First on the drawing refer to the angles and look the 3D draw. We can notice that this 3D object can be drawn in several ways.

1. 3d Sample Drawing

We can draw starting the 3D object ( - rectangular) and we can draw it first in 2D with drawings, so Extrude and Union etc. I will start immediately with the 3D object so I'm using the command and command, subtract parts of the basic 3D object. Well before the start of the drawing, let's go study which are all the views we need for a better understanding of the 3D object itself and when we are to subtract certain parts from the basic one that you know how to follow the steps of this tutorial. So we have the following views on the object (Top view, Front view and Right view). If you look 3D draw of a finished shape you can notice that in two ways we can draw objects which we will remove (Subtract) from the base. We can work over.

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I worked over. So considering the dimensions I drew two rectangles using the, at the ends of a 3D object which I will later expand the and then cut off with. Command: rectang Specify first corner point or Chamfer/Elevation/Fillet/Thickness/Width: Specify other corner point or Area/Dimensions/Rotation: D Specify length for rectangles: 15 Specify width for rectangles: 60 Now I have a situation like this in the picture below.

Why is the value in minus (negative)? Minus (negative) because if we look at UCS position then we find that our Z axis positive in the opposite direction of what we need to extrude our rectangle. If we go below the plane, consisting of the X-axis and Z-axis (or Y axis and Z axis) then the value is minus (see ). Do not confuse the 2D coordinate system.

In 3D drawing, we also have a Z axis and it is always in combination with the X axis or the Y axis so again we have one plane. Why the value 30? So take a look at the dimensions of the drawing.

3d Sample Drawing

If the total width of the 3D object is 90 and we have a section that is dimensioned by the value of 60 then the calculation is simple (90-60 = 30). The next step is to subtract part of the basic 3D object on the other side.

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Of course again the same actions but this time the and we design rectangles of 40x20 (90-50 = 40, and dimension 20 we seen on the finished drawing). Command: rectang Specify first corner point or Chamfer/Elevation/Fillet/Thickness/Width: Specify other corner point or Area/Dimensions/Rotation: D Specify length for rectangles: 40 Specify width for rectangles: 20 It looks like this in the picture below. Here, notice that I have drawn the rectangles directly to the SE Isometric View.