The Global Parameters section allows you to set the tolerance value to be used in machining.

•Tolerance
This is the allowable deviation from the actual part geometry plus the Stock layer (if any).

How to Increase Tool Path Accuracy

The Location of Cut Geometry can be set to At Top (top Z level), At Bottom (bottom Z level) or Pick Top (specifying the Z location) by entering a Z value location or by selecting the pick button and selecting the point on the part.

At Top

This uses the Z location of the selected Machining Feature/Region as the top of cut. The generated cuts will start at this Z location and cut down in Z to the specified total cut depth. At Top is typically used when you select the top edge as your machining region. Feature/Region at Top Feature/Region at Top - Toolpath

At Bottom

This uses the Z location of the selected Machining Feature/Region as the bottom of cut. The generated cuts will be above the selected machining region and last cut would be at the Z location of the specified region. At Bottom is typically used when you select a pocket bottom at your machining region. 2½ Axis Facing Operation Examples: Feature/Region at Bottom Feature/Region at Bottom - Toolpath

Pick Top

This allows you to specify the Top of Cut for the selected Machining Feature/Region and is typically used when the selected region is not at top or bottom. The generated cuts will start at this specified Z location and cut down in Z to the specified total cut depth. This would be useful when the selected machining region is at the bottom edge of a fillet or chamfer. When two or more curves are selected as Machining Features/ Regions, and using Pick Top for Location of Cut Geometry, sets the Top of cut for all regions at the same Z level. 2½ Axis Facing Operation Examples: Feature/Region pick Top Feature/Region pick Top - Toolpath

Dole Depth (H)  

Enter the Hole Depth (H) for the hole pocket operation.  It is calculated from the location of the cut geometry selection.

Hole Depth (H)

Hole Diameter (D)  

If points were selected as your control geometry, specify Hole Diameter (D) for the Hole Pocket as shown in the illustration below.

Hole Diameter (D)

Select Climb (Down Cut) and the tool will be maintained in a downward motion into the stock.

Climb (Down Cut)

Select Conventional (Up Cut) and the direction of the tool will be maintained in an upward motion out of the stock.

Conventional (Up Cut)

Understanding Climb vs Conventional Milling

This defines the spacing at different levels of the cut.  Select from one of the following options:

This allows you to set the Stepdown Control (Dz) distance for the current operation as a percentage of the active tool selected for the operation.  Select % Tool Diameter and then enter the percentage value in the field provided.

Stepdown % Tool Diameter

You want to specify the exact Stepdown Control (Dz) for the Hole Pocket.  Enter the stepdown in the Distance field provided.

Stepdown dZ=Distance

Control the Stepdown Control (dZ) distance by entering the total Number of Levels in the field provided.  The distance between cut levels will be calculated for you.

Stepdown dZ=# of Levels

Check this box to automatically insert a corner Cleanup Pass at each Z Level cut.  These are the arc motions shown in blue in the figure below.

Cleanup at Each Cut Level

This defines the spacing between the cuts.  Select from one of the following options:

This allows you to set the stepover distance for the current operation as a percentage of the active tool diameter.

% Tool Diameter

Specify the stepover for the current operation as an exact Distance and then enter the distance value in the field provided.

Distance

The Global Parameters section allows you to set the tolerance value to be used in machining.

•Tolerance
This is the allowable deviation from the actual part geometry plus the Stock layer (if any).

Start Depth  

This allow you to specify a Start Depth that is different than that of the Hole Feature this operation is being derived from.  The cut will begin at this Z value location.

Pocket Depth / Hole Depth (H)  

Enter the Hole Depth (H) for the hole pocket operation.  It is calculated from the location of the cut geometry selection.

Hole Depth (H)

Select Climb (Down Cut) and the tool will be maintained in a downward motion into the stock.

Climb (Down Cut)

Select Conventional (Up Cut) and the direction of the tool will be maintained in an upward motion out of the stock.

Conventional (Up Cut)

Understanding Climb vs Conventional Milling

This defines the spacing at different levels of the cut.  Select from one of the following options:

This allows you to set the Stepdown Control (Dz) distance for the current operation as a percentage of the active tool selected for the operation.  Select % Tool Diameter and then enter the percentage value in the field provided.

Stepdown % Tool Diameter

You want to specify the exact Stepdown Control (Dz) for the Hole Pocket.  Enter the stepdown in the Distance field provided.

Stepdown dZ=Distance

Control the Stepdown Control (dZ) distance by entering the total Number of Levels in the field provided.  The distance between cut levels will be calculated for you.

Stepdown dZ=# of Levels

Check this box to automatically insert a corner Cleanup Pass at each Z Level cut.  These are the arc motions shown in blue in the figure below.

Cleanup at Each Cut Level

This defines the spacing between the cuts.  Select from one of the following options:

This allows you to set the stepover distance for the current operation as a percentage of the active tool diameter.

% Tool Diameter

Specify the stepover for the current operation as an exact Distance and then enter the distance value in the field provided.

Distance