Now we are back to Blender to make a new test ring. This time, instead of starting from scratch, reload the project and resize the existing ring. Care has to be taken when resizing the ring to insure that it doesn't extend below the XY plane.
Fingercylinder by clicking on the eye icon in the Outliner on the line for the
Select All (A) objects.
Begin the Scale (S) operation.
Press Shift + Z to lock the scale operation to all but the z axis.
1.03to scale the selected object just slightly larger.
Press Enter to end the scale operation.
Pressing Shift and X, Y, or Z key when in an operation such as scale or grab, locks the operation to everything but the selected axis, regardless of view. With rotation, however, the effects are less predictable.