3D model association in PCB Design - Cell-by-Cell Formula Trace

Sample Data

This table lists PCB components and their associated 3D model files used for visualization in PCB design software.

Cell	Value
A1	Component
B1	3D Model File
A2	Resistor R1
B2	resistor_3d.step
A3	Capacitor C1
B3	capacitor_3d.step
A4	IC U1
B4	ic_3d.step

Formula Trace

LOOKUPVALUE('3D Models'[ModelFile], '3D Models'[Component], 'PCB Components'[Component])

Step 1: LOOKUPVALUE('3D Models'[ModelFile], '3D Models'[Component], "Resistor R1")

Step 2: LOOKUPVALUE('3D Models'[ModelFile], '3D Models'[Component], "Capacitor C1")

Step 3: LOOKUPVALUE('3D Models'[ModelFile], '3D Models'[Component], "IC U1")

Cell Reference Map

   A           B
1 Component   3D Model File
2 Resistor R1 resistor_3d.step
3 Capacitor C1 capacitor_3d.step
4 IC U1       ic_3d.step

Formula references the Component column to find matching 3D Model File.

The formula uses the Component names in column A to find the matching 3D Model File in column B.

Result

   A           B
1 Component   3D Model File
2 Resistor R1 resistor_3d.step
3 Capacitor C1 capacitor_3d.step
4 IC U1       ic_3d.step

The result shows each component linked to its 3D model file for visualization.

The final output associates each PCB component with its correct 3D model file, enabling 3D visualization in the PCB design tool.

Sheet Trace Quiz - 3 Questions

What does the formula LOOKUPVALUE return for 'Resistor R1'?

A capacitor_3d.step

B resistor_3d.step

C ic_3d.step

D No value

Key Result

LOOKUPVALUE returns a value from one column by matching a key in another column.

Practice

1.

What is the main purpose of 3D model association in PCB design?

easy

A. To write code for PCB manufacturing

B. To test the electrical signals on the board

C. To create electrical schematics

D. To link PCB parts with their 3D shapes for visualization

Solution

1. Step 1: Understand the role of 3D model association

   3D model association connects parts on the PCB to their 3D shapes to visualize the board in 3D.

2. Step 2: Differentiate from other PCB tasks

   Writing code, creating schematics, and testing signals are different tasks unrelated to 3D model linking.

3. Final Answer:

   To link PCB parts with their 3D shapes for visualization -> Option D

4. Quick Check:

   3D model association = visualization link [OK]

Hint: Think: 3D model = visual shape link [OK]

Common Mistakes:

• Confusing 3D model association with coding
• Mixing it up with schematic design
• Assuming it tests electrical signals

2.

Which of the following is the correct way to associate a 3D model file to a PCB part?

PartName = 'R1'
ModelFile = 'C:/3DModels/resistor.step'

easy

A. Assign ModelFile path directly to the part R1

B. Write ModelFile = R1 to link the model

C. Use PartName = ModelFile to associate

D. Place the 3D model file inside the PCB schematic

Solution

1. Step 1: Understand correct syntax for linking

   The 3D model file path must be assigned to the part name, e.g., ModelFile path linked to 'R1'.

2. Step 2: Identify incorrect options

   Assigning ModelFile = R1 or PartName = ModelFile is wrong syntax. Placing files inside schematic is unrelated.

3. Final Answer:

   Assign ModelFile path directly to the part R1 -> Option A

4. Quick Check:

   Correct file path assignment = Assign ModelFile path directly to the part R1 [OK]

Hint: Link file path to part name, not vice versa [OK]

Common Mistakes:

• Swapping variable names in assignment
• Trying to embed 3D files inside schematics
• Using incorrect syntax for association

3.

Given the following association code snippet, what will be the result?

PartName = 'C2'
ModelFile = 'models/capacitor.step'
Associate3DModel(PartName, ModelFile)
Print(Get3DModel('C2'))

medium

A. 'models/capacitor.step'

B. 'C2'

C. Error: Function not found

D. Empty string

Solution

1. Step 1: Understand the association function

   The function Associate3DModel links the part 'C2' to the file 'models/capacitor.step'.

2. Step 2: Check the retrieval function output

   Get3DModel('C2') returns the associated model file path, which is 'models/capacitor.step'.

3. Final Answer:

   'models/capacitor.step' -> Option A

4. Quick Check:

   Get3DModel returns linked file path [OK]

Hint: Get3DModel returns the linked file path [OK]

Common Mistakes:

• Confusing part name with file path output
• Assuming function does not exist
• Expecting empty output without association

4.

Identify the error in this 3D model association snippet:

PartName = 'U1'
ModelFile = 'models/ic.step'
Associate3DModel(ModelFile, PartName)

medium

A. Part name should be numeric

B. Model file path is incorrect

C. Arguments are reversed in the function call

D. Missing file extension in ModelFile

Solution

1. Step 1: Check function parameter order

   Associate3DModel expects (PartName, ModelFile), but here parameters are reversed.

2. Step 2: Verify other elements

   ModelFile path and extension look correct; part name can be alphanumeric.

3. Final Answer:

   Arguments are reversed in the function call -> Option C

4. Quick Check:

   Correct parameter order matters [OK]

Hint: Check function argument order carefully [OK]

Common Mistakes:

• Swapping part name and file path in calls
• Assuming part names must be numeric
• Ignoring file extension importance

5.

You have a PCB with parts R1, C1, and U1. You want to associate 3D models stored in different folders:

• Resistors: 3DModels/Resistors/
• Capacitors: 3DModels/Capacitors/
• ICs: 3DModels/ICs/

Which approach correctly assigns models to parts for visualization?

hard

A. Associate3DModel('R1', '3DModels/Capacitors/capacitor.step'); Associate3DModel('C1', '3DModels/Resistors/resistor.step'); Associate3DModel('U1', '3DModels/ICs/ic.step')

B. Associate3DModel('R1', '3DModels/Resistors/resistor.step'); Associate3DModel('C1', '3DModels/Capacitors/capacitor.step'); Associate3DModel('U1', '3DModels/ICs/ic.step')

C. Associate3DModel('R1', '3DModels/ICs/ic.step'); Associate3DModel('C1', '3DModels/Resistors/resistor.step'); Associate3DModel('U1', '3DModels/Capacitors/capacitor.step')

D. Associate3DModel('R1', '3DModels/ICs/ic.step'); Associate3DModel('C1', '3DModels/ICs/ic.step'); Associate3DModel('U1', '3DModels/ICs/ic.step')

Solution

1. Step 1: Match parts to correct model folders

   Resistors (R1) get models from Resistors folder, capacitors (C1) from Capacitors, ICs (U1) from ICs folder.

2. Step 2: Verify each association

   Associate3DModel('R1', '3DModels/Resistors/resistor.step'); Associate3DModel('C1', '3DModels/Capacitors/capacitor.step'); Associate3DModel('U1', '3DModels/ICs/ic.step') correctly assigns each part to its matching folder and model file.

3. Final Answer:

   Associate3DModel('R1', '3DModels/Resistors/resistor.step'); Associate3DModel('C1', '3DModels/Capacitors/capacitor.step'); Associate3DModel('U1', '3DModels/ICs/ic.step') -> Option B

4. Quick Check:

   Correct folder-part matching = Associate3DModel('R1', '3DModels/Resistors/resistor.step'); Associate3DModel('C1', '3DModels/Capacitors/capacitor.step'); Associate3DModel('U1', '3DModels/ICs/ic.step') [OK]

Hint: Match part type to correct model folder [OK]

Common Mistakes:

• Mixing resistor and capacitor model folders
• Assigning all parts to IC models
• Using wrong file paths for parts