Basic 3D geometry

…There are two main techniques for creating 3D geometry in AutoCAD for Mac.…You can use basic 3D solids and then…modify them by joining and subtracting them from each…other, or you can create 2D geometry and then…convert it to 3D by extruding or revolving it.…We'll start with some basic 3D shapes, which…we can find here on the modeling tool set.…A box is essentially created as a rectangle with a third dimension, height.…A sphere is created similarly to a circle by…selecting a center point and specifying the radius or diameter.…

The other simple models are created similarly, and…I'll let you explore them at your leisure.…Each of these primitive solids have grips, which…allow you to control them just like 2D…objects, and you can use the same 2D…modifying objects, like copy and move, to edit them.…But there…are a few 3D specific modifying tools that we can use as well.…These are found under the modify menu under 3D operations.…Let's pick 3D Move and select our box and hit Return.…Before we pick a base point, we can see…