Typically, in AutoCAD, things are drawn in Model Space in 'real world' dimensions. I try to avoid the 1:120 situation but it happens.Īre you planning to use the scanned image as part of your final deliverable? If so, yes, you can bring the image in and scale it up so that it is twice its native size (assuming that the original drawing and the scanned image remain at a true 1/8' = 1'-0'. If the civil engineer's drawing is inserted into an architectural plan, then the 1:120 scale is generally necessary. In general, if an architect's plan is inserted in to a ft unit civil engineering drawing, then the 1:10 scale should work. If they are right then the plot scale needs to be adjusted. In general, if the drawing is 12 times too big check the measurements in model space. Same is true for other civil scales in the less often cases where inch units are used: 1'=20'-0' (1:240), 1'=30'-0' (1:360). If an architect (or civil engineer) chooses to use 1 unit = 1 inch, or if the architect scales (or if the system autoscales the 1 unit = 1 ft plan on insert), then 1:120 is exactly the scale you need so that when it is plotted, the AHJ can use his 1'=10.0' civil scale to measure the plan properly. The scale David mentions would not be a special custom scale that would require AHJ to have a special physical scale. I'm going to assume that you are speaking very tongue in cheek because otherwise, you are flat wrong.
