Cutting 3D Forms with 2D Toolpaths in Mastercam

The Wireframe Toolpaths in Mastercam are often overlooked. They can be extremely useful toolpaths once you have an understanding of how they work. 

Mastercam's wireframe toolpaths let you create toolpaths similar to 3D toolpaths, but with the use of wireframe geometry. This wireframe geometry can be extracted from solid models or surfaces, or you can create the needed wireframe without any solid or surface.

There are 6 toolpaths to choose from...
Ruled
Lofted
Revolved
Coons Patch
2D Swept
3D Swept

This video focuses on the 2D Swept toolpath. 

Swept 2D toolpaths are 2.5-D toolpaths that are created by sweeping one contour (the across contour) along a second contour (the along contour).

There are a few rules for this toolpath to be aware of. A Swept 2D toolpath can have only one along contour. The contours cannot contain splines. The along boundary must lie parallel or perpendicular to the current toolplane.

2D Swept toolpaths are typically very efficient with amount of gcode/nci created for a given profile compared to an equivalent 3D toolpath. There is limited flexibility in the 2D Swept toolpath but if the feature being machined fits the requirements for this toolpath, it's pretty hard to beat.

For those interested in trying this programming technique yourself, here is a link to download the solid model...
https://blog.caminstructor.com/cuttin...


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