Options

Introduction

This topic explains the Options page found in the Project Curves operation of the Mill 3 Axis Wizard.

Options

Limits

Boundary Options

Boundaries are used to contain the toolpath of the operation to stay within the specified area. The Boundary Options determine where the tool cuts when it reaches the boundary in one of three ways.

 

  • Center of Tool - forces the center of the tool to cut directly on the specified boundary.

 

Center

 

  • Tool Inside - forces the entire tool to stay inside of the boundary. (This offsets the toolpath to the inside of the boundary by the tool radius.)

 

Inside

 

    • Offset - is used to add an additional offset to the location of the tool at the boundary when using Tool Inside or Tool Outside. When using Tool Inside, the tool stays inside of the boundary by the specified distance. When using Tool Outside, the tool goes outside of the boundary by the specified distance. Note that positive or negative values are supported.

 

  • Tool Outside - forces the entire tool to go outside of the boundary. (This offsets the toolpath to the outside of the boundary by the tool radius.)

 

Outside

 

    • Offset - is used to add an additional offset to the location of the tool at the boundary when using Tool Inside or Tool Outside. When using Tool Inside, the tool stays inside of the boundary by the specified distance. When using Tool Outside, the tool goes outside of the boundary by the specified distance. Note that positive or negative values are supported.

 

 

 

Other

Rest Finishing

 

- No rest finishing will be used.


- When this check box is selected, BobCAD-CAM calculates the toolpath to remove all the non-machined areas that remain. On intricate parts it is possible to run multiple rest rough toolpaths to remove as much material as possible before running semi finishing or finishing toolpaths. With Rest Finishing toolpaths you normally use a smaller step down, as the cutter size reduces, than have been used with the previous cutter.

 

Note: The Use Previous Operation check box doesn't display unless you have another operation previous to the current operation in the feature.

 

  • Tool from Previous Operation - When this radio button is selected, BobCAD-CAM will use the tool information from the previous operation to calculate the rest finishing pass.

    • Previous Tool Diameter - will be disabled and use the tool information from the previous operation.

    • Previous Corner Radius - will be disabled and use the tool information from the previous operation.

    • Expand Rest Area - allows you to manually extend the area to be rest roughed, in order to ensure overlap.

  • User Defined Tool - will allow you to enter tool information manually.

    • Previous Tool Diameter - Enter the previous tool diameter here and BobCAD-CAM will calculate what stock would be remaining in order to compute tool path for the current tool.  Be sure to enter a diameter larger than the tool used for this operation.

    • Previous Corner Radius - Enter the previous tool radius here and BobCAD-CAM will calculate what stock would be remaining in order to compute tool path for the current tool.

    • Expand Rest Area - allows you to manually extend the area to be rest roughed, in order to ensure overlap.

  • Stock STL - will allow you to use the Rest Stock STL button to select an STL model for BobCAD-CAM to compare to the selected geometry. Once the STL is compared to the geometry the toolpath will be created where the STL model extends beyond the selected geometry.

    • Detect thicker than - allows you to enter a value to ignore. For instance, if an allowance has been left for finishing by another operation, entering that amount will have this operation leave that allowance.

    • Rest Stock STL - launches the Load Stock File dialog to allow you to select an .stl file which will be used to dictate the remaining stock to be machined.

    Tip: The simulation will allow you to save out the remaining stock as an STL model. It is recommended that you simulate the previous operations and then save out the remaining stock as an STL. For more information about this process, see the Save Stock Material section in The File Tab (Simulation).

     

    • Expand Rest Area - allows you to manually extend the area to be rest roughed, in order to ensure overlap.

 

 

Point

 

  • Calculate From

    • Tool Tip - calculates the toolpath from the tool tip.

    • Tool Center - calculates the toolpath from the center of the bottom of the tool, in the case of a straight cornered end mill, or from the center of the radius on the tool, in the case of bullnose or ball-end mills.

 

 

 

Angle Range

The Angle Range parameters allow you to define an angle interval for which the toolpath is created. You can machine inside of the range or outside of the range. This allows you to define steep and shallow areas of the part model so you can optimize the operation.

 

- The toolpath will not be limited by the Angle Range.

- The toolpath will be limited based on the Angle Range values.

 

 

Angle Range

 

Slope Angles

 

  • Angle Start - determines the starting angle for the angle range. This value must be between 0-90 degrees and it must be less than the Angle End.

  • Angle End - determines the ending angle for the angle range. This value must be between 0-90 degrees and it must be greater than the Angle Start.


 

Machining Area

 

  • Machine Between Slope Angles - forces the operation to only create toolpath inside of the Slope Angles.

  • Machine Outside Slope Angles - forces the operation to only create toolpath outside of the Slope Angles.