Creating various 3D Models like Furniture, Footing, Girder, Column drop with panel and Gable Wall in AutoCad
Aim 1:
Create a 3D Furniture element as shown in the Figure. Assume dimensions which are missing.

Procedure:
- Draw the lines in CAD as per the given figure.
- line starting point (0,0,0),(@0,3',0),(@3',0,0)&(@0,-3',0). press esc.
- Enter offset command of value 2" given in figure.
- Fillet the internal lines.
- now close the front openings of the figure.
- Now define the region of the closed area.
- enter extrude command and extrude the shaded face 2'4" because top is of 2" again.
- Now Draw rectangle on the top of the extruded parts.
- Again enter the REGION command and select the rectangle.
- Now enter the EXTRUDE command and extrude the rectangle plate 2".
- Select all side and top extrusion and enter UNION command to make the complete figure.
- Change Shaded workspaces to Hidden.
Final Result:

Aim 2:
Create the 3d Model of an Isolated footing as shown in Figure.

Procedure:
- Draw the 3' x 3' rectangle.
- Make offset of 1' inside.
- Open 3D view.
- Now select the middle rectangle ans move it in Z-direction about 2'6".
- Make copy of bigger rectangle in Z-direction about 6"
- using Line join all the corners of all three rectangles.
- Now, enter the 3dface command and make the faces as per the given figure.
Final Result:

Aim 3:
Create the 3D view of the AASTHO Type Girder.

Procedure:
- Draw the section on XY plane as per the given dimensions.
- Enter REGION command and make the section surface.
- Now enter the EXTRUDE command and extrude the face about 10' as per the given figure.
Final Result:

Aim 4:
Create a 3d Model of a drop column with panel as shown in section and isometric view.


Procedure:
- Draw the Bottom Circle of 1'6".
- Draw the square of 4'6" and move about 11' in Z Direction.
- now region circle and rectangle using REGION command.
- Enter EXTRUDE and extrude the circle region about 10' Z-direction.
- Enter extrude again and extrude the rectangle about 6".
- Now enter the Cone Command and select the bottom radius and top radius to draw the frustum between rectangle and circle.
Final Result:

Aim 5:
Create the 3d model of a wall as shown in Figure. Consider wall thickness as 9”.

Procedure:
- Draw the section of the Door in XZ-Plan .
- Enter the region Command and select the section of the figure.
- Enter the EXTRUDE command and extrude the face about 9" as given.
Final Result:
































