yates framebuilding course and I'm pretty sure I used brass for the BB shell (the rest of it was fillet brazed).
Edit: Mind you it was a few years ago and a lot has happened since then, so I could be mistaken.
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Have added AAQ thread to the forum ;)
Tonts
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This is how I built my first frame. I used the 'lugged bicycle construction book' and MAPP gas and made a lot of it up. It was an awful bike, seat tube super slack, not straight and too big. Used it for 1000's of miles and loved it. Still have the frame and it's amazing how little penetration I had at some points, enough to be able to see even though it's powder coated!