Realized
Imagined:
Realized:
Next steps — Build it up(they knobby rear tire isn’t staying) and ride it, then build a rack for it. Alistair helped me with alignment today and took a few photos too. The framebrazing is done except for a couple of water bottle bosses and whatever other brazeons I realize that I forgot.
We measured the angles today, around 71.5 seat tube angle and 73.5 for head tube angle. Fork offset is around 30-35mm (this is a fork from a Bike Friday Family Tandem) giving a trail of about 35-40mm and flop of about 10-11mm. Right in the ballpark.
Hi Alex:
Congratulations – your frameset is looking great! This is a true DIY triumph. I can”t wait to see it assembled.
James Black
Nice! Them”r some fancy mitres! Thanks again for documenting all this, it’’s fantastic to see the process you”ve gone through.
Looks great!! How did you resolve the DT – BB shell question?
The original DT was cut out and the weld was cleaned up as much as possible. There is still a tiny sliver (cresent moon shaped) of DT welded to the bottom of the seat tube.
The new DT comes in at a shallower angle and a little (~2mm) below the original DT’’s cresent moon.
When I brazed in the new DT I filled the whole area between the old and new with brass. I think it looks pretty good:
http://alexandchristine.smugmug.com/gallery/5107556_tDdQU#326962975_GmZoG
I feel pretty confident with it structurally, but I am curious to see how it holds up. The DT/HT/Cargo Tube junction was actually harder, just because there was a compound miter and a very shallow angle between the DT and cargo tube.
Whoa! You could totally fire bottle rockets out of that thing. Better yet, a Roman candle.
Nice bike.
I think you have some potato cannon potential. It would be useful for expressing disapproval in certain situations where cars are hazardous to the cyclist.
What a beautiful mess.
It will be cool to see what kind of front rack you put on it.
Congrats!