Wireframe: Swept 2D – Mastercam


Wireframe Swept 2D is actually a 2½D toolpath that is created by sweeping one contour (across contour) along a second contour (along contour). This toolpath allows only one along contour. The across and along contours blend together which generates a 2½D toolpath.

 

Toolpath Creation

Example 1 – Cleaning corners

Below is an example of where a swept operation would be used to clean out corners in a profile, minimizing the radius. This assumes the profile has been created with a contour operation with a profile tool.

swept operation to clean out corners in a profile image

Note: for this example, surfaces have been created to make this part easier to see; however wireframe is required for this toolpath. Surfaces and solids are unnecessary.

Create geometry in the shape of the profile which will be the across contour and create geometry that dictates the path the profile will follow.

create geometry in the shape of the profile image

Note: the geometry colour and line weight is irrelevant.

Toolpaths > 2D > Expand gallery > Swept 2D

File router toolapths 2d toolbar image

File Swept 2D window
Select contours.

Tip: Use partial chain, select the start and end of the chain (keep in mind the direction of the chain).
OR
If different colour geometry has been used, select chain based on geometry colour and use chain instead of partial chain.

Select colours window

Select the across geometry and the along geometry using one of the options stated above. Keep in mind the direction of these contours as the direction of them dictate the direction the toolpath will go.

define the across contour image

define the along contour
Accept Accept button
Select the point of intersection.

enter the intersection point of the across and along contours image

Select the appropriate tool.

Swept 2D Window Image

Review parameters (this may need some modification depending on your part and the directions of your chains).

Swept 2D Parameters

Accept Accept Button

Swept 2D

 

Example 2 – Create Profile

Below is an example of where a swept operation would be used to create the profile and no roughing operation is present.

Example 2 create profile image
Note: for this example, surfaces have been created to make this part easier to see; however wireframe is required for this toolpath. Surfaces and solids are unnecessary.

Create geometry in the shape of the profile which will be the across contour and create geometry that dictates the path the profile will follow.

Geometry created slong contour and across contour image
Note: the geometry colour and line weight is irrelevant.

Toolpaths > 2D > Expand gallery > Swept 2D

Toolbar Mill Toolpaths image

File Swept 2D Image
Select contours.

Tip: Use partial chain, select the start and end of the chain (keep in mind the direction of the chain).
OR
If different colour geometry has been used, select chain based on geometry colour and use chain instead of partial chain.

Select Colour Swept 2D image

Select across geometry and along geometry using one of the options stated above. Keep in mind the direction of these contours as the direction of them dictate the direction the toolpath will go.

Swept define the across contour Image

Swept define the along colour Image
Accept Accept Button
Select point of intersection.

Intersection point of the across and along contours

Select the appropriate tool.

Select the Appropriate Tool Window

Review parameters (this may need some modification depending on your part and the directions of your chains).

Swept 2D Parameters Tab

Accept Accept Button

Swept 2D

This toolpath can also be selected to rough out the material as well. A C-Hook is used for this.
Press Alt+C or select Run Add-In icon Run Add-In Icon under Home tab.
This should default to C:Program Files\Mcam(version)\chooks
Select Swept2R.dll

Program Files Window

Set the roughing parameters as needed.

Swept2r Image

Accept Accept Button

Swept 2D

 


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