Part Modeling > Engineering Features > Round > To Create a Conic Round
  
To Create a Conic Round
1. Create a constant or variable round and keep the Round tab open. Preview geometry of the round is shown.
2. Click the Sets tab.
3. In the cross section shape box, select Conic. The system does the following:
◦ Adds a conic parameter handle with a default value (0.5) to the current radius for the round set.
◦ Displays the Conic Parameter box on the Round tab and on the Sets tab.
◦ Modifies the radius table to include a D column containing a conic distance value box for the radius. Note that the distance value box on the Round tab is available only for constant rounds.
4. To define the conic parameter that controls the sharpness of the conic shape, drag the conic parameter handle to the preferred value.
If you set the ratio_grid_interval configuration option to a value within the range of 0 through 1, the conic parameter handle automatically snaps to the grid in intervals of the specified value when you drag this handle.
The system displays the radius value in the graphics window and dynamically updates the preview geometry.
 
* You can also type a new parameter or select a most recently used one using the Conic Parameter box on the Round tab or the Sets tab.
5. To define a radius, drag the radius handle to the preferred distance or snap it to a reference. The system displays the distance value in the graphics window and dynamically updates the preview geometry.
 
* You can also type a new value in the distance value box or select a most recently used value from the list in the radius table (D column) located on the Sets tab. The same method applies to the distance value box on the Round tab. However, this box is available only for constant rounds.
6. Click .
 
• You can easily convert a conic round to a D1 x D2 conic round by placing your pointer over the radius of the conic round, right-clicking, and selecting Independent on the shortcut menu. If you click this command again, the system restores the round to its previous state. Note that you can only convert constant round types.
• If you are using a chain as a reference and you want to modify it, click Details on the Sets tab and use the Chain dialog box.
• To quickly define a distance or conic parameter, double-click the value in the graphics window and type a new value and press ENTER or select a most recently used value from the list.
• You can always select Default in a most recently used list to enable the system to determine the value.