Delcam (Birmingham, U.K.) is introducing at IMTS (Sept. 13-18, Chicago, Ill.) the 2010 version of its PowerMILL CAM software. The new release improves user productivity by extending the application of the latest background-processing and multi-threading technologies available in recent hardware. The combination of these two developments is estimated to reduce calculation times by up to 25 percent. The most obvious change for existing users is an update of all toolpath-creation forms to a new and improved layout. The forms make it simpler for new users to find the commands they need, while also giving experienced operators more logical access to the more advanced options. In addition, there is new toolbar for faster and easier creation and editing of workplanes. Other features include a new series of strategies for roughing and finishing corners, enhancement of rest roughing to give better control over the start points for each segment of the toolpath, and improvements in offset roughing so that thin slivers of material that may damage the cutter are not left for the final pass. Several improvements also have been made to provide smoother toolpaths for semi-finishing and finishing. Finally, constant-Z toolpaths have been enhanced to include the detection of flat areas and the automatic insertion of extra Z-levels to machine these exactly.