AutoCAD has tons of settings. It so many that it’s easy to play tricks on your fellow CAD users. Here’s one that I would like to share with you. It involves changing the Limits and turning on the Snap feature.
|Figure on left drawn with Snap Mode on.|
On the right are the Snap Mode control settings
You can further control this grid by setting your drawing’s limits. Limits will control the lower-left corner and the upper-right corner positions of your grid. It can also control where you can enter points. This is called Limit Checking. When this feature is on it “limits” your working area to within the defined Limits coordinates. When you turn Snap Mode on (press F9) you can only Snap to the grid area.
This is where the Auto CAD Prank comes in. Go to Paper Space. Set
UPDATE (in italics)
Several of you have found that you cannot set the Limits while in Paper Space. After more research I found that you cannot set Limits in Paper Space if you are displaying the Paper Background. Go to OPTIONS, Display Tab and uncheck this. Once this setting is off you will be able change the limits in paper space.
Also, if you open the Drafting Settings control window (type OS on the command line) and go to the Snap and Grid tab you can make some changes there that will mess with people. Change the Snap Spacing (X and Y) to a size that is much larger than the screen (in paper space). For example, if the drawing is in Imperial units and it is a 24 inch by 36 inch size sheet, set the snap grid spacing to a very large number like 200. Make sure this number is greater than the limits. This will “limit” the number of snappable points to just one and the user will not be able to move their crosshairs in the drawing area.