Mirroring a 3D Object

In this Task

• The 2D sketch geometry of the model will be constructed.
• The newly constructed profile will be extruded to create a 3D object.

Associated Tasks

• Applying a Workplane to a facet of a 3D object.
• Using a Polyline with an Arc to create a new sketch profile.
• Using the Extended Ortho mode to create the new profile.
• Inserting a Circle onto the new profile.

Before you Start

• Use the sample drawing for this Session or the drawing saved from the previous session.
• View is set to Isometric South East.
• Display mode is set to Wireframe.
• Workplane is displayed.
• Vertex, Center and Extended Ortho snap are required. Right click the SNAP tab and activate.

Take Note

• The new profile can either be drawn on the Part 1 Sketch or Model layer.
• When saving your design, use another name to the sample drawing.

 

Workplane by Facet

Ribbon : Workspace | Workplanes | WorkPlane | by Facet

Palette : 3D Model | Workplane | Workplane by Facet

Right click in the Editor | Workplane by Facet

This workplane feature applies a workplane to a selected facet (flat surface) of a 3D object.The Page Up and Page Down keys can be used to cycle between the available facets of the part.Workplanes can be placed onto a facet for single-instance applications using the Auto Workplane by Face tool.

 

Select the Workplane by Facet tool from the Workplane menu shown above, then move the cursor over the face of the part shown below. A green outline will be shown indicating the potential facet on which to place the Workplane. Use the PgUp or PgDn keypad keys until the orientation of the cursor axes shown below is found.

Selecting a facet of the part to place the Workplane

Left click to seat the Workplane on the selected facet of the part. The result is shown below from the top (Plan) view and the Front view.

Workplane shown from Plan view, top left; and from the Front view, top right

A side view will be selected so that a profile can be drawn on the selected facet, shown below.

New profile to be drawn on the selected facet of the part

Drawing a New Profile

The Workplane is seated such that new sketch objects can be drawn using the Workplane as a convenient alignment. In this case, the Workplane has been seated on the right face of the part. A new sketch profile can now be drawn onto this face, referencing points of geometry on the part.

Right click in the editor and turn the view to Right.

Select the Polyline tool from the Draw | Line menu.

Making sure the snaps for Vertex, Center and Extended Ortho are activated, start the Poyline from the vertex indicated by point ❶ below, then TAB to the data fields and input a Length of 20 and an Angle of either 90 or 270 <enter> depending on the upward or downward direction of the User-CS. By moving the cursor in an upward direction, the Angle will be implied. This will take the line to point ❷.

Right click and select Arc Segment from the local menu. By allowing the Extended Ortho to track magnetically to the 2 intersections shown by point ❸ in the illustration below, a radius of 16 will automatically be created.

Note : It may be necessary to slightly hover the cursor over point ❷, then point ❹, then move upwards to point ❸. The extended ortho geometry of points ❷ and ❸ will create an intersection shown by point ❸.

Left click the point shown by point ❸ below, only when the 2 magnetic points shown by the arrows are activated. They are activated when the auxiliary lines track to the intersection points of geometry.

Right click and select Line Segment from the local menu and draw to the intersection shown by point ❹ below. Left click this point.

Allowing the Extended Ortho to track to the intersection points. Radius of 16 is produced.

All profiles intended for extrusion into 3D objects must be closed. Right click and select Close from the local menu. The result is shown below using a different color for illustrative clarity.

Closed 2D profle

Circle Center and Point

Using the center of the newly drawn profile as the center point, insert a circle with a diameter of 12, shown below.

Take Note

If you have difficulty locating the center point of the arc, right click onto the SNAP tab and make sure the settings for ‘in aperture only’ are set for the snap modes shown below. This limits the range of the snap to search for a vertex, midpoint etc to the range of the aperture.

Setting the snaps to ‘in aperture only’

Right click and select the Isometric view Iso-SE from the local menu, then reduce the zoom slightly. The new profile is shown seated on the right face of the part, shown below. The bolder lines are shown for illustrative clarity only.

New profile and circle drawn on right face of part

Simple Extrude

Ribbon : Draw | Draw 3D | Simple Extrude

Default Menu : Draw | 3D Object | 3D Profile Based | Simple Extrude

Palette : 3D Model | 3D Object | Simple Extrude

This extrusion tool sweeps a 2D profile in a plane perpendicular to the workplane to create a 3D object.

 

With the view set to Iso-SE select the Simple Extrude tool from the menu options above.

Select the newly drawn profile and extrude to a below-workplane depth of 12, shown below. Remember to use either a positive or negative height. In this example, a height of -12 is used.

By dragging the profile in the intended direction of the extrusion, the positive or negative height value will be implied in the Height field of the Inspector Bar.

Extruding the new profile to create an extrusion of 12

 

Save Drawing

This drawing is continued in the next Task.