Half part dimension

 

 

 

 

Links / Videos:

 

The command revolution dimension allows a sketch of a revolved shape to be dimensioned rapidly in relation to the X axis.

 

Creation Stages / Use:

 

Select the 2D sketch > Constraints > Half part dimension... command from the drop-down menu. In a Draft document, select the Sketch > Constraints > Half part dimension... command from the drop-down menu.

 

  1. Select the mode:

Half part

Long diameter

Full part

The dimension is attached between the selected element and the sketch axis. Its value is twice the measured value.

The dimension is attached to the selected item only. Interesting when the geometry is far from its axis.

The dimension is attached between the selected element and its symmetric.

 

  1. Select an element in the sketch (point, line, circle, ...).

  2. Check Radius dimension to display it as a radius. If this option is unchecked, the dimension will be a diameter and will have the double of the measured value between the selected element and the reference axis.

  3. Position the dimension.

 

 

By default, the reference axis is the X axis of the sketch, it is possible to modify it with the command Define revolution axis.

This command does not allow Bspline curves to be dimensioned.

 

 

The dimension mode can be changed thanks to the Display type contextual command.

This display mode will be used by the Projected annotations command in a drafting dimension.

 

 

Modifications / Additional information:

 

The modification of the value of a dimension is made by double-clicking on the dimension text when no command is launched (neutral mode) or when the command Constraint is launched.

 

As the dimensions and constraints are created, TopSolid changes the color of the sketch elements in order to indicate whether they are fully constrained. An under constrained element is displayed in magenta, a completely constrained element is displayed in blue.

 

It is the same for dimensions, when an over-constrained dimension is detected, TopSolid automatically disables the dimension being created and displays it in gray. The commands Enable and Disable in the popup menu of a dimension allow the types of dimensions to be modified. In case of over-constraint,, the dimensions or relations in question are displayed in red.

 

Ask dimension value mode allows to modify the dimension value just after positioning it.