Free pattern for a 15 inch briefcase from okiemo-leather.
The main part is leather 2 mm, pocket 1 mm.
The thread is 1 mm.
Before you express your indignation at me that I posted your pattern, file an industrial patent for your pattern. Almost all patterns have a commonly used solution or are shamelessly copied from normal manufacturers.
Free pattern for a 15 inch briefcase from okiemo-leather.
The main part is leather 2 mm, pocket 1 mm.
The thread is 1 mm.