In the master’s thesis, we developed a parametric model of an electric guitar in Autodesk Fusion 360, in which key dimensions can be modified directly in a parameter table – such as scale length, number of strings, number of frets, fretboard radius, neck profile and thickness, etc. – whereupon the model automatically updates and generates a new shape or configuration without manual intervention in sketches or features. The methodology included the design of a parameter table, sketching and modelling with multiple commands, the use of control curves (Bézier) for neck shaping, and analysis of surface continuity and transition quality (zebra analysis). The model was tested on multiple configurations (various scale lengths, 6–8 strings, neck angle, fretboard radius and variations in body thickness), with the fretboard, neck and body geometry adapting consistently in most cases without model failures. Identified limitations include occasional loss of reference links in the CAD system during large geometric changes, which was easily resolved by reselecting the appropriate reference surfaces, edges or points. The model represents a stable basis for further development, particularly for integration with CAM processes, and demonstrates that parametric modelling contributes significantly to adaptability, repeatability and efficiency in designing custom instruments.
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