The camworks.ttf file bypasses this limitation through a clever technical workaround:
Characters are constructed using single stroke paths rather than outlines. camworks.ttf
When you post-process G-code or generate a setup list, CAMWorks needs a way to display standard machining symbols (like the counterbore ⌴, depth ⌵, or diameter ⌀ symbols) without relying on your OS’s generic Unicode support. The camworks