In a model, you can use the grid to ensure that objects are correctly aligned with one another. When aligning an item to the grid the system ensures that its center point is placed exactly on the grid.
Procedure
Activate the Start tab bar.
Click Grid.
The grid is displayed in the modeling area.
Double-click the model background. The properties dialog opens.
Click Grid on the Selection tab.
Specify the required settings.
Enable the Use as default check box if you want the settings to apply to all new models.
Click OK.
Grid settings have been changed.
Double-click the model background. The properties dialog opens.
Click Grid on the Selection tab.
Enable the Special grid mode check box. The grid width is automatically set to the lowest value (30) so that the special grid mode can be used.
Click OK.
The special grid is used in the modeling area.
Tip
If you set the special grid mode and entered a value below 30 for the grid width, the special grid mode will automatically be turned off. To indicate this, the Special grid mode check box is disabled.
Double-click the model background. The properties dialog opens.
Click Grid on the Selection tab.
The Grid width area provides you with various options for setting the grid width:
Move the slider to the left to increase the number of grid dots; the spacing between the grid dots will be reduced accordingly. Move the slider to the right to decrease the number of grid dots; the spacing between the grid dots will be enlarged accordingly.
Enter the required grid width in the spin box.
Click the up or down arrow in the spin box to increase or reduce the grid width.
Click OK.
Grid settings have been changed.
Tip
The special grid mode can be used from a grid width of 30. If you set the special grid mode and entered a value below 30 for the grid width, the special grid mode will automatically be turned off. To indicate this, the Special grid mode check box is disabled.