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Re: Asking for an equation
Warren Isaacs Jun 1, 2012 9:45 AM (in response to Can Onel)Hi Can
I think you need a prolate cycloid, which is defined by a point outside a circle rolling on a line.
The diameter of your circle  which would be theoretical and NOT your tool diameter  would be a function of the RPM and the feedrate. In your example, this theoretical circle "rolls" 300mm for 3000 revolutions, i.e. 0.1mm per revolution. Thus, its circumference must be 0.1mm and its diameter 0.1/pi mm.
Regards
Warren

Re: Asking for an equation
Chris Michalski Jun 1, 2012 10:26 AM (in response to Can Onel)Can 
I believe this is what you are looking for. The x,y position of that point on a stationary rotating tool is a simple sine/cosine function  then add in the relative xmotion of the axis as a function of time. I used a slower RPM because otherwise the graph gets really dense.

cutter motion.pdf 14.8 KB
