I don't know the first thing about tailoring, but I do know about knives and sharpening. That's why I made a chalk sharpener for my beloved to make her hobby easier. The sharpener allows you to achieve a very refined edge, allowing you to draw thin, precise lines on fabric. It's very easy to use, and the PETG material is water-resistant, so it's easy to clean.

Of course you can use PLA to print without any problem.