Functional prototyping in 3D Printing - Mini Project: Build & Apply

Functional Prototyping with 3D Printing

📖 Scenario: You are designing a small mechanical part for a new gadget. Before making the final product, you want to create a simple prototype using 3D printing to test its fit and function.

🎯 Goal: Build a step-by-step plan to create a functional prototype using 3D printing, including design setup, configuration of print settings, applying the printing process, and finalizing the prototype for testing.

📋 What You'll Learn

Create a basic 3D model of the part

Set up print configuration variables

Apply the 3D printing process steps

Complete the prototype with finishing touches

💡 Why This Matters

🌍 Real World

Functional prototyping with 3D printing helps designers quickly test and improve parts before mass production.

💼 Career

Understanding prototyping is essential for product designers, engineers, and manufacturing specialists to reduce costs and speed up development.

1

Create the Basic 3D Model

Create a simple 3D model of a rectangular block called prototype_part with dimensions length 50mm, width 30mm, and height 10mm.

3D Printing

# Define the 3D model dimensions and shape
# Your code here

Need a hint?

Think of the part as a simple box. Use keys like 'length_mm', 'width_mm', and 'height_mm' to describe its size.

2

Set Up Print Configuration

Create a variable called print_settings as a dictionary with layer_height_mm set to 0.2, infill_percentage set to 20, and material set to 'PLA'.

3D Printing

prototype_part = {
    'shape': 'rectangular_block',
    'length_mm': 50,
    'width_mm': 30,
    'height_mm': 10
}
# Define the print settings
# Your code here

Need a hint?

Use a dictionary to hold the print settings. Include layer height, infill, and material type.

3

Apply the 3D Printing Process

Create a list called printing_steps with these exact steps as strings in order: 'Prepare 3D model', 'Slice model with print settings', 'Start printing', 'Monitor print progress'.

3D Printing

prototype_part = {
    'shape': 'rectangular_block',
    'length_mm': 50,
    'width_mm': 30,
    'height_mm': 10
}

print_settings = {
    'layer_height_mm': 0.2,
    'infill_percentage': 20,
    'material': 'PLA'
}

# List the printing process steps
# Your code here

Need a hint?

Use a list to keep the steps in order. Each step is a string describing the action.

4

Complete the Prototype for Testing

Add a key post_processing with value 'Remove supports and clean surface' to the prototype_part dictionary.

3D Printing

prototype_part = {
    'shape': 'rectangular_block',
    'length_mm': 50,
    'width_mm': 30,
    'height_mm': 10
}

print_settings = {
    'layer_height_mm': 0.2,
    'infill_percentage': 20,
    'material': 'PLA'
}

printing_steps = [
    'Prepare 3D model',
    'Slice model with print settings',
    'Start printing',
    'Monitor print progress'
]

# Add post processing step to prototype_part
# Your code here

Need a hint?

Add the finishing step inside the prototype_part dictionary to show how the prototype is prepared after printing.