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

AIM: To create 3D model and view of: 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…

MUNAGALA NARESH
updated on 27 Oct 2022

AIM: To create 3D model and view of:

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

Q1.DRAWING OF 3D FURNITURE ELEMENT:

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 toolbar or box command, click on length, give the length as 3 and width as 26:Height is to be specified, give the height as 2'6"

Step 3:

Select the front face, command Tucs" 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 of dimension 32" and 2'4" (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 "3do" orbit the object and select the rectangle.

Step 7: Extrude the rectangle to -z axis 2'4" leaving 2" thickness.Now give the command "Subtract" select the larger object then the smaller extruded 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.

Q2. 3D MODEL OF ISOLATED FOOTING:

Aim: To create a 3d model of isolated footing

Procedure:

Step 1: Create a rectangle of 2' x2' on the top view.Create another rectangle of 1'xl' on the top view.

Step 2: with command "3do" 3d orbit, orbit the view to a suitable one. With "M" move command move the small rectangle of Txt by 2' in z direction with ortho on.

Step 3: Click on the loft from the home toolbar and select the two rectangles to loft.

Step 4:Again, go to the top view and create rectangle on top of the bigger rectangle of same size Click on extrude from the home toolbar and select the created rectangle and give the extrude height as 6" and the direction of extrusion is pointed by the mouse.

Step 5 :By using UCS command give the dimensions.

Result:

Q3.3D MODEL OF A 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 the 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 T 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 offset 3" on both sides such that the width of web becomes 6"

Step 3:Give a taper distance and join the web and the flange Mirror the same on the other side

The web is given a height of 16, offset the distance 16 from the end of tapering of the flange portion (1) Delete the center line drawn for the offset and also trim off the extra lines in flange.

Step 4:Extend the web to the offsite line Again offset 6 from the last line and taper the sides Mirror the tapered portion to the other side. The sides should be tapered such that the bottom should be t'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 T4 from the Centre draw a line and offsct 87 on both sides.

Step 6:Extend the 6" offsite line and trim the rest of lines Draw the vertical line downwards and the tapering also

Step 7 :With 3d orbit turn the view and draw a line of 10 in z direction Click on swoep from the home toolbar and select the section and then the path through which the section to be sweptic the line

RESULT

Q4.3D MODEL OF A DROP COLUMN WITH PANEL

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

Procedure:

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

Step 2:Create a region-by-region command and select the rectangle Extrude it with extrude in home toolbar and give a distance of 10'

Step 3:Create a cone by clicking on cone from the home toolbar Click on diameter and give the base diameter as 1'6".

Step 4:Click on top radius and give the value as 1'6" and give the height of the cone as 1"

Step 5:Place the frustum of cone on top of the extruded circle ie the column in the front view, with snap option place such that the center of two objects coincide also place the center of frustum with center of column in the top view.

Step 6. in top view, create a rectangle of dimension 4'6" x4'6" Extrude it to a height of 6".

Step 7:In the top view place the rectangle at the center of cone and also adjust in the front view or give move command and give the coordinate

as 0,10',0 as the rectangle is at bottom in the front view

RESULT :

Q5.3D MODEL OF WALL

Aim: To draw a 3d model of wall.

Procedure :

Step 1:Draw a rectangle of 10' x 9"Create a line in the center and offset 1.5" on both sides as 3" is the width of door opening.

Step 2:Use the command "BO" for boundary and create the region ie, both the region on either side of the door opening.

Step 3: Extrude the region to a height of 12'6" total height.

Step 4: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.

Step 5: go to front view and draw a line from the center of the moved line of door. Draw slanting line from the total height from the center line intersecting the edge.

Step 6: Mirror the line to the other side Draw the horizontal line to join.

Step 7: trim off the excess line and the center line and join the triangle with join command Create a region with region command in the created.

Step 8. Select the extruded rectangle and with the help of grip bring it down to the level of the triangle base on both sided Extrude the rectangle of door to a height equal to base of triangle