In this Task

• The sketch will be prepared for 3D model creation.
• A new layer will be created specifically for the model.
• Lines and annotations not critical to the creation of the 3D model will be moved to the Dimension layer which will be switched off.
• The inner profile of the sketch will be extruded to a height of 25.
• The outer profile will be extruded to a height of 20.
• Two separate parts will be created.

Associated Tasks

• Using the Concept Explorer to create a new layer.
• Dynamic Rotate and Isometric views

Before you Start

• Open the drawing which was saved from the previous Session or use the [sample drawing](https://www.tricad.co.za/2020-1/SharkCAD/Content/Resources/Drawings/Session 3 Sketch%26Model.sfx) for this session. More Info :The sample drawing for this session contains the 2D Sketch and the 3D Model. Frequently, these 2 layers are superimposed. Use the Concept Explorer to control the display of the layers. Create your own layers if you wish to produce the design from scratch or pan to an unused area of the editor.
• Save this drawing as Session 2 Model using File > Save As.

Take Note

• Layer control is used to create a distinction between the sketch and the model.

[](https://www.tricad.co.za/2020-1/SharkCAD/Videos/3d-02-01 model.mp4 “Internet Connection Required”)

Open the drawing which was saved as Session 2 Sketch or use the [sample drawing](https://www.tricad.co.za/2020-1/SharkCAD/Content/Resources/Drawings/Session 3 Sketch%26Model.sfx) for this session.

Save this drawing as Session 2 Model using File > Save As.

Creating a New Layer

Window > Concept Explorer

Note : This step is not necessary if you are using the sample drawing for this Session.

A new layer will be created in order to distinguish the sketch geometry and solid model. Use Window > Concept Explorer to create a new layer called Model, shown below.

Creating a new layer

Activate this layer as the current layer, shown below, then switch of the dimension layer, shown below.

Activating Model as the current layer, switching off Dimension and Construction layers

Lines which are not essential to the production of the model should either be deleted or moved to an invisible layer. In this example, the center lines and angled lines will be moved to the Dimension layer.

Select all lines and arcs which are not critical to the production of the 3D model, similar to those shown selected below, then double click onto the Dimension layer in the Concept Explorer, shown below.

Moving the selected lines to the Dimension layer

To conceal objects on this layer during the production of the model, activate as current the Model layer and switch off the Dimension layer. The result is shown below.

Activating Model as the current layer; switching off the Dimension layer

Extrude Solid

Modify | Draw | Solid from Curves | Extrude Solid

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Select the Extrude****Solid tool from the toolbar or use Modify > Draw > Solid from Curves > Extrude Solid. Make sure the option is set to Distance.

From the options menu, select Distance, then TAB to the distance field and input 20. The values should be similar to the illustration below.

Hold down the SHIFT key and select the objects shown in red below. In this example, a horizontal and vertical pick window was used. For more information, refer to the Video for this task.

Selecting the curves to extrude

The result is shown below.

Isometric View

View > Isometric

Right click > View > Isometric

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Right click in the editor and select View > Isometric to view the model. The result should be similar to the illustration below.

In the illustration below, the Transparency option has been activated. Position the cursor over the model, right click and activate Transparency.

With the Extrude****Solid tool still active, TAB to the Distance field and input a new Distance value of 15, making sure the dZ value is also set to 15.

Create a pick window around all the objects, shown below.

Using a pick window to select the objects for extrusion

The result is shown below.

Outer profile extruded

Component Color

When the layer for the Model was created, the color override option was not selected. When the color box of the layer is shown in non-override mode, shown below, the color of the component can be changed infinitely in the editor. When a color is selected, this represents an override and only the selected color will be used for this part.

Layer color override off for layer Model; on for Sketch.

When the layer color override is off, shown above for layer Model, the component color drawn on that layer can be changed at any time. This is useful when there are multiple components or sub-assemblies as it provides an easy contrast between parts.

Position the cursor over either part, then right click and select Color. Select different colors for the components, similar to the illustration below.

Different colors selected for the components

Dynamic Rotate

View | Rotate View

Right click in the editor |Dynamic Rotate

This option rotates the view of the model without rotating the physical part. To return to a standard view, right click and select the required view.

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Use the Dynamic****Rotate option to turn the view of the parts. Right click in the editor and select Dynamic****Rotate. When done, right click again and select View > Isometric.

Rotating the part for visual clarity