The UCS orientation between the two drawings does not match and/or the UCS is oriented in an unwanted way, with drawing elements on a different plane. If the UCS icon is not visible: Type UCSICON. Lines are slanted or at the wrong angle in AutoCAD viewport or when plotted, but appear straight in model space. The crosshairs may also look uneven and show colors instead of black or white. The Z axis may be visible. Distortion of CAD drawings when imported or exported can occur due to several factors, including scaling, units, geometry, or settings in the CAD software. To present a more accurate description of any inclined surface, an additional view, known as an auxiliary view, is usually required. On other PC the line is broken in the middle so as to show that it is not perfectly straight.
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