Wall thickness analysis in Solidworks - Real Business Scenario

Scenario Mode

👤 Your Role: You are a product engineer at a manufacturing company.

📋 Request: Your manager wants you to analyze the wall thickness of a new plastic part to ensure it meets quality standards and identify any areas that are too thin or too thick.

📊 Data: You have access to the 3D CAD model of the plastic part in SolidWorks. The model includes all geometric details needed for wall thickness measurement.

🎯 Deliverable: Create a detailed wall thickness analysis report with visualizations highlighting thin and thick areas, and provide recommendations for design improvements.

Sample Data

Section	Min Thickness (mm)	Max Thickness (mm)	Average Thickness (mm)
Front Wall	1.2	3.5	2.4
Back Wall	1.0	3.0	2.1
Side Wall Left	0.8	2.8	1.9
Side Wall Right	0.9	3.2	2.0
Top Wall	1.5	4.0	2.7
Bottom Wall	1.3	3.8	2.5

1

Step 1: Open the 3D CAD model in SolidWorks and activate the Wall Thickness Analysis tool.

In SolidWorks, go to Tools > Evaluate > Thickness Analysis.

Expected Result

The Wall Thickness Analysis dialog opens, ready to analyze the model.

2

Step 2: Set the minimum and maximum thickness thresholds based on design requirements.

Set Minimum Thickness = 1.0 mm, Maximum Thickness = 4.0 mm in the Thickness Analysis settings.

Expected Result

The analysis will highlight areas thinner than 1.0 mm in red and thicker than 4.0 mm in blue.

3

Step 3: Run the wall thickness analysis on the entire part.

Click 'Calculate' in the Thickness Analysis dialog.

Expected Result

The model displays a color map showing thickness variations across all walls.

4

Step 4: Record the minimum, maximum, and average thickness values for each wall section.

Use the Thickness Analysis results and measure tool to note thickness values for Front Wall, Back Wall, Side Walls, Top Wall, and Bottom Wall.

Expected Result

Thickness data table is created with values matching the sample data.

5

Step 5: Create a dashboard report with a color-coded 3D model view and a summary table of thickness values.

Export screenshots of the color-coded model and insert the thickness data table into a report document.

Expected Result

A clear report showing thin areas in red, thick areas in blue, and a table summarizing thickness per section.

6

Step 6: Provide recommendations to improve design based on analysis results.

Identify walls thinner than 1.0 mm for reinforcement and walls thicker than 4.0 mm for possible material reduction.

Expected Result

Recommendations include increasing thickness on Side Wall Left (0.8 mm) and reviewing Top Wall thickness for material optimization.

Final Result

Wall Thickness Analysis Report

+----------------+----------------+----------------+-------------------+
| Section        | Min Thickness  | Max Thickness  | Average Thickness |
+----------------+----------------+----------------+-------------------+
| Front Wall     | 1.2 mm         | 3.5 mm         | 2.4 mm            |
| Back Wall      | 1.0 mm         | 3.0 mm         | 2.1 mm            |
| Side Wall Left | 0.8 mm (Thin)  | 2.8 mm         | 1.9 mm            |
| Side Wall Right| 0.9 mm         | 3.2 mm         | 2.0 mm            |
| Top Wall       | 1.5 mm         | 4.0 mm (Thick) | 2.7 mm            |
| Bottom Wall    | 1.3 mm         | 3.8 mm         | 2.5 mm            |
+----------------+----------------+----------------+-------------------+

Color Map Legend:
- Red: Thickness < 1.0 mm (Too Thin)
- Blue: Thickness > 4.0 mm (Too Thick)
- Green: Within acceptable range

3D Model View: Color-coded wall thickness highlighting critical areas.

✓Side Wall Left is thinner than the minimum recommended thickness (0.8 mm < 1.0 mm), which may cause structural weakness.

✓Top Wall reaches the maximum thickness limit (4.0 mm), suggesting potential for material reduction.

✓Most walls fall within acceptable thickness ranges, ensuring overall part quality.

✓Design adjustments are recommended to reinforce thin areas and optimize thick sections for cost and weight savings.

Bonus Challenge

Create an automated SolidWorks macro that runs the wall thickness analysis and generates the report with color-coded images and thickness tables.

Show Hint

Use SolidWorks API with VBA or C# to automate Thickness Analysis tool execution, capture screenshots, and export data to a formatted report.

Practice

1.

What is the main purpose of wall thickness analysis in SolidWorks?

easy

A. To simulate the motion of assemblies

B. To find thin and thick areas in 3D parts

C. To create 2D drawings from 3D models

D. To measure the weight of the part

Solution

1. Step 1: Understand wall thickness analysis function

   Wall thickness analysis identifies thin and thick regions in a 3D model to help improve design.

2. Step 2: Compare options with purpose

   Only To find thin and thick areas in 3D parts matches the purpose of finding thin and thick areas; others relate to different functions.

3. Final Answer:

   To find thin and thick areas in 3D parts -> Option B

4. Quick Check:

   Wall thickness analysis = Find thin/thick areas [OK]

Hint: Wall thickness analysis finds thin/thick spots fast [OK]

Common Mistakes:

• Confusing wall thickness analysis with weight measurement
• Thinking it creates 2D drawings
• Assuming it simulates motion

2.

Which of the following is the correct step to start a wall thickness analysis in SolidWorks?

Tools > Evaluate > Wall Thickness

easy

A. Tools > Evaluate > Wall Thickness

B. Insert > Features > Wall Thickness

C. File > New > Wall Thickness

D. View > Toolbars > Wall Thickness

Solution

1. Step 1: Recall menu path for wall thickness analysis

   Wall thickness analysis is accessed via Tools > Evaluate > Wall Thickness in SolidWorks.

2. Step 2: Verify options against correct menu

   Only Tools > Evaluate > Wall Thickness matches the correct menu path; others are incorrect or unrelated.

3. Final Answer:

   Tools > Evaluate > Wall Thickness -> Option A

4. Quick Check:

   Correct menu path = Tools > Evaluate > Wall Thickness [OK]

Hint: Wall thickness is under Tools > Evaluate [OK]

Common Mistakes:

• Looking under Insert or File menus
• Confusing toolbars with analysis tools
• Trying to find wall thickness in View menu

3.

Given a part with varying thickness, what does the color red typically indicate in the wall thickness analysis color map?

medium

A. Areas with no thickness data

B. Areas that are too thick

C. Areas with average thickness

D. Areas that are too thin

Solution

1. Step 1: Understand color coding in wall thickness analysis

   Red usually highlights thin areas that may cause weakness or manufacturing issues.

2. Step 2: Match color meaning to options

   Red means too thin, not thick or average; no thickness data is usually gray or blank.

3. Final Answer:

   Areas that are too thin -> Option D

4. Quick Check:

   Red color = Thin areas [OK]

Hint: Red means thin spots to fix [OK]

Common Mistakes:

• Thinking red means thick areas
• Confusing red with average thickness
• Assuming red means missing data

4.

In a wall thickness analysis, the color map does not update after changing the minimum thickness value. What is the most likely cause?

medium

A. The analysis was not rerun after changing the value

B. The part has no thin areas

C. The software crashed and needs reinstalling

D. The color map is locked and cannot change

Solution

1. Step 1: Identify typical workflow for updating analysis

   Changing parameters requires rerunning the analysis to update results and color map.

2. Step 2: Evaluate options for why color map stays same

   Not rerunning analysis is common cause; other options are less likely or incorrect.

3. Final Answer:

   The analysis was not rerun after changing the value -> Option A

4. Quick Check:

   Rerun analysis after changes = update color map [OK]

Hint: Always rerun analysis after parameter changes [OK]

Common Mistakes:

• Assuming no thin areas means no update needed
• Thinking software crash causes this issue
• Believing color map can be locked

5.

You want to improve manufacturability by ensuring no wall thickness is below 2 mm. After running wall thickness analysis, you find red areas indicating thickness below 2 mm. What should you do next?

hard

A. Ignore the red areas if the part looks fine visually

B. Decrease the minimum thickness value to hide red areas

C. Modify the design to increase thickness in red areas

D. Export the model without changes

Solution

1. Step 1: Interpret red areas in analysis

   Red areas show thickness below 2 mm, which may cause manufacturing problems.

2. Step 2: Decide corrective action

   To improve manufacturability, increase thickness in those areas rather than ignoring or hiding them.

3. Final Answer:

   Modify the design to increase thickness in red areas -> Option C

4. Quick Check:

   Fix thin areas by design change [OK]

Hint: Fix red areas by increasing thickness [OK]

Common Mistakes:

• Ignoring red areas because they look okay
• Changing analysis settings to hide problems
• Exporting without fixing design