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![Software :: [Update] Catenary Curve Generator, v.3.2.1](https://static.wixstatic.com/media/927c1e_0e311564ea6043a18b3d48a05d83063c~mv2.jpg/v1/fill/w_333,h_250,fp_0.50_0.50,q_30,blur_30,enc_avif,quality_auto/927c1e_0e311564ea6043a18b3d48a05d83063c~mv2.webp)
![Software :: [Update] Catenary Curve Generator, v.3.2.1](https://static.wixstatic.com/media/927c1e_0e311564ea6043a18b3d48a05d83063c~mv2.jpg/v1/fill/w_368,h_276,fp_0.50_0.50,q_90,enc_avif,quality_auto/927c1e_0e311564ea6043a18b3d48a05d83063c~mv2.webp)
Software :: [Update] Catenary Curve Generator, v.3.2.1
Some bugs have been fixed.

Hwang, Il-Seok
Sep 13, 20221 min read
![Software :: [Update] Violin Designer, v.2.5.1](https://static.wixstatic.com/media/927c1e_c5f6a2da6bd8432199666a44b8725749~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/927c1e_c5f6a2da6bd8432199666a44b8725749~mv2.webp)
![Software :: [Update] Violin Designer, v.2.5.1](https://static.wixstatic.com/media/927c1e_c5f6a2da6bd8432199666a44b8725749~mv2.png/v1/fill/w_368,h_276,fp_0.50_0.50,q_95,enc_avif,quality_auto/927c1e_c5f6a2da6bd8432199666a44b8725749~mv2.webp)
Software :: [Update] Violin Designer, v.2.5.1
Some functions related to corners have been added/changed.

Hwang, Il-Seok
Aug 31, 20222 min read


Software :: Stiffness Calculator, v.2.0.0
This program calculates the stiffness and sound velocity of the material using the three resonant frequencies of the violin material.

Hwang, Il-Seok
Aug 14, 20223 min read


Note :: Measuring the Sound Speed in Wood : Without a Lucchi Meter
This is a description of how to measure the speed of sound of a material using only earphones and a computer without a Lucchi meter.

Hwang, Il-Seok
Jun 11, 202211 min read


Video :: How Much Shellac Should I Put In?
This is a short video introducing a program that calculates the required content of each ingredient based on the ratio of the varnish recipe

Hwang, Il-Seok
May 20, 20221 min read
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