Clear boundaries between 3D Hot Runner and Part

1. May you build your model and the runner system as ONE Part then the 3D mesh do not have clear boundaries between the runner and the part:

This situation is not well for the analysis and the result viewing.

To get clear boundaries use this workflow:

• Create the part as a CAD part
• Create the runner system as a CAD part
• Assemble the parts
• Save the assembly
• Read in the assembly in Synergy
• Change property of the runner Body to Hot runner (3D)
• Use CAD Face for the selection

• Set a fine mesh density for the gate area

• Select the CAD tab and change the default setting; use Precise mesh

 

• Mesh the assembly (Hint: runner and part elements are NOT connected!)
• To connect the elements use Global Merge
• Use a small value for the Merge tolerance (for example 0.01mm)
• and de-select Merge nodes along an element edge only 

The new mesh do have clear (flat) boundaries between the part and the hot runner elements:

The part do has a smooth transient mesh density from fine to coars (marked with a blue circle). This mesh design is very well. For more information view our article:

"TIPS for asymmetric fill pattern of 3D mesh"

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