Joined: Feb 2012
Posts: 19,381
Likes: 5,527
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Ed gives good advice. I'll add that yes, brazing adjacent to another joint with the same or a lower melt point of it's filler can be challenging. Part of the skill is reducing this.
I will braze the seat tube to the shell and then prep the rest of the main triangle to braze that together. I find this helps insure BB shell alignment and when I use brass for the ST/shell socket and silver for the DT and chain stays there's zero issues with filler melt out at the ST. I use this same method of different melt points fillers for other areas as needed.
If you're near me (Rochester NY) feel free to contact me directly or visit. Andy
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AndrewRStewart