The Undercut result displays areas where undercuts are located.
To access this dialog, run a Design Adviser analysis, select the Design Adviser page in the Summary pane, and then click Undercut, or click 
().
When a feature casts a shadow on another feature of the mold, the feature causing the shadow is called an undercut. The algorithm assumes the XY-plane is the parting plane and the positive Z-direction points towards the nozzle of the machine. Therefore the shadow feature is located at a higher Z-value than the undercut feature.
Sometimes, if the undercut feature is narrow and the material is very flexible, it is possible to eject the part without special tooling components, like in the case of some snap-fits. However, when possible, undercuts should be avoided in order to keep the tool design simpler. The less complex the tool is, the less expensive it will be to run and maintain.
Dialog elements
To visualize Undercut and/or Shadow features, select either or both options in the dialog.
- Undercut features
- Displays undercut features on the model.
- Shadow features
- Displays shadow features on the model.