If you're cutting the box from sheet material, then this really is a 2d machining job.

From memory, MeshCAM is designed to work with STL files for 3d jobs and its capability is pretty limited for 2d work, so in my opinion, is not ideal for this particular project.

I use CamBam as my main CAM system, which would be a good choice in this instance, as it has an edge treatment for corner rounding built into its 2d Profile Machining Operation and would make it much easier to do.



Martin (2).