This program designs model lines for violin, viola, and cello using clothoid curves. Just enter the desired instrument size and curve parameters to complete the line.
Summary
In order to solve problems such as the complexity and uneven curve of the existing violin design methods, I developed an automation program that uses the clothoid curve. Set control points for each important point of the instrument, and connect two adjacent control points with three clothoid curves (referred to as 'multiclosoid curves' in this manual) to complete the design.
A total of 8 multiclosoid curves are used by 9 control points (24 clothoid curves), and the shape and size of the design can be changed by adjusting the position of the control points and the option values of the multiclosoid curve.
The finished design is displayed on the monitor screen and automatically saved as PDF, DXF, and TXT files at the same time. The automatically saved file includes not only the design, but also the size and proportions of each part of the instrument, and option values for curves, so it can be useful for future analysis.
Usage
This program is used to design the form for violin, viola, and cello. You can also draw the outline of the plate to match the completed form design. The design results displayed on the screen or automatically saved PDF or DXF files can be printed and used immediately in instrument making.
Function
The function of this program can be divided into three major categories: drawing, output, and analysis, and each item has the following functions. ( For details, refer to the user's manual )
Drawing
⃝ Automatic design processing using multi-clothoid curves
⃝ Drawing only by inputting the instrument size and curve option value
⃝ Automatic setting of graph axis and size according to instrument type
⃝ Automatic calculation of corner width
⃝ Provides initial values (templates) for each instrument
Output
⃝ Screen output
⃝ Automatically output PDF file
⃝ Automatically output DXF file
⃝ Automatically output the result of the design as a TXT file
Analysis
⃝ Show curve parameters used in design
⃝ Display the value for each part
⃝ Display the ratio for each part
Install
Since this program is a portable version, no installation work is required. After unpacking, double-click the 《Violin_Designer_v.X.X.X.exe》 file in the 《Violin_Designer_v.X.X.X》 folder to run the program immediately. However, it may take a long time to run depending on the specifications of your computer.
When installing and executing the program, pay attention to the following points.
Run as administrator
If the 《Violin_Designer_v.X.X.X》 folder is in the Windows system folder such as ‘Program Files’ of C drive, you must ‘run as administrator’ when running the program. Otherwise, it may not work properly, or PDF, DXF, or TXT files may not be saved properly.
Windows security settings
When unpacking program files, ‘Windows Security’ may automatically delete some files for reasons such as suspicious files. In that case, you have to decompress the file again after de-isolating the file in the Windows security settings. This program does not contain any viruses.
View user's manual
Download program and user's manual
Can it be reprogrammed for a catenary curve?