To Set the Size of the Drawing View
1. Determine the edge that you want to use as the basis for setting the drawing_scale_factor. The system uses the dimension value and the length of this edge in the drawing to calculate it. Whenever you change either one of these variables ("length" or d#), it calculates the length of model edges according to the following equation:
length in the view = (dimension value) x(drawing_scale_factor) x (drawing_scale)
2. Add the following relation to the part or assembly:
drawing_scale_factor = length / dimension
where length is the parameter corresponding to the current drawing measurement of the above dimension d#, and dimension is a model dimension, d#.
3. Regenerate the model.