There is no one-size-fits-all answer to this question, as the best way to learn how to pattern cut according to your fashion design illustrations will vary depending on your individual learning style and needs. However, some tips on how to get started include:
-Taking a class or workshop on pattern cutting specifically designed for fashion designers.
-Working with a pattern cutter who can help you learn the basics and customise techniques to suit your designs.
-Studying existing patterns and garments to learn how they are constructed and how to replicate various silhouettes.
-Practising at home with basic block patterns to start understanding the process.
Of course, the most important thing is to simply get started and have a go! There is no substitute for experience, so the more you pattern cut, the better you will become at it. With time and practice, you will be able to create any design you can imagine.