If you need to modify the size of a certain object, do you need to change the object again, and then re-dimension?
Is it possible to make the object change with the modified dimension?

This dimension driven function is really achievable.

Dimension Driven #

• Click menu “Annotate/Dimension Driven”, or command enter : “DIMDRIVER”or”DIMDR”
• Specify the dimension
• Input new dimesion length, such as 20, and then press enter
• Box select the entities that you want to change

Notes:
Before using the dimension driven function, confirm the relationship between the objects, it can prevent confusion in the modification.

Dimension Symmetrical Driven #

• Click menu “Annotate/Dimension Symmetrical Driven”, or command enter : “DIMSYMDRIVER” or “DIMSDR”
• Specify the dimension
• Input new dimesion length, such as 15, and then press enter
• Specify first point/second point of the symetrical line (Specify the axis of symmetry）
• Box select the entities that you want to change

Notes:

When using the dimension driven function, you must accurately grasp the box selection area, otherwise, it is easy to cause confusion in the modification part.