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Practice Question A

Nut and Bolt

Here, we will create a Nut and Bolt in AutoCAD 3D.

Below is the object:

Practice Question A

Note: It would be best if you first tried creating the above figure by yourself

Solution:

Convert your display to:

  • 3D Modeling
  • SW Isometric view control
  • Turn ON the Ortho Mode
  • Set the Limits accordingly.

The steps to create the above figure are listed below:

  1. Draw a hexagon of radius 20.
  2. Draw a circle of radius 10. The center points of hexagon and circle are the same.
  3. Draw a circle circumscribing the hexagon of radius 20, as shown below:
    Practice Question A
  4. Select the Extrude Now, extrude the inner circle and hexagon with a height of 20.
  5. Select the Subtract command and subtract circle from the hexagon, as shown below:
    Practice Question A
  6. Extrude the outer circle with a height of 20.
  7. Select the Fillet command and apply a fillet of radius 3 on the upper and lower edge of the outer circle, as shown below:
    Practice Question A
  8. Select the Intersect command and select both the created solids < press Enter, as shown below:
    Practice Question A
    Change the view control to TOP.
  9. Select the Helix command < specify the center as the center of the inner circle < specify the base radius of 10 < specify top radius 10 < specify number of turns 10 < specify helix height 20 < press Enter.
    Change the view control again to SW Isometric.
  10. Draw the circle of radius 0.6 anywhere on display < select the sweep command < select the circle of radius 0.6 and press Enter < select helix and press Enter.
    The object will now appear as:
    Practice Question A
  11. Now, again draw the figure shown in step 3:
    Practice Question A
  12. Select the Extrude command < Extrude the inner circle with the height of 60 and outer hexagon with height 20.
  13. Extrude the outer circle with a height of 20.
  14. Select the Fillet command and apply a fillet of radius 3 on the upper and lower edge of the outer circle.
  15. Select the Intersect command and select both the hexagon and outer circle< press Enter. An image will appear as shown below:
    Practice Question A
  16. Select the Helix command < specify the center as the center of the inner circle < specify the base radius of 10 < specify top radius 10 < specify number of turns 10 < specify helix height -40 (in downward direction) < press Enter.
  17. Draw the circle of radius 0.6 anywhere on display < select the sweep command < select the circle of radius 0.6 and press Enter< select helix and press Enter, as shown below:

  18. Practice Question A
  19. Select subtract < subtract helix from the inner circle, as shown below:
    Practice Question A

Both Nut and Bolt will now appear as:

Practice Question A
Next TopicBoolean Operations




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