Locking Dimensions Use Smart Dimension to select: Distance between two points at an angle Angular dimensions Use the pointer to control positioning. Pointer is unlocked. Change the measurement and the position of the dimension. Pointer is locked. Measurement is locked; dimension position is available. To lock a dimension: In an open sketch, click Smart Dimension (Dimensions/Relations toolbar) or Tools > Dimensions > Smart. Click the items to dimension. Move the pointer until the preview indicates the dimension type you want. Right-click to lock the dimension type. Move the pointer around until the dimension is correctly located. Click to place the dimension. Set the value in the Modify box and click .Video: Locking Linear Dimensions Parent topicDimensions Creating Angular Dimensions Between Three Points Creating Angular Dimensions Between Two Lines Creating Arc Dimensions Creating Circular Dimensions Creating Dimensions Between Two Points