Why Revolved cut in Solidworks? - Purpose & Use Cases

The Big Idea

Discover how one simple revolve can replace dozens of manual cuts and save hours of work!

The Scenario

Imagine trying to create a hollow shape by manually carving out material from a 3D model using simple cuts or multiple sketches. You might try to slice it piece by piece, rotating and adjusting each cut manually.

The Problem

This manual approach is slow and frustrating. It's easy to make mistakes, and the process can be very time-consuming because you have to carefully position each cut. Adjusting the design later means redoing many steps.

The Solution

The Revolved cut lets you create complex hollow shapes by revolving a single sketch around an axis to remove material. It's fast, precise, and easy to adjust, saving you time and reducing errors.

Before vs After

✗ Before

Multiple cuts at different angles and positions

✓ After

RevolvedCut(sketch, axis, angle)

What It Enables

With Revolved cut, you can quickly create smooth, symmetrical hollow features that would be very hard to do manually.

Real Life Example

Designing a bottle with a hollow neck or a pipe with an internal groove is simple using a Revolved cut, instead of trying to carve it out piece by piece.

Key Takeaways

Manual cutting is slow and error-prone.

Revolved cut uses one sketch rotated around an axis to remove material.

This method is faster, more accurate, and easier to update.

Practice

1.

What does the Revolved Cut feature do in SolidWorks?

easy

A. Adds material by extruding a sketch

B. Mirrors a feature across a plane

C. Creates a flat surface on a part

D. Removes material by rotating a sketch around an axis

Solution

1. Step 1: Understand Revolved Cut purpose

   Revolved Cut removes material by spinning a sketch around a defined axis.

2. Step 2: Compare with other features

   Extrude adds material, mirror duplicates features, and flat surface creation is unrelated.

3. Final Answer:

   Removes material by rotating a sketch around an axis -> Option D

4. Quick Check:

   Revolved Cut = Remove by rotation [OK]

Hint: Revolved cut spins sketch to remove material [OK]

Common Mistakes:

• Confusing cut with extrude
• Thinking it adds material
• Mixing with mirror feature

2.

Which of the following is the correct syntax to start a Revolved Cut in SolidWorks?

Insert > Cut > Revolved Cut

easy

A. Insert > Boss/Base > Revolved Cut

B. Insert > Hole Wizard > Revolved Cut

C. Insert > Cut > Revolved Cut

D. Insert > Surface > Revolved Cut

Solution

1. Step 1: Recall menu path for Revolved Cut

   The correct menu path is Insert > Cut > Revolved Cut.

2. Step 2: Eliminate incorrect options

   Boss/Base adds material, Surface is for surfaces, Hole Wizard is for holes, not revolved cuts.

3. Final Answer:

   Insert > Cut > Revolved Cut -> Option C

4. Quick Check:

   Menu path = Insert > Cut > Revolved Cut [OK]

Hint: Revolved Cut is under Insert > Cut menu [OK]

Common Mistakes:

• Choosing Boss/Base instead of Cut
• Confusing Hole Wizard with Revolved Cut
• Selecting Surface instead of Cut

3.

Given a sketch of a semicircle with radius 10 mm and an axis along the diameter, what will be the result of a Revolved Cut feature?

medium

A. A solid hemisphere cut with 10 mm radius

B. A hollow sphere cut with 10 mm radius

C. A full cylinder cut with 10 mm radius

D. A hollow cylinder cut with 10 mm radius

Solution

1. Step 1: Understand sketch and axis

   A semicircle revolved around its diameter axis creates a solid hemisphere shape.

2. Step 2: Identify cut shape

   The Revolved Cut removes material in a solid hemisphere form, not a hollow sphere or cylinder.

3. Final Answer:

   A solid hemisphere cut with 10 mm radius -> Option A

4. Quick Check:

   Semicircle revolve = solid hemisphere cut [OK]

Hint: Semicircle revolve around diameter = solid hemisphere cut [OK]

Common Mistakes:

• Thinking it creates a hollow cylinder cut
• Confusing cylinder with sphere
• Assuming full cylinder cut

4.

Why does a Revolved Cut fail when the sketch is not closed?

medium

A. Because the sketch cannot form a solid profile to revolve

B. Because the axis is missing

C. Because the sketch is too complex

D. Because the material thickness is zero

Solution

1. Step 1: Understand sketch closure requirement

   Revolved Cut needs a closed sketch to create a solid profile for cutting.

2. Step 2: Identify failure cause

   An open sketch cannot form a solid shape when revolved, causing the feature to fail.

3. Final Answer:

   Because the sketch cannot form a solid profile to revolve -> Option A

4. Quick Check:

   Closed sketch needed for revolve [OK]

Hint: Sketch must be closed to revolve cut [OK]

Common Mistakes:

• Blaming missing axis instead of open sketch
• Assuming complexity causes failure
• Confusing material thickness with sketch closure

5.

You want to create a groove inside a cylindrical part using Revolved Cut. Which two things must you ensure before applying the feature?

hard

A. The sketch is closed and the part is flat

B. The sketch is closed and the axis is defined

C. The sketch is open and the axis is undefined

D. The sketch is open and the part is hollow

Solution

1. Step 1: Identify sketch requirements

   The sketch must be closed to form a valid profile for cutting.

2. Step 2: Confirm axis definition

   A clear axis must be defined to revolve the sketch correctly.

3. Final Answer:

   The sketch is closed and the axis is defined -> Option B

4. Quick Check:

   Closed sketch + defined axis = successful revolved cut [OK]

Hint: Always close sketch and define axis before revolved cut [OK]

Common Mistakes:

• Using open sketches
• Not defining axis
• Assuming flat or hollow part is required