December is the month with the shortest daylight hours of the year in the Northern Hemisphere and the longest daylight hours of the year in the Southern Hemisphere. December starts on the same day of the week as September every year and ends on the same day of the week as April every year.
Kent Elrod has created a visual guide to dimensioning 3D objects in AutoCADâs model space environment. People new to 3D in AutoCAD often have a hard time adding dimensions to the model in model space; the dimensions either end up on the wrong plane or the dimtext is not shown in the right direction.
Work with Multiple User Coordinate Systems. In AutoCAD, you can choose to use a different user coordinate system (UCS) in each viewport in a single drawing file. In AutoCAD LT, you can use only one UCS in each drawing file. The AutoCAD LT behavior is the same as it was in previous releases. When you open an AutoCAD drawing file in AutoCAD LT, AutoCAD LT uses only the UCS from the current viewport.