Minimum wall thickness guidelines in 3D Printing - Mini Project: Build & Apply

Minimum Wall Thickness Guidelines for 3D Printing

📖 Scenario: You are designing a small 3D printed container to hold office supplies. To ensure your design prints successfully and is strong enough, you need to understand the minimum wall thickness guidelines for your 3D printer.

🎯 Goal: Learn how to set and apply minimum wall thickness guidelines in your 3D model to ensure it prints well and is durable.

📋 What You'll Learn

Create a variable called material with the value 'PLA'

Create a variable called min_thickness_mm and set it to the minimum wall thickness for PLA (2 mm)

Create a list called design_walls_mm with wall thickness values: 1.5, 2, 2.5, 3

Create a list called valid_walls_mm that includes only the wall thicknesses from design_walls_mm that meet or exceed min_thickness_mm

Add a final statement that sets a variable message to 'All walls meet minimum thickness' if all walls are valid, otherwise 'Some walls are too thin'

💡 Why This Matters

🌍 Real World

3D printing requires designs to have walls thick enough to print properly and be strong. Knowing minimum wall thickness helps avoid print failures and weak parts.

💼 Career

Designers and engineers use these guidelines to prepare models for 3D printing, ensuring quality and durability in prototypes and products.

1

Set the material and minimum wall thickness

Create a variable called material and set it to the string 'PLA'. Then create a variable called min_thickness_mm and set it to 2 to represent the minimum wall thickness in millimeters for PLA.

3D Printing

# Create material and minimum thickness variables
# Your code here

Need a hint?

Use simple assignment to create material and min_thickness_mm.

2

Create a list of wall thicknesses in your design

Create a list called design_walls_mm with the exact values 1.5, 2, 2.5, and 3 representing wall thicknesses in millimeters.

3D Printing

material = 'PLA'
min_thickness_mm = 2
# Create the list design_walls_mm with values 1.5, 2, 2.5, 3
# Your code here

Need a hint?

Use square brackets to create the list with the exact numbers.

3

Filter walls that meet minimum thickness

Create a list called valid_walls_mm that includes only the wall thickness values from design_walls_mm that are greater than or equal to min_thickness_mm. Use a list comprehension with variables wall to do this.

3D Printing

material = 'PLA'
min_thickness_mm = 2
design_walls_mm = [1.5, 2, 2.5, 3]
# Create valid_walls_mm with walls >= min_thickness_mm
# Your code here

Need a hint?

Use a list comprehension to filter walls that are at least the minimum thickness.

4

Set a message based on wall thickness validation

Create a variable called message. Set it to the string 'All walls meet minimum thickness' if all walls in design_walls_mm are in valid_walls_mm. Otherwise, set message to 'Some walls are too thin'. Use an if statement to check this.

3D Printing

material = 'PLA'
min_thickness_mm = 2
design_walls_mm = [1.5, 2, 2.5, 3]
valid_walls_mm = [wall for wall in design_walls_mm if wall >= min_thickness_mm]
# Set message based on whether all walls are valid
# Your code here

Need a hint?

Compare the lengths of the two lists to decide the message.