1. The document provides steps to create a 3D model of a chair in a CAD program using tools like extrude, fillet, mirror, and datum. 2. It describes drawing a square base, adding rounded corners with fillet, extruding sides up and adding a horizontal datum plane. 3. The legs are then drawn in sketches and mirrored, extruded, and rounded to form the chair legs, and circular supports are added between the legs before adding a rounded, labeled back piece.

1. Name: Mafaz Ahmed
Roll No: 1882

2. Steps:
1. Select NEW>SOLID>OK.
2. Now select EXTRUDE>PLACEMENT>DEFINE and then select FRONT and click OK.
3. Draw a square of height and width of 20.

3. 4.Now draw a CIRCULAR FILLET between two entities to make the corner of rectangle circular and with
the help of SPINE, make the two sides circuler and click OK as shown in the figure.

4. 5. Make the DEPTH of 1 and click OK.
6. Select DATUM tool from the right toolbar and select one side of translation 4.00 and click OK.

5. 7. Now click OK. Then select Sketch and click OK. Now draw a line on reference line for mirroring. Draw a
leg on one side as shown in the figure.
9. Now draw a mirror image on other side.

6. 10.select OK and then Select EXTRUDE to show image in 3D. Set the DEPTH of 2 and then click OK.
11. now repeat the same process for the two remaining legs. And round the legs by using ROUND tool
from the right toolbar.

7. 12. Now for the support between the legs, we will EXTRUDE>PLACEMENT>DEFINE and select the side
on which we are going to draw and click OK. Now use CIRCLE END POINT to draw support and set the
DEPTH of 11.50 as shown in figure.
13. Then click OK. Draw other using the same steps.

8. 14. Now select DATUM tool From the right toolbar to draw the tag(BACK SIDE) of the CHAIR.
Then click on the SKETCH tool from the side toolbar and draw as shown in the figure. Set the DEPTH to
1.7.
15. Select OK and in the end ROUND the all corner to give final finishing.