Autocad 2d limits

by Design Workshop Sydney

When you start a new drawing it’s a good idea to set up your drawing limits first. This will ensure that you don’t encounter any zooming and panning problems later on down the track. We show you how in our Autocad 2d courses.autocad-2d-limits
In the Autocad 2d workspace we do all our drawing in Model Space using life size dimensions, in other words, at a scale of 1:1. When we are ready to print the drawing we go into one of our Paper Layouts and scale the View port window down. The view port window is like a cut-out window looking into your Model Space, and it’s this window that you scale, a bit like focusing a camera lens.
Setting up your drawing Limits is really just like creating a massive sheet of paper that you draw your building elevation or whatever onto, at real-life scale. Please note that Drawing limits only really only affects your zooming and panning – it won’t affect the printing or scaling in any way. Sometimes a colleague or client will send you a drawing which you can’t zoom or pan across; in such a case you need to increase your Drawing Limits. These will therefore vary according to the size of object you are drawing.
To set Drawing Limits type the word limits into the bottom Command Line (Pre-2009: Format > Drawing Limits). Note that 0,0 is the default lower-left corner – always hit Enter to accept this. Note also that the default upper-right corner is 420,297. This is the standard A3 paper size, which is fine for a small object like a machine part, but not for anything larger like a house elevation or floor plan. A4 is another option for a small object.
For a 10m wide house, for example (see screenshot above) you would need a drawing space about 20m wide. Your limits therefore would be 0,0 for the lower left corner and 20000, 15000 for upper right corner. Units are in millimeters. So it’s easy to guess the size of Drawing Limits and adjust them later if necessary.
Alternatively, the “correct” method is to multiply the paper sheet size (eg. A2 = 594 x 420) by the Scale Factor, that is the final scale of the drawing (eg. 1:50 or 1:100). This will give you the drawing limits of the upper-right corner, for example 29700,21000.
When you have established your limits make sure you zoom out completely: type Z > Enter, and A > Enter (Zoom > All). This will show your whole drawing space, even though at this stage there is nothing to see. But if I draw in the middle of the screen now, I know that I’m drawing in the middle of my drawing limits.
More information on all features of the program can be found at the AutoDesk website. And see many examples of our clients’ work on our Facebook page.
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