Bill of Materials (BOM) generation in Solidworks - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to insert a BOM table into the active drawing.

Solidworks

Dim swDraw As ModelDoc2
Dim swBOMTable As BomTableAnnotation
Set swDraw = swApp.ActiveDoc
Set swBOMTable = swDraw.InsertBomTable2([1], 0, 0, "", swBomTableAnchorType_e.swBomTableAnchorType_TopLeft, 0, 0, False, False)

Drag options to blanks, or click blank then click option'

AswBomType_e.swBomType_PartsOnly

BswBomType_e.swBomType_TopLevelOnly

CswBomType_e.swBomType_Indented

DswBomType_e.swBomType_IndentedTopLevel

Attempts:

3 left

💡 Hint

Common Mistakes

Using a BOM type that shows assemblies instead of parts.

The InsertBomTable2 method requires the BOM type as the first argument. swBomType_e.swBomType_PartsOnly inserts a parts-only BOM.

2fill in blank

medium

Complete the code to set the BOM table to show quantities.

Solidworks

Dim swBOMTable As BomTableAnnotation
' Assume swBOMTable is already set
swBOMTable.ShowQuantity = [1]

Drag options to blanks, or click blank then click option'

ATrue

B0

CFalse

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric values like 0 or 1 instead of Boolean.

The ShowQuantity property expects a Boolean value. Setting it to True enables quantity display.

3fill in blank

hard

Fix the error in the code to get the BOM table from the drawing sheet.

Solidworks

Dim swSheet As Sheet
Dim swBOMTable As BomTableAnnotation
Set swSheet = swDraw.GetCurrentSheet()
Set swBOMTable = swSheet.GetBomTable([1])

Drag options to blanks, or click blank then click option'

AswBomType_e.swBomType_PartsOnly

B1

C-1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using 1 which causes an out-of-range error.

The GetBomTable method uses zero-based index. Use 0 to get the first BOM table.

4fill in blank

hard

Fill both blanks to set the BOM table's configuration and update it.

Solidworks

swBOMTable.Configuration = [1]
swBOMTable.UpdateTable( [2] )

Drag options to blanks, or click blank then click option'

A"Default"

BTrue

CFalse

D"CustomConfig"

Attempts:

3 left

💡 Hint

Common Mistakes

Using a Boolean for configuration or a string for UpdateTable.

Set the BOM configuration to the string "Default" and call UpdateTable with True to refresh the BOM.

5fill in blank

hard

Fill all three blanks to create a BOM, set its type, and anchor it to the top-left.

Solidworks

Set swBOMTable = swDraw.InsertBomTable2([1], 0, 0, "", [2], 0, 0, [3], False)

Drag options to blanks, or click blank then click option'

AswBomType_e.swBomType_Indented

BswBomTableAnchorType_e.swBomTableAnchorType_TopLeft

CTrue

DswBomType_e.swBomType_PartsOnly

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up BOM types or anchor constants, or forgetting the Boolean.

Use swBomType_e.swBomType_PartsOnly for the BOM type, swBomTableAnchorType_e.swBomTableAnchorType_TopLeft to anchor the BOM, and True to show balloon annotations.

Practice

1.

What is the primary purpose of a Bill of Materials (BOM) in SolidWorks?

easy

A. To list all parts and quantities needed for a product

B. To create 3D models of parts

C. To simulate product movement

D. To generate technical drawings automatically

Solution

1. Step 1: Understand BOM definition

   A BOM is a list that details all parts and quantities required to build a product.

2. Step 2: Compare options with BOM purpose

   Only To list all parts and quantities needed for a product correctly describes the BOM's role in listing parts and quantities.

3. Final Answer:

   To list all parts and quantities needed for a product -> Option A

4. Quick Check:

   BOM = List of parts and quantities [OK]

Hint: BOM always lists parts and quantities, not models or simulations [OK]

Common Mistakes:

• Confusing BOM with 3D modeling or simulation
• Thinking BOM creates drawings automatically
• Assuming BOM is only for assembly instructions

2.

Which menu path in SolidWorks is used to insert a Bill of Materials table?

Choose the correct sequence.

easy

A. Tools > BOM > Insert Table

B. Insert > Tables > Bill of Materials

C. File > New > Bill of Materials

D. View > Tables > BOM

Solution

1. Step 1: Recall SolidWorks menu for BOM

   The correct menu path to insert a BOM is under Insert > Tables > Bill of Materials.

2. Step 2: Verify other options

   Options A, B, and D do not match the correct menu sequence for BOM insertion.

3. Final Answer:

   Insert > Tables > Bill of Materials -> Option B

4. Quick Check:

   Insert > Tables > BOM = Correct menu path [OK]

Hint: BOM is under Insert > Tables, not File or Tools [OK]

Common Mistakes:

• Looking under File or Tools menus
• Confusing BOM insertion with drawing creation
• Selecting View menu instead of Insert

3.

Given an assembly with 3 parts: Part A (2 units), Part B (4 units), and Part C (1 unit), what will the quantity column show in the BOM?

Choose the correct quantities for each part.

medium

A. Part A: 2, Part B: 4, Part C: 1

B. Part A: 1, Part B: 1, Part C: 1

C. Part A: 3, Part B: 4, Part C: 2

D. Part A: 2, Part B: 2, Part C: 1

Solution

1. Step 1: Identify quantities from assembly

   The assembly specifies Part A has 2 units, Part B has 4 units, and Part C has 1 unit.

2. Step 2: Match quantities to BOM output

   The BOM quantity column reflects the exact counts of each part in the assembly.

3. Final Answer:

   Part A: 2, Part B: 4, Part C: 1 -> Option A

4. Quick Check:

   Quantities match assembly counts [OK]

Hint: BOM quantity matches assembly part counts exactly [OK]

Common Mistakes:

• Assuming all quantities default to 1
• Adding quantities incorrectly
• Mixing up part counts

4.

When generating a BOM, a user notices the quantity column shows all 1s, even though some parts have multiple units. What is the most likely cause?

medium

A. The BOM is set to 'Parts Only' instead of 'Top-level only'

B. The assembly is missing part references

C. The BOM is set to 'Top-level only' instead of 'Parts Only'

D. The drawing sheet is not active

Solution

1. Step 1: Understand BOM quantity settings

   'Top-level only' BOM counts each part once regardless of quantity, showing 1 for all.

2. Step 2: Identify correct setting for quantities

   Setting BOM to 'Parts Only' aggregates quantities correctly, showing actual counts.

3. Final Answer:

   The BOM is set to 'Top-level only' instead of 'Parts Only' -> Option C

4. Quick Check:

   BOM setting affects quantity display [OK]

Hint: Use 'Parts Only' BOM to show correct quantities [OK]

Common Mistakes:

• Confusing 'Top-level only' with 'Parts Only'
• Assuming missing references cause quantity errors
• Not checking BOM property settings

5.

You want to create a BOM that updates automatically when parts are added or removed from your assembly. Which approach should you take?

Choose the best practice for dynamic BOM updates.

hard

A. Manually create a BOM in Excel and update it after changes

B. Create BOM only after finalizing the assembly to avoid updates

C. Export BOM once and reuse the static file for all assemblies

D. Insert a linked BOM table in the assembly drawing that updates with changes

Solution

1. Step 1: Understand dynamic BOM update methods

   Linked BOM tables in SolidWorks drawings update automatically when assembly changes.

2. Step 2: Evaluate options for best practice

   Manual Excel or static exports do not update automatically; waiting until final assembly delays updates.

3. Final Answer:

   Insert a linked BOM table in the assembly drawing that updates with changes -> Option D

4. Quick Check:

   Linked BOM = automatic updates [OK]

Hint: Use linked BOM tables for automatic update in drawings [OK]

Common Mistakes:

• Relying on manual Excel BOMs
• Using static exports that don't update
• Delaying BOM creation until assembly is final