Mastercam Model Preparation Tools

In this article learn how to use Mastercam model preparation tools to fill holes in order to have the smoothest possible motion for toolpaths.

In an ideal world any CAD Model you import into Mastercam would be ready to be machined or you would have access to whoever supplied the model in order to have changes for machinability made. An example of this would be an Injection Mold Core.

The mold core needs to have a set of complexly shaped surfaces machined but there are holes in it for the ejection pins. I need to do something to fill those holes to have the smoothest possible motion for my toolpaths. If I do not have access to the original model to suppress them Mastercam gives me a complete set of model prep tools to work with.

Mastercam Model Prep Toolbar

The first area I would start is the Model Prep Tab, which gives me tools to simply drag most features off the part thereby filling the hole in.

Model prep tab

Model prep tab

Here I am using the “Move” command to drag that selected hole off the part to be machined.

Move command

Move command

Hole Moved

Hole Moved

Adding a Surface Patch

In other situations, where the opening is more complex, or it bisects more complex geometries it may be necessary to draw a surface patch. Again, Mastercam makes this easy.

Surface Fill Holes command

Surface Fill Holes command

It has an entire suite of Surface creation toolpaths to help you patch solid faces. Here I am using the Surface Fill Holes command to patch the Solid Face where the mold slide would come through the model.

Surface filled

Surface filled

If you have a model from a customer that needs geometry created in order to aid in manufacturing Mastercam, has you covered. The tools are simple to use but are very powerful.

If you have any questions or want to learn more about Mastercam, contact our team!

Dave Matuszek

Dave Matuszek has 25+ years of experience in Manufacturing and has been a Mastercam user since 1995 and a SOLIDWORKS user since 2006. David is a CSWP and has worked in aerospace, tool and die making, and general production work. Prior to becoming part of the TriMech family he was the Senior Mastercam Applications Engineer at MACDAC Engineering. In his spare time he enjoys woodworking, amateur radio, working around his small farm, and volunteering with local organizations such as being a member of the Shriners.
Related Service
Authorized Mastercam Reseller for:
  • Mastercam Software
  • Mastercam Training
  • Mastercam Maintenance