Revolved boss/base in Solidworks - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding the Revolved Boss/Base Feature

Which statement best describes the purpose of the Revolved Boss/Base feature in SolidWorks?

A It creates a 3D solid by revolving a 2D sketch around an axis.

B It extrudes a 2D sketch linearly to create a solid.

C It creates a surface by lofting between multiple sketches.

D It applies a fillet to the edges of a solid body.

💡 Hint

Think about how a 2D shape can be turned into a 3D object by spinning it around a line.

The Revolved Boss/Base feature takes a 2D sketch and spins it around a chosen axis to form a 3D solid. This is useful for creating symmetrical parts like cylinders or cones.

❓ dax_lod_result

intermediate

Calculating Volume of a Revolved Solid

You have a table with a column 'Radius' and a column 'Height' representing a cylinder created by revolving a rectangle. Which DAX measure correctly calculates the volume of this cylinder?

A Volume = SUMX(Table, PI() * Table[Radius]^2 + Table[Height])

B Volume = SUMX(Table, 2 * PI() * Table[Radius] * Table[Height])

C Volume = SUMX(Table, PI() * Table[Radius] * Table[Height]^2)

D Volume = SUMX(Table, PI() * Table[Radius]^2 * Table[Height])

💡 Hint

Recall the formula for the volume of a cylinder: π × radius² × height.

The correct formula for the volume of a cylinder is π times radius squared times height. Option D correctly applies this formula in DAX using SUMX to calculate the total volume.

❓ visualization

advanced

Best Visualization for Revolved Boss/Base Dimensions

You want to create a dashboard showing the distribution of revolved part volumes and their heights. Which visualization type best communicates this information clearly?

A A pie chart showing the count of parts by volume ranges.

B A scatter plot with Volume on the Y-axis and Height on the X-axis.

C A stacked bar chart showing total volume by height categories.

D A line chart showing volume changes over time.

💡 Hint

Think about how to show the relationship between two numeric variables.

A scatter plot is ideal to show how volume and height relate for each part, allowing you to see patterns or clusters. Pie charts and stacked bars are less effective for two continuous variables.

❓ data_modeling

advanced

Modeling Revolved Part Data for Analysis

You have multiple tables: Parts, Dimensions, and Materials. To analyze revolved boss/base parts, which relationship setup is best?

A Create a one-to-many relationship from Parts to Dimensions using PartID, and a many-to-one from Materials to Parts using MaterialID.

B Create a many-to-many relationship between Parts and Dimensions, and no relationship with Materials.

C Create a one-to-many relationship from Dimensions to Parts, and a one-to-one from Materials to Parts.

D Create no relationships and use LOOKUPVALUE in measures.

💡 Hint

Consider how parts relate to their dimensions and materials in real life.

Each part can have multiple dimensions, so Parts to Dimensions is one-to-many. Each part has one material, so Materials to Parts is many-to-one. This setup supports efficient analysis.

🔧 Formula Fix

expert

Debugging a Revolved Boss/Base Volume Calculation

Given this DAX measure to calculate volume of revolved parts, what error will it produce?

Volume = SUMX(Parts, PI * Parts[Radius]^2 * Parts[Height])

A No error; the measure calculates volume correctly.

B TypeError because Parts[Radius] is not a number.

C SyntaxError because PI is used without parentheses.

D Runtime error due to missing aggregation on Height.

💡 Hint

Check how the PI constant is used in DAX.

In DAX, PI is a function and must be called with parentheses: PI(). Using PI without parentheses causes a syntax error.

Practice

1.

What is the main purpose of the Revolved Boss/Base feature in SolidWorks?

easy

A. To measure distances between parts

B. To cut holes in a 3D model

C. To add colors to a 3D model

D. To create 3D shapes by spinning a 2D sketch around an axis

Solution

1. Step 1: Understand the Revolved Boss/Base function

   This feature creates 3D shapes by revolving a 2D sketch around a chosen axis.

2. Step 2: Compare options to the function

   Only To create 3D shapes by spinning a 2D sketch around an axis describes spinning a 2D sketch to form a 3D shape, matching the feature's purpose.

3. Final Answer:

   To create 3D shapes by spinning a 2D sketch around an axis -> Option D

4. Quick Check:

   Revolved Boss/Base = 3D shape by revolving sketch [OK]

Hint: Remember: revolve means spin a sketch around an axis [OK]

Common Mistakes:

• Confusing revolve with cut or color features
• Thinking it measures distances
• Assuming it creates flat sketches

2.

Which of the following is the correct syntax to start a Revolved Boss/Base feature in SolidWorks?

1. Select sketch
2. Choose Revolved Boss/Base
3. Select axis of revolution
4. Set angle

easy

A. Select sketch, choose Revolved Boss/Base, select axis, set angle

B. Select axis, choose Revolved Boss/Base, select sketch, set angle

C. Choose Revolved Boss/Base, select angle, select sketch, select axis

D. Set angle, select sketch, choose Revolved Boss/Base, select axis

Solution

1. Step 1: Identify the correct order of operations

   You must first select the 2D sketch, then start the Revolved Boss/Base feature, then pick the axis, and finally set the angle.

2. Step 2: Match the steps to options

   Only Select sketch, choose Revolved Boss/Base, select axis, set angle follows this logical and correct sequence.

3. Final Answer:

   Select sketch, choose Revolved Boss/Base, select axis, set angle -> Option A

4. Quick Check:

   Correct order = sketch -> feature -> axis -> angle [OK]

Hint: Always pick sketch before axis in revolve setup [OK]

Common Mistakes:

• Selecting axis before sketch
• Setting angle before choosing feature
• Skipping axis selection

3.

Given a semicircle sketch revolved 180 degrees around its diameter axis using Revolved Boss/Base, what 3D shape is created?

medium

A. A half sphere

B. A cylinder

C. A full sphere

D. A cone

Solution

1. Step 1: Understand the sketch and revolution angle

   A semicircle revolved 180 degrees around its diameter axis will create half of a sphere shape.

2. Step 2: Match shape to revolution

   Revolving 180 degrees (half circle) of a semicircle forms a half sphere, not a full sphere or cylinder.

3. Final Answer:

   A half sphere -> Option A

4. Quick Check:

   Semicircle + 180° revolve = half sphere [OK]

Hint: Half circle revolved 180° makes half sphere [OK]

Common Mistakes:

• Assuming 180° revolve makes full sphere
• Confusing semicircle with rectangle
• Thinking it creates a cylinder

4.

Identify the error in this Revolved Boss/Base setup:
1. Sketch is a closed profile
2. Axis selected is a line outside the sketch plane
3. Revolution angle set to 360 degrees
What is the likely problem?

medium

A. Sketch must be open, not closed

B. Angle cannot be 360 degrees

C. Axis must lie in the sketch plane or intersect it

D. Axis line must be parallel to sketch plane

Solution

1. Step 1: Check axis position relative to sketch

   The axis must be in or intersect the sketch plane to revolve the profile correctly.

2. Step 2: Analyze given axis outside sketch plane

   An axis outside the sketch plane will cause errors or no valid revolution.

3. Final Answer:

   Axis must lie in the sketch plane or intersect it -> Option C

4. Quick Check:

   Axis position error = axis must intersect sketch plane [OK]

Hint: Axis must cross or be in sketch plane for revolve [OK]

Common Mistakes:

• Thinking sketch must be open
• Believing 360° angle is invalid
• Assuming axis must be parallel to sketch plane

5.

You want to create a vase shape by revolving a profile sketch around an axis. The profile is open on one side. What must you do to successfully use Revolved Boss/Base?

hard

A. Select multiple axes for revolution

B. Close the profile sketch before revolving

C. Set the revolution angle to less than 180 degrees

D. Use Revolved Cut instead of Boss/Base

Solution

1. Step 1: Understand profile requirements for revolve

   The profile must be a closed sketch to create a solid 3D shape with Revolved Boss/Base.

2. Step 2: Fix open profile issue

   Closing the profile ensures the revolve creates a solid vase shape without errors.

3. Final Answer:

   Close the profile sketch before revolving -> Option B

4. Quick Check:

   Closed profile needed for solid revolve [OK]

Hint: Always close your sketch profile before revolve [OK]

Common Mistakes:

• Trying to revolve open profiles
• Using Revolved Cut instead of Boss/Base incorrectly
• Thinking multiple axes can be selected