Eccentric Roughing

Eccentric turning cycles are used to machine features whose axis is offset from the main spindle axis (eccentric diameters or shoulders). The cycle automatically manages the radial offset, tool approach/return, and synchronized spindle motion to generate a precise toolpath around the eccentric center. Use it to rough and finish off-center features efficiently while maintaining correct clearances and collision safety.

Key Points

Automatically generates safe, optimized toolpaths for off-center features by managing radial offset, synchronized spindle motion, and approach/return moves.

▶️ Watch a video showing and example of the application of this cycle:

Strategy Parameters

Dialog Area	Parameters
Toolpath	Cycle type	Imaginary nose Number
Toolpath	Toolpath
Machining Strategy	Pitch	Scallop
	Y Axis	Pass Depth
	Lead out Overlength	Lead in overlength
	XY Stock allowance	Z Stock allowance

Movement Parameters

Dialog Area	Parameters
Approach and Return Characteristics	Safety distance

Technology Parameters

Dialog Area	Parameters
Cutting Conditions	Quality	Specific coolant
	Spindle speed	Coolant number
	Feedrate in Z
Tool Numbering	Tool number	Specific Number
Tool Numbering	Radius compensation number	Length compens. nb
User information	Comment	Control Device
User information	Machining Set

Options Parameters

Dialog Area	Parameters
Management of collisions	Gouge check on stock	Offset XY
	Safety Area	Offset Z
	Safety distance in Z for rapids	Safety distance in X for rapids
Curves Computing	Curve Tolerance	Curve explode into