It’s not a bad idea to set limits for your AutoCAD drawing. The limits represent the rectangular working area that you’ll draw in, which usually corresponds to the paper size. Setting AutoCAD's limits correctly lets you display the drawing grid over your working area, use ZOOM All to display that working area, and plot your working area from model space. The following table sets out the dimensions in millimeters of work areas for different paper sizes at different drawing scales.
Drawing Scale | 210 x 297 mm | 297 x 420 mm | 420 x 594 mm | 594 x 841 mm | 841 x 1,189 mm |
---|---|---|---|---|---|
1:200 | 42,000 x 59,400 mm | 59,400 x 84,000 mm | 84,000 x 118,800 mm | 118,800 x 168,200 mm | 168,200 x 237,800 mm |
1:100 | 21,000 x 29,700 mm | 29,700 x 42,000 mm | 42,000 x 59,400 mm | 59,400 x 84,100 mm | 84,100 x 118,900 mm |
1:50 | 10,500 x 14,850 mm | 14,850 x 21,000 mm | 21,000 x 29,700 mm | 29,700 x 42,050 mm | 42,050 x 59,450 mm |
1:20 | 4,200 x 5,940 mm | 5,940 x 8,400 mm | 8,400 x 11,880 mm | 11,880 x 16,820 mm | 16,820 x 23,780 mm |
1:10 | 2,100 x 2,970 mm | 2,970 x 4,200 mm | 4,200 x 5,940 mm | 5,940 x 8,410 mm | 8,410 x 11,890 mm |
1:5 | 1,050 x 1,485 mm | 1,485 x 2,100 mm | 2,100 x 2,970 mm | 2,970 x 4,205 mm | 4,205 x 5,945 mm |
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Source:http://www.dummies.com/how-to/content/autocad-2012s-drawing-scale-and-limits-charts-mill.html
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