Press the OK button to close the window.Ĭhange the model file from metres to millimetresĪutoCAD now knows that each unit in the map is 1 metre in the model.Using the dropdown in the ‘Insertion Scale’ section select ‘Meters’ if not currently set.Type ‘units’ in to the command bar and press enter, the Drawing Units window appears:.Open the DWG file downloaded from Digimap in AutoCAD.The instructions below explain how to re-scale a drawing from metres to millimetres. Creating a print file at a specified scaleĪutoCAD typically deals in millimetres, but Ordnance Survey data available in Digimap is provided in metres.