Streamlining toolpath programming with CAD/CAM and NC simulation software packages can greatly boost productivity for most manufacturing operations. To alleviate significant programming bottlenecks, machine shops are finding innovative ways to speed the process of NC programming for machine tools. CAD/CAM developer Delcam PLC has conducted tests on toolpath programming strategies in its PowerMILL CAD/CAM package, showing reductions in calculation times of three to four times when performed on multicore systems, when compared to earlier versions on a single-core PC. With parallel processing or multithreading capabilities added in PowerMILL 10, programmers save time by performing different parts of the calculation at the same time. NC simulation software such as the Vericut 7.1 NC simulation/verification/optimization package from CGTech Corp potentially can take great advantage of multicore CPU-based systems. NC program simulation software such as Vericut can heavily tax a computer's major systems, notes Bill Hasenjaeger, CGTech product manager.