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by Stuart Tanfield

One of the variables that normally affects new users and users who dip in and out of AutoCAD more than experienced users is the “ZOOMFACTOR”system variable. This works in a similar way to the mouse wheel settings for Windows. This works by increasing or decreasing the zoom of your drawing based on one mouse scroll notch. This just saves you having to scroll lots and lots to get to the specific area you are looking at.

By typing the system variable into the command line you can change the value to between 3-100. With 100 being the highest zoom, this means one notch would zoom in or out considerably. The default value is set to 60, I just checked mine and at some point I had tweaked mine to 70, which seems to work quite well.