Let me introduce you to Sides Bending Jig Machine.
In this video you will see the first test of the arpeggione side-bending jig.
According to the principle of production all modern guitars are divided into three classes.
👎 In the first, cheapest ones, both sides and sides are made of plywood.
👌 The second, more professional, has a natural wood top soundboard. But the sides and back soundboard are still made of plywood.
👍 And only the most expensive and professional guitars and custom guitars have sides and back soundboard made of natural wood.
❓ How is natural wood better than plywood?
✅. First of all, because plywood is glued from several thin layers of veneer. And when it vibrates, part of the sound energy is lost in the glue.
✅ Secondly, the layers of veneer in plywood are arranged in different directions, for strength. And the resulting material is closer in its properties to composite materials than to natural wood. And to date, nothing better than wood to make musical instruments has been invented.
✅ Third, only natural wood undergoes changes in its microstructure over the years. And these changes lead to a better sound. We’ll talk about this later in detail. You’ve probably heard more than once that the guitar is played. And you probably have experience playing guitars, even electric guitars that are many years old. So that’s exactly the point. And each wood sounds different. For stringed bowed instruments it is common to use maple for the sides and back board. It comes in different varieties. Often wavy maple is used. It has a different sound than straight maple. Mahogany, rosewood and other valuable and rare woods are also often used in the manufacture of guitars. The timbre of the instrument directly depends on the body material. Namely the sides and the back board. In order to bend the billet the shells use heaters and specialized bending machines. I developed my own model for our manufacture. And today we tried it out. The process looks like this: wetted wood is put into a mold, bent and dried under the action of heating elements. The temperature of the heater is over 100 degrees. It’s a long process. However, it is the only way and the only way to get a better sound. I plan to make our arpeggione both from the classic bowed wood, maple, and experiment with other materials. Such as rosewood, walnut, mahogany, pao ferro. They have proven themselves in guitar making.
☘️ And also natural wood is an eco-friendly material. And it is not harmful to health. Unlike plywood, which emits glue fumes into the atmosphere.