Inventor 2013 Set Sketch Scale by the First Dimension
New in Inventor 2013 is the ability to scale a sketch from the first placed dimension. This always caused issues in previous releases, as placing the first dimension, then modifying its size, could cause geometry to become displaced. Where as it now all scales together with the first dimension!
Note:After you place the second dimension, edits of the first dimension no longer change the sketch scale. Also, do not dimension from the origin with the first sketch as this will not scale all geometry as expected.