I made front noise to attach BB shell.
At first, each edge were cut.
Then tacking and welding.
Next, BB shell were welded.
I checked the space between crank and frame. I tried to these spaces were equal. At that time, the center of BB shell moves to chain wheel. I'm not sure, whether that's right.
The BB shell were mounted on the nose.
To save the thread, I screwed in the other parts of cup and corn.
Then welded.
Always cleaning is needed after welding. It takes time.
The edge of front noise was closed like this.
Then sanded. I should sanding instead of cleaning !
The upper part of drop outs were flatten.
I checked where drop outs should be welded, then I noticed my big mistake.
The width of hub is 135 mm. I designed for 130 mm !
I cut the front part, then welded again. So the surface isn't flatten. I mind the stiffness.
At first, each edge were cut.
Then tacking and welding.
Next, BB shell were welded.
I checked the space between crank and frame. I tried to these spaces were equal. At that time, the center of BB shell moves to chain wheel. I'm not sure, whether that's right.
The BB shell were mounted on the nose.
To save the thread, I screwed in the other parts of cup and corn.
Then welded.
Always cleaning is needed after welding. It takes time.
The edge of front noise was closed like this.
Then sanded. I should sanding instead of cleaning !
The upper part of drop outs were flatten.
I checked where drop outs should be welded, then I noticed my big mistake.
The width of hub is 135 mm. I designed for 130 mm !
I cut the front part, then welded again. So the surface isn't flatten. I mind the stiffness.
