Pulling Direction Parameters

More Operating Mode information is available in the Basic Tasks

• Defining the Main Pulling Direction,
• Defining the Main Pulling Direction with No Draft,
• Defining The Pulling Direction For Sliders.

• Main Pulling Direction dialog box:
  
• Slider/Lifter Pulling Direction dialog box:
  

Pulling Axis System

Direction: Pulling axis direction that can be defined:

• either by entering the X,Y,Z coordinates, 
• or by using the compass:
  • The compass is snapped automatically onto the current axis system.
  • You can change the location of the compass, or rotate it.
  • The direction in the dialog box is updated accordingly, the main direction being the Z axis of the compass.

The pulling axis direction can be locked once you have set the axis system so as to avoid unintentional modifications that can be made when you are moving the compass.

Use the Reverse button to reverse the pulling direction.

• the Local Transfer,
• the Fly analysis,
• the Explode option,

Draft angle:Defines the minimum un-molding angle between the surface and the main pulling direction or the surface and the slider area pulling direction.

Undercut: Undercut zones are recognized via the facettisation of the part.
Zones are defined by the angle formed by the facet normal and the pulling direction.
Undercut areas that make the un-molding of a zone impossible are ignored.
This leads to incorrect definition of areas.
For example, the small green face below, seen as a Cavity area, should be blue, i.e. belonging to Other areas.

Undercut off	Undercut on

Compute Undercut to take account of hidden faces for a given pulling direction.

Mold Areas

For Main Pulling Direction:

For Slider/Lifter Direction:

 

Areas to extract

They are

• Core side (displayed in red),
• Cavity side (displayed in green),
• Slider/Lifter (displayed in yellow),
• Other (displayed in blue). Other indicates surfaces that are neither Core, Cavity nor Slider/Lifter and that will be dealt with later.
• No Draft (displayed in pink).  No Draft is made of the surfaces that are vertical with respect to the draft angle.

Connected area: Lets you choose whether you want to use all of the faces that are connected to the face you selected (active) or all of the faces in the body, whether connected or not. 

Visualization

By default, Faces display is active, i.e. the faces of the part are displayed.

The definition of the mold areas is based on a facettisation of the faces.
The deviation of the normal to a facet with the pulling direction defines whether the facet belongs to

• the core or the cavity,
• or the slider/lifter area.

If one facet in a face does not clearly belong to one of the above areas, the whole face will be considered to be Other and displayed in blue. In this case, it is interesting to know how all the facets of the face behave, to decide to split the face, or to transfer it to one mold area.

Facets Display: Displays the facets on a blue face so that you can find which ones are not compatible with the rest of  the face and solve the problem.

Faces display:

Facets display:

Explode: Displays the graphic visualizations of

• the Core area, the Cavity area (Main Pulling Direction dialog box, Other area is ignored),
• the Slider/Lifter area and the Other area (Slider/Lifter Pulling Direction dialog box),

apart from each other, along the current pulling direction.

Switch Core/Cavity and Switch: The orientation of the facets normals may lead to "inverted" Core and Cavity areas or Slider/Lifter and Other areas for a given pulling direction.
Click Switch Core/Cavity or Switch to invert those areas directly, without inverting the orientation of the normals nor the pulling direction.

Local Transfer

Lets you also transfer one face of the part to one of the areas to extract (Core, Cavity, Slider/Lifter, Other).
Local transfer is available in exploded view.

Once the Locked check box is selected, the lower part of Local Transfer becomes active:

• For the Main Pulling Direction dialog box:
  
• For the Slider/Lifter Pulling Direction dialog box:
  

Facets to ignore: If even only one facet of a face is not clearly either Core, Cavity or Slider/Lifter, the whole face will be considered to be Other and displayed in blue. 
Facet Display option helps solve this problem.
One solution is to ignore a given percentage of those alien facets.
To do so, select the Facets to ignore check box and use the slider to define this percentage.
Consider this example.

We have selected the Facet display option:

It is clear that a little amount of facets is considered as belonging to the Core and not to the Cavity.
If those facets were ignored, the blue portion would belong to the Cavity, which is what we want.

We have unselected the Facet display, selected Facets to ignore and defined the percentage of facets to ignore with the slider.
This is what we get:

Target: When selected, the Target check box lets you transfer faces to a mold area, as explained in the basic tasks and select the propagation type:
 

• For the Main Pulling Direction dialog box:
  
• for the Slider/Lifter Pulling Direction dialog box:
  
• No propagation: you pick the faces you want to transfer one by one.
• Point continuity: you pick one face and all the faces of the same initial color that have a point continuity with this face will be selected and transferred.
• By area: useful when a few faces of a given color are found among the destination faces, but are not connected to each other:
  
  You select one red face and all the other red faces found among the green ones will be transferred.
  The faces selected are transferred to the destination area, this transfer is taken into account immediately.

Changes the selection to transfer locally.
This button is inactive when you are using Explode Visualization mode.

Other ->Core: Transfers all Other faces of the part to the Core area.

Other ->Cavity: Transfers all Other faces of the part to the Cavity area. 

No Draft ->Other: Transfers all No Draft faces of the part to the Other area.

Reduce Transitions: No Draft faces and Other faces are checked one by one. When all faces adjacent to the face that is checked are in the same area (Core or Cavity), the checked face is transferred to that area (Core or Cavity)

Optimize Split: This functionality aims at computing two main Core and Cavity areas.

The small Core and Cavity areas are transferred to the Other area.

  Performs a quick dispatch: it computes an automatic separation and combines Facets To Ignore, Reduce Transitions, No Draft ->Other and Optimize Split.