Making Circles / Arcs the Same Diameter

The Same Value tool in the Constraint toolbar enables you to assign a selected circle/arc the same diameter as the largest selected circle/arc.

First, select circles or arcs whose diameters are to be the same.
Then, select the Same Value tool.

If none of the entities are restricted by pre-existing constraints, the entity with the largest diameter defines the diameter for all the entities.

If entities are restricted by pre-existing constraints, whenever possible, the constrained entity defines the diameter of the independent entity.

Note: If the original circle / arc is not in the current sketch, you must add it to the sketch as a reference entity.

Demo: Press the button below to view a short movie demonstrating the function:

Set the diameter of a circle or arc the same as another circle or arc

Select the Add Constraints button from the Sketcher toolbar.

The cursor will be a pointer-and-grid symbol.

Click the circles/arcs whose diameters are to be the same.

Click the Same Value tool .

The selected circles/arcs are now the same diameter as the largest selected circle/arc.

When the Same Value tool is used, the selected circle/arc with the largest diameter defines the diameter of the other selected circles/arcs.

In the example above, none of the entities were previously constrained. If entities are already constrained, whenever possible, the independent entity will be assigned the diameter of the constrained entity.

Notes:

You can also first pick the entities to constrain (while in Select mode), then select the Add Constraints option, then choose the desired constraint.
Edit functions are restricted by pre-existing constraints. An entity will not be edited if underlying constraints do not permit. If required, you can break an entity's constraints to make it independent of all other entities.