Automatic variable trace width for easy diy print manufacturing with cnc machine

[conducteur]

Hello,
I have a cnc-mill and a use the machine to make pcb's. I design them with the EAGLE software.
I can make simple pcb's, but complex pcb's with more (fine) traces and smd parts are harder to make, and sometimes i fail to make them, but i think there's a solution for my problem.
After i finished routing a project in eagle, can eagle make the traces bigger where there's enough space for it? Is there any ulp that can do this?
Milling 0.6mm traces is quite hard with my machine, but it will be a lot easier if eagle can make parts of the traces  1-1.5mm. I would get better results when this is possible.