Illustrator file preparation for CNC / digital milling
Hi everyone,
I’m a graphic designer and I’m currently learning about signage production. I mainly use Adobe Illustrator, and I’m trying to understand the correct workflow for preparing a file that will be sent to a CNC router / digital milling machine (fraiseuse numérique).
For example, if I want to make letters or a logo from Forex, Plexiglass/acrylic, MDF, or Alucobond, how should I prepare the Illustrator file?
I’m especially confused about:
Should the artwork be filled shapes or just strokes/paths?
Should I use Create Outlines for text?
Do I need separate layers for cutting, engraving, drilling, etc.?
What file format is normally preferred: AI, DXF, EPS, SVG, or PDF?
Is Illustrator only used to create the vectors, with another CAM software being used to generate the toolpaths?
Are there specific Illustrator settings I should follow before sending the file to the CNC operator?
I’d really appreciate it if someone could explain the proper workflow from Illustrator → CNC software → machine, preferably with an example for making letters from Plexiglass or Forex.