https://forums.autodesk.com/t5/machining-discussions-forum/thanks-and-more-questions-on-tool-deflection/m-p/6097056#M8412 I think that you can take best results with a bigger tool or decrease the spindle speed. <BR />Are you using a small tool with a hight of tool too hight. How much hight is a tool in small tools, less spindle you have must have.<BR /><BR />hope that helps. Thu, 22 Jan 2015 11:57:50 GMT Anonymous 2015-01-22T11:57:50Z