A visit to Makino Cycles keirin frame workshop

[fiamme red]

https://www.youtube.com/watch?v=yTKoNlE6cUM

Interesting to see the framebuilder tapping the lugs.

[roguedog]

Interesting. Wonder why.

Also, man that seems like tight quarters to work in with 3 or 4 others all working on noisy tasks. It looked at one noisy and kinda lonely since they all had on noise protection headphones.

[chismog]

Whatever they use it for, seems like it is an integral part of their build process. That hammer looks well used.

[oldpotatoe]

Originally Posted by fiamme red

https://www.youtube.com/watch?v=yTKoNlE6cUM

Interesting to see the framebuilder tapping the lugs.

Pretty typical of a lot of small, Japanese artesian workshops. Saw a few when I lived in Japan..real estate and $ at a premium. Interesting they they know where everything is too.

I think tapping to ensure brazing material 'flows' where he wants it. I kinda do a similar thing when tying and soldering spokes..to make sure the solder gets 'inside' the wrap.

GREAT video...

[unterhausen]

He's tapping to get the edge of the lug to lay down where he wants it. Some of the Hirose videos show this better.

I think that space would drive me nuts. I need a window. Hirose had a much nicer space, and he worked alone.

[jojobos]

Nice video! Here is Nagasawa's workshop.

https://youtu.be/6VQhNHa69JU

[Doug Fattic]

Originally Posted by roguedog

Interesting. Wonder why.

unterhausen is of course correct. Both lugs and tubing are imperfect and taping them together while the brazing material is molten closes gaps and provides the basis for clean shorelines (no brass or silver peeking out beyond the lug). Also the lug angle may be different than the frame angle and has to be persuaded to change. We used to use a hammer at Elis Briggs where I learned to make a brass braze joint fit better. I'd have a torch in one hand and use my other to pound away.