All mitred up, i made a pretty shonky jig, clamping th BB shell to the (relatively) flat welding table, i figure out my centre line and went from there, using some tube blocks (found a 32mm holesaw, very convenient for my 31.8 tubes) and other bits of scrap flat bar to get the tubes in the right place :
All mitred up, i made a pretty shonky jig, clamping th BB shell to the (relatively) flat welding table, i figure out my centre line and went from there, using some tube blocks (found a 32mm holesaw, very convenient for my 31.8 tubes) and other bits of scrap flat bar to get the tubes in the right place :
tacked it all up:
might make the headtube a bit shorter on the top.