Does anyone have a formula to calculate the length of the arc described by a movement of a single G1 command involving the X, Y, Z and A axis?
I'd like to compensate the Feedrate to keep a constant speed on the surface of the milled object (with a maximum Feedrate in case the tip of the tool doesn't move è. G. While moving around a sharp corner)
This is for
https://code.google.com/p/simplemultiaxiscam
My simply 4 axis CAM program.