Cornering Parameters

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Cornering Parameters

The following Cornering Parameters are available for all Profiling operations.  You can control both External Corners and Interior Corners.  You can also filter which corners these controls are applied to by specifying a corner angle range.  Please be sure to read the notes below before using these parameters and perform cut material simulations to fully understand how they affect cutter movement.

Hint!Closed Regions Required: These Internal and External Corner Types require that the Control Geometry selected for the Profiling operation be closed regions or open poly-lines.  If your Control Geometry is a single line or multiple disconnected lines, you must use the Default selections or an error message will be returned.

Hint!Tip: Arcs not Required: You can use these parameters even if the controller does not support arcs. In this case, make sure that the output is set to Linear output. This can be set in the Set Machining Preferences dialog located on the Machining Browser under CAM Preferences.

Hint!Tip: Location of Start Points:  If the start point is at a vertex where the corner is being applied, it is automatically moved to the corner.

 

tog_minusDialog Box: Cornering Parameters tab
Dialog Box: Cornering Parameters tab, Profiling, 2 Axis

Dialog Box: Cornering Parameters tab, Profiling, 2 Axis
tog_minusExternal Corner Type

The External Corner Type selected will be applied to all corners measured between the Minimum Angle and Maximum Angle values provided.

Round (Default)  

This the default External Corner Type.  The tool rolls around the sharp corner.  Depending on the toolpath Tolerance, this method can cause rounding of the sharp corner.  NOTE: This option must be used if your Control Geometry is not closed or is not a ploy-line!

Round

Round

Sharp  

This External Corner Type will force the tool to proceed past the corner vertex.  When the tool diameter becomes tangent with the projected edge direction, it proceeds along the secondary edge.

Sharp

Sharp

Sharp Limited  

This External Corner Type will force the tool to proceed past the corner vertex by a specified Overshoot Length.  If the Overshoot Length is specified as a distance less than the tool radius, a round is added at the corner.  The radius of the round is equal to the tool radius minus the Overshoot Length.  If the Overshoot Length is equal to or greater than the tool radius the Sharp Corner Type is used.

Sharp Limited

Sharp Limited

Loop  

This External Corner Type will force the tool to proceed past the corner vertex by a specified Loop Radius before it proceeds tangent to the secondary edge.  The radius is measured tangent to the secondary edge.

Loop

Loop
tog_minusExternal Corner Filters

Minimum Angle  

This is the Minimum Angle for corners to be considered for an External Corner Type.  Corner angles below this value will use the default round method for external corners.

Maximum Angle  

This is the Maximum Angle for corners to be considered for an External Corner Type.  Corner angles above this value will use the default round method for external corners.
tog_minusInternal Corner Type

The Internal Corner Type selected will be applied to all internal corners measured between the Minimum Angle and Maximum Angle values provided.

Sharp (Default)  

This is the default Internal Corner Type.  The tool will change directions when it meets the approaching edge.  NOTE: This option must be used if your Control Geometry is not closed or is not a ploy-line!

Sharp

Sharp

Dog Bone  

In this Internal Corner Type, the tool will stop when it meets the approaching edge and then proceed directly to the corner vertex point.  The tool will then reverse direction back to the previous point and proceed tangent with the approaching edge.

Dog Bone

Dog Bone

T-Bone  

In this Internal Corner Type, the tool will stop when its diameter meets the approaching edge and then continue tangent until it reaches the corner vertex.  The tool will then reverse direction back to the previous point and proceed tangent with the approaching edge.

T-Bone

T-Bone
tog_minusInternal Corner Filters

Minimum Angle  

This is the Minimum Angle for corners to be considered for an Internal Corner Type.  Corner angles below this value will use the default sharp method for internal corners.

Maximum Angle  

This is the Maximum Angle for corners to be considered for an Internal Corner Type.  Corner angles above this value will use the default sharp method for internal corners.