Creating various 3D Models like Furniture, Footing, Girder, Column drop with panel and Gable Wall in AutoCad

AIM:

To create a 3D model of the furniture element

1. Furniture element
2. Isolated footing
3. AASTHO type girder
4. Drop column with panel
5. A wall.

COMMANDS USED:

1. Extrude,
2. Offset,
3. UCS,
4. Box,
5. Union,
6. Subtract,
7. Move,
8. 3d orbit,
9. Loft,
10. Sweep,
11. Cone,
12. Region,
13. Boundary.

PROCEDURE:

Open the AUTOCAD, click on workspace switching and change it to 3d modelling and click on the home button near the view cube.Set the limits and zoom-ALL

DRAWING OF 3D FURNITURE ELEMENT:

1)

AIM:To create a 3d model of the furniture element.

PROCEDURE:

STEP 1:

Open AUTOCAD, select imperial as the units are in feet and inches. Go to units command and set it to engineering. so that feet inches can be inserted.

STEP 2:

Create a box by clicking from the tool bar or box command, click on lenght give the lenght as 3' and width as 2'6".Height is to be specified, give the height as 2'6".

     

STEP 3:

Select the front face, command 'UCS' give the x and y coordinate in the front face horizontally and vertically respectively or click on face and select the front face. type the command 'PLAN' so that the front face is aligned correctly.

STEP 4:

Draw a line of 2" from the right side of the front view.By rectangle command, draw a rectangle 32" and 2'2"( as the thickness is given as 2")

STEP 5:

Move the rectangle to the line drawn earlier 2" from the right of the face.

     

STEP 6: Delete the line created earlier.Now with command '3DORBIT' orbit the object and select the rectangle.

STEP 7: Now give the command 'SUBTRACT' select the larger object then the smaller extrude rectangle in 2d wireframe model.

STEP 8:Dimensions are given by dim linear command by switching the UCS.

RESULT:

The 3d model of furniture element is created.

     

2).

3D MODEL OF ISOLATED FOOTING:

AIM: To create a 3d model of isolated footing

PROCEDURE: 

STEP 1: Create a rectangle of 4'*4' on the top view. Create another rectangle of 1'*1' on the top view, with comand 3do orbit the view to a suitable one with 'M'  move command move the small rectangle.

     

STEP 2: Click on the loft from the home toolbar and select the two rectangles to loft.

STEP 3:

Again go to the top view and create rectangle on top of the bigger rectangle of same size.click on extrude from the tool bar and select the created rectangle and give the extrude height as 6" and the direction of the extrusion is pointed bu the mouse.

    

STEP 4:

By using UCS command give the dimensions.

   

RESULT:

     

3)

3D MODEL OF AASTHO TYPE GIRDER

AIM: To create a 3d model of AASTHO type girder using AUTOCAD 3d

PROCEDURE:

STEP 1:

Click on front view use ucs command and make them x and y  axis in the front view plane

STEP 2:

Then by line command draw the I section with the given dimension. command l draw a line of 1' that is the top width of the girder.

with the line draw a 6" downwards. with snap on draw a line from the center of 1' and offser 3" on both sides such that the width of web becames 6"

STEP 3: 

Give a taper distance and join the web and the flange.mirrior the same on the other side.

The web is given a height of 1'6" offset the distance 1'6" from the end of tappering of the flange portion.Delete the center line drawn for the offset and also trim off the extra lines in flange.

STEP 4:

Extend the web to the offset line.Again offset 6" from the last line and taper the sides. mirrior the tapered portion to the other side. the sides shoud be tapered such that the bottom should be 1'6", draw a center line and offset 9" on both sides, then join the taper.

STEP 5:

Offset 6" downwards from the bottom horizontal line to define the height. to draw the taper at bottom 1'4" from the centre draw  a line and offset the cetre draw a line and offset 8" on both sides.

     

  STEP 6:

   With 3d orbit turn the view  and draw a line of 10' in z direction. click on sweep from the home toolbar and select the section and then the path through which the section to be swept.

   

 RESULT:

The 3D model of the AASTHO girder is drawn.

 

 4)

3D MODEL OF A DROP COLUMN WITH PANEL 

AIM: To draw the 3d model of a drop column with panel section and shows its isometric view.

PROCEDURE: 

STEP1: Create a circle of diameter 1'6" in the top view.

STEP2: Create a region by region command and select the rectangle. Extrude it with extrude in home toolbar and give a distance of 10'

    

STEP3: Create a cone by clicking on cone from the home toolbar.click on diameter and give the base diameter as 1'6"

STEP4: Click on top radius and give the value as 1'6" and give the height of the cone as 1'

STEP5: Place the frustum of cone on top of the extruded circle i.e the column in the front view with snap option place such that the center of two objects coincide also place the centre of frustum with centre of colun in the top view.

STEP6: In top view,create a rectangle of dimension 4'6"*4'6".Extrude it to a height of 6"

     

Step 7: in the top view, place the rectangle at the centre and also adjust in the front view or give move command as the rectangle is at bottom in the front view.

   

RESULT:

The 3d model of a drop column with panel has been drawn section  and isometric view is also shown.

 

5)

3D MODEL OF WALL 

AIM: To draw a 3d model of a wall

PROCEDURE: 

STEP1: Draw a rectangle of 10'*9' create a line in the centre and offset 1.5" on both sides as 3" is the width of door opening.

STEP2: Use the command 'BO' for boundary and create the region both the region on the either side of the door opening.

  

STEP3: Extrude the region to a height of 12'6" total height

    

STEP4: Create a rectangle in place of door in the top view.move the rectangle in z axis at a height of 7' from the bottom.

   

STEP5: Go to front view and draw a line from the centre of the moved line of door.draw slanting line from the total height from the centre intersecting the edge.

STEP6: Mirrior the line to the other side. Draw the horizontal line to jon.

  

STEP7:Trim off the excess line and the centre line and join the triangle with join command.create a region command in the triangle created.

STEP8: Select the extruded rectangle and with the help of grip bring it down to the level of the triangle base on both sided extruded the rectangle of door to a height equal to base of triangle.

RESULT:

3D Model of wall is drawn.