4.27-4.29 REVOLVE

Which command in AutoCAD allows you to transform a 2D shape into a 3D object?

• Revolve

• Twist

• Spin

• Rotate

Match the following applications with their correct descriptions:

• Domes and Roofing Structures

• Designing drinking objects by revolving their profile, allowing for smooth designs.

• Screws and Bolts

• Designing decorative objects by revolving a profile around an axis, enabling aesthetic creations.

• Wheels and Tires

• Creating objects for vehicles by revolving a 2D profile around an axis.

• Vases and Pots

• Designing architectural elements by revolving a profile, providing geometrically stable and aesthetic forms.

• Glasses and Cups

• Developing objects by revolving a profile, ensuring consistent threading and accurate geometric properties.

Match the following case studies with their appropriate descriptions:

Groups:

(a) The Space Needle

,

(b) Timpani Drums

,

(c) Drum Brakes

• 
• A structure designed by John Graham & Company in Seattle.

• A percussion instrument with a simple structure having its roots in ancient times.

• 
• 
• Drum rotation to enhance brake shoe pressure in three distinct ways

• ​ (a)   represent the angle of rotation, while an ​ (b)   serves as a reference point for executing a revolve command.

• degrees
• axis
• revolve
• radius

The shortcut for the 'revolve' command in AutoCAD is ___.

Arrange the following steps in the correct order to use the revolve command:

• Specify the Axis Start Point.

• Type 'REV' or select the 'Revolve' Command

• Specify the degrees.

• Select the object to be revolved.

• Specify the Axis Endpoint.

Match the following modifiers with their correct descriptions:

• Start Angle

• Specifies the objects to be revolved about an axis.

• Object, “O”

• Specifies an offset for the revolution from the plane of the object being revolved.

• Angle of Revolution

• Specifies how far the selected object revolves about the axis.

• Axis Start Point

• Sets the endpoint for the axis of revolution.

• Axis Endpoint

• Specifies the first point of the axis of revolution.

Match the following misconceptions with their answers:

• I can't get my object to revolve.

• Zoom into the line intersections.

• Do I need a drawn center axis?

• Use 'undo revolve', then 'join' all lines together.

• My object isn't solid after revolving

• Ensure the axis doesn't intersect with the object.

• My object self-intersects.

• Just enter 180 degrees during the command.

• Can I revolve an object only halfway?

• Drawing a center axis ensures precision.

List three products that can be created with the 'revolve' command in AutoCAD.

How confident do you feel using the 'revolve' command in AutoCAD after our lesson?

• Very confident - I can use it without help

• Somewhat confident - I might need a little help

• Not confident - I don’t understand how to use it

• Not at all confident - I didn’t understand the lesson