If any of these parameters are set, set the Direction parameter to 'Inside Out', as the tool cannot perform a helical or zigzag approach starting from the boundary.
Strategy - Select how the tool is to approach the work and start each level and region within the cycle.
Plunge - The tool simply plunge feeds to depth at the start point of the cycle.
Helical Ramp - The approach is a spiral move down into the material, specified by a Pitch and Radius. Only available if Direction is NOT set to 'Inside Out'.
Zigzag Ramp - The approach is a series of linear ramp moves into the material, alternating directions with each move. Each ramp move is at a specified Length and Angle (with respect to the XY plane). This is a good strategy for hard or semi-hard materials, but is only available if Direction is NOT set to 'Inside Out'.
Lead In Fixed - The approach is a plunge feed down into the material at one or more specified points (used with predrilled holes). One point should be nominated for each region.
Adjust to Fit - If the Adjust to Fit box has not been checked, the cycle will not attempt to produce a toolpath at any level where the approach move gouges the profile. If the Adjust to Fit box has been checked and the system detects a gouge, the approach is altered. The type of alteration depends on which Approach Strategy was selected for the cycle. When the Strategy is Helical Ramp or ZigZag Ramp, the cycle reduces the zigzag length or helix radius to a value that avoids gouging. If the length is reduced below 10% of the tool diameter, the tool will simply plunge feed to depth at the cycle start position. When the Strategy is Fixed Lead In, if the nominated point is outside the region, the cycle will simply plunge feed to depth at the cycle start position.
Radius - Specifies the radius of the helical move (when no value is entered, this defaults to 90% of the tool diameter).
Step Angle - Specifies the angle between endpoints of the linear helix moves in plan view (when no value is entered, this defaults to 30°).
Pitch - Specifies the distance travelled in Z for one complete turn of the helix.
Length - Specifies the length of the ramp move in the plan view (when no value is entered, this defaults to the tool diameter).
Angle - Specifies the angle the tool moves down the ramp (minimum angle = 0.5 degrees).
Angle In/Out*- The angle the tool moves down the ramp.
Radius In/Out* - The radius of the helical move (when no value is entered, this defaults to 90% of the tool diameter).
Length In/Out*- The length of the ramp move in the plan view (when no value is entered, this defaults to the tool diameter).
*These approach parameters are only available when the Areaclear Strategy is set to External Boss.