This is where it starts. Miter the ST to the BB and build on from there.
I opted for the proven 71 degree ST angle.
Front triangle mockup
After some careful measuring and filing, the front triangle was mitered up and ready for tacking.
This was the trickiest tube junction to get right. I opted to raise the seat stays slightly to make then clear the top tube in order to avoid "sandwiching". Hopefully this results in a stronger joint.
Seatstays nicely mitered to fit on the seat tube.
Another tricky miter due to the external butting on the BB.
Scalloped out the CS where it meets the dropout.
Made a matching scallop on the seat stays.
Caps made from recycled crumbly tubing brazed on and smoothed out.
Capping on the CS meeting the dropout.
BB/ST/DT brazed. This was a fun join to braze.
Finished dropout after brazing. Still not 100% cleaned up.
The finished frame. Still no paint or surface protection applied.
It takes a long time to smooth out fillets.
My favourite feature on this frame - the caps on the stays.