Working paper piano / действующее пианино из бумаги
The model is completely made of paper and cardboard. It uses the same (but simplified) principle as the prototype. Strings are made of paper strips, tension mechanism is like one in guitar, using worm-gear (worm is made of paper, gears - from cardboard). Soundboard is combined with stiffness frame and made of cardboard enforced with stiffening ribs. Hammers - from paper and cardboard, dampers - from rolled up paper napkin, keys - from paper. Body is made of cardboard and painted.
Build process is described here:
Модель полностью изготовлена из бумаги и картона. Используется тот же (но упрощенный) принцип, что и в прототипе. Струны сделаны из бумажных полосок, механизм натяжения “гитарный“, с использованием червячного механизма (червяк сделан из бумаги, шестерни - из картона). Дека комбинированная, выполнена вместе с рамой жесткости, изготовлена из 2,5 мм картона и усилена ребрами жесткости. Молоточки - из бумаги и картона, демпферы - из свернутой бумажной салфетки, клавиши - из бумаги. Корпус изготовлен из картона и покрашен.
Процесс сборки описан здесь:
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