Sunday, July 13, 2008

BB/Seat tube joint.

Today, got my bb/seat tube junction done.Was fun and kinda stressful, but cleaned up really well and am very happy with it.




Post braze and soak


Cleaned up and ready for next joint

Got my new hitachi hammer drill in the post a week ago, man its nice, and quick to get the mitres done now.
Had a super brazing session last week, blew through one of those cheap fuller holesaws in about 5 cuts!But have got the bacho ones now which seem better made and cut better also.
So I did about 4-5 joints in quick succession and really got a handle on the technique for building those nice big fillets.
Found a great tip on the frame forum the other day, grind the outside of the holesaw to get rid of the offset teeth that stick outside the diameter of the main body for a cleaner cut, it works really well.
Theres a heap of great info on that site if you need to know what the pro's are doing its all there for everyone to see, really is a great site for trolling info.Have spent alot of time there lately!

Think I need to have more heat in the tinning pass but the fillet turned out really well, still had the internal micro fillet coming up the back side of the joint which was is good to see.
Think I even got it pretty square and straight!!


Hmmm okay gotta head off, but next comes the big tube squash, have to squash the TT from 44.5mm to 35.6 so I can mitre and braze it to the head tube, should be fun!

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