We’re moving right along with the first frameset. The bottom bracket and seat tube are stuck together, and the BB shell (eccentric) is drilled out and has binder bolts affixed. I don’t have any pictures of that, currently.
This weekend, I did attach the head tube and down tube to one another.
Look at that sexy join. That’s a hand-filed miter, kids. And the opposite side is just as tight. That’s a file, a protactor, and a lot of frigging patience. But you know what? I love doing it, and I think hand-filing is the way to go. I don’t think I’ll ever bother milling — not even when I start working in titanium.*
So yeah. It’s been going pretty good so far. That’s the end result of the brazing shown there. I was quick enough and careful enough with my heat where it didn’t pull when it cooled unevenly, and the end result is that the angle is spot-on. It’s not at the stage where I need to file/finish the joint yet. That happens when the frame finally comes together completely.
Also done this last weekend: dissection of a steel tandem frame that was rusting from the inside out. It was a very enlightening view of the need for large, well-done vent holes and the need to clean leftover silver flux (corrosive) out of the frame.
During the week this week, I need to take an inventory of the parts I have so I can figure out what I still need to order to finish the build. I think all I need at this point are the hubs and headset (Chris King for both), and that should be it. I also need to track down a painter. There are a couple of options here in the Twin Cities, so I can figure something out.
Next week, I’ll be joining the down tube to the bottom bracket/seat tube combo, and time permitting, I’ll be sticking a top tube in there, too, and drilling out the holes for the cable routing.
* Probably not until late 2011.