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I have added a feature that allows you to design while viewing an uploaded photo, along with an import/export function for settings.

This software automatically generates Stradivari-style arching profiles based on the plate width and height (thickness) defined by the user. The generated profiles can be printed to create physical arching templates.

Many luthiers attempt to reconstruct the Stradivari arch, but with its constructive principles remaining unknown, they are limited to mere imitation. This report presents a method to systematically reconstruct the Stradivari arch using trochoid curves. Furthermore, this study presents a method to generate a Stradivari arch of any specified width and height for practical application in instrument making.

A description of the geometric design method of the neck that can be generally used for violin, viola, and cello.

To see changing color when wood is exposed to UV light. Experiment up to 600 hours in 100-hour increments to find the most suitable time.