Side-track = tuning bellows. They are a little easier than “real” bellows, since there is no reed pan inside, hence no need for the “inner angles” - the tapered side of the bellows frames. Here’s a few glimpses from the process:
![IMG_1738_2](files/img_1738_2.jpg)
Mixing water-flour-glue size, for gluing the long cotton tapes around the peak of the folds. Two other types of glue are used: ordinary PVA for hinges and Fiebing’s Leathercraft Cement for the gussets.
![IMG_1741_2](files/img_1741_2.jpg)
Gussets in place.
![IMG_1753](files/img_1753.jpg)
Done - no original bellows paper were hurt during the making of this ;-).
I used cheap wrapping paper...
![IMG_1658](files/img_1658.jpg)
Then clamp and rest (not the tuning bellows).
Note that the clamp doesn’t simply add pressure to the edge of the frames - it compresses that which can be compressed = the folds. Inside the clamp is another six-armed thingie which the folds are pressed against.
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