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Tag Archives: creo parametric help

Analyzing Skirt Surface Options: Extend Curves

The Extend Curves option provides a further level of control that enables you to exclude curves from being extended during skirt surface creation. • By default, all selected curves are included. • The Extend Curves option enables you to exclude curve segments. Figure 2 – Curve Segments Excluded Figure 1 – Default Skirt Surface …

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Creating an Automatic Parting Line Using Silhouette Curves

A silhouette curve is created where the draft on the reference model instantaneously changes from positive to negative when viewed from the pull direction. • The automatic parting line is created using silhouette curves. • You must define the following: – Name – Surface references – Direction Figure 2 – Silhouette Curve …

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Sketching Lifter Mold Volumes

A lifter is another mold component that helps account for undercuts of the inside of the reference model geometry. • Lifters usually move at an angle. • Lifters are usually long and narrow. Sketching Lifter Mold Volumes Figure 1 – Viewing the Undercut Figure 2 – Lifter Created to Account …

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Sketching Mold Volumes

You can create a mold volume by sketching its shape. • Sketch-based feature tools include: – Extrude – Revolve – Sweep – Blend – Swept Blend – Use Quilt Figure 2 – Mold Model with No  Mold Volumes Sketching Mold Volumes Figure 1 – Sketching a Mold Volume Figure 3 – …

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Creating and Assembling a Workpiece Manually

You can create a part model inside or outside of Mold mode and designate it as the workpiece when assembling it into the mold model. • Use conventional part modeling techniques. • Assemble workpiece using conventional assembly constraints. • The accuracy of a manually created workpiece must be matched to the reference model. Figure 2 – Creating …

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Applying Shrinkage by Dimension

You can specify one shrinkage ratio for all model dimensions, or specify unique ratios for individual model dimensions. • Dimensions with shrinkage ratios applied appear magenta in the graphics window. • Select individual feature dimensions to add shrinkage ratios to. • Select a feature to add shrinkage ratios to all …

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Analyzing Mold Cavity Layout Orientation

You can adjust the orientation of the cavities in a multi-cavity layout. • Available orientations for the following cavity layouts: – Single ♦ Specify a different coordinate system – Rectangular ♦ Constant ♦ X-Symmetric ♦ Y-Symmetric – Circular ♦ Constant ♦ Radial Figure 1 – Rectangular Layout, X-Symmetric versus Y-Symmetric …

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Redefining the Reference Model

You can redefine certain items related to the reference model once it is placed within the mold model. • You can redefine the following reference model related items: – Reference model orientation. – Mold cavity layout. – Mold cavity layout orientation. • You cannot change the reference model to a …

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Analyzing Model Accuracy

One of the most important factors affecting the mold design process is model accuracy. • Types of accuracy: – Relative – Absolute • Automatically controlling accuracy in mold model • Implications of changing accuracy • When does accuracy need to be changed? Analyzing Model Accuracy Figure 1 – Confirmation for …

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Performing a Draft Check

You can perform a draft check or draft analysis to ultimately determine whether a model is suitable for a mold operation. • Draft Check – Specify references: ♦ Surface ♦ Pull Direction – Specify options: ♦ One/Both directions ♦ Draft angle • Draft Analysis – Similar to Draft Check – You …

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