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

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

• Screws and Bolts

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

• Vases and Pots

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

• Glasses and Cups

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

• Wheels and Tires

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

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:

• Select the object to be revolved.

• Specify the Axis Start Point.

• Specify the degrees.

• Specify the Axis Endpoint.

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

Match the following modifiers with their correct descriptions:

• Axis Start Point

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

• Object, “O”

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

• Angle of Revolution

• Specifies the first point of the axis of revolution.

• Start Angle

• Specifies the objects to be revolved about an axis.

• Axis Endpoint

• Sets the endpoint for the axis of revolution.

Match the following misconceptions with their answers:

• My object isn't solid after revolving

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

• I can't get my object to revolve.

• Drawing a center axis ensures precision.

• Do I need a drawn center axis?

• Just enter 180 degrees during the command.

• Can I revolve an object only halfway?

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

• My object self-intersects.

• Zoom into the line intersections.

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