This is a demo that Mastercam put together to show off their Dynamic Milling Capabilities.  We ran this at 240 Inches Per Minute, .5″ Deep with a 7% Step Over in HURCO VMX42i.  We ran the same demo on a competitors machine and were only able to feed at 180 Inches Per minute due to chatter.   Thanks to Mastercam and HURCO Ultimotion, the part looks fantastic and shows no chatter marks at the transition points.