Creating and Placing the Ellipse
Create an ellipse to subtract from the horn. The ellipse is placed on the face of the horn.
- On the Construct tab, in the Create Surface group, click the Ellipse icon.
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On the Create Ellipse dialog
(Geometry tab), create an ellipse using the following
dimensions:
- Centre point (C): (0, 0, 0)
- Radius (Ru): 0.3
- Radius (Rv): 0.2
-
On the Create Ellipse dialog, click the Workplane tab.
- On the Workplane tab, select Custom workplane.
- Under Origin, click on X field to make point-entry active (indicated by a yellow outline).
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Move the mouse cursor over the flare while holding down Ctrl+Shift until the local workplane is
orientated as displayed in the image.
Note: The history of from where the mouse cursor was moved to the face centre, affects the orientation of the workplane.
- Click Create to create the ellipse and to close the dialog.