We propose a novel method to generate 2.5D CNC milling toolpaths that have characteristics designed
for reducing energy usage. The energy consumed in multi-axis CNC milling is a function of the toolpath,
component geometry, CNC machine construction, and the tool (cutter) itself. In this work, we focus solely
on the toolpath geometry and propose a new method that, when all other factors are held constant, can
result in toolpaths that require less energy for milling out the same pocket geometry. This strategy is
based on selectively relaxed vector fields, specifically designed for the component to be machined. Pilot
results comparing a toolpath generated using the proposed strategy to those generated using commercial
CAM software indicate the potential for substantial savings in energy usage