3D Printingknowledge~30 mins

Common G-code commands (G0, G1, G28, M104, M106) in 3D Printing - Mini Project: Build & Apply

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Common G-code commands (G0, G1, G28, M104, M106)

📖 Scenario: You are learning how 3D printers understand instructions. These instructions are called G-code commands. Each command tells the printer to do something specific, like move the print head or heat the nozzle.Imagine you want to prepare your 3D printer for printing a small object. You need to write some basic G-code commands to control the printer's movements and settings.

🎯 Goal: Build a simple list of common G-code commands with their exact codes and short descriptions. This will help you understand what each command does and how to use them in a 3D printing project.

📋 What You'll Learn

Create a dictionary called gcode_commands with exact keys: 'G0', 'G1', 'G28', 'M104', 'M106'

Each key must have a string value describing the command's purpose exactly as specified

Create a variable called important_command and set it to the string 'G28'

Use a for loop with variables code and description to iterate over gcode_commands.items()

Inside the loop, create a new dictionary selected_commands that includes only commands where code matches important_command

Add a final key-value pair to selected_commands with key 'Note' and value 'This command homes all axes.'

💡 Why This Matters

🌍 Real World

3D printers use G-code commands to control movements, temperatures, and other actions during printing. Understanding these commands helps in troubleshooting and customizing prints.

💼 Career

Knowledge of G-code is useful for 3D printing technicians, engineers, and hobbyists who want to optimize printer performance or create custom print jobs.

Progress0 / 4 steps

Create the G-code commands dictionary

Create a dictionary called gcode_commands with these exact entries: 'G0': 'Rapid move to position', 'G1': 'Controlled move to position', 'G28': 'Home all axes', 'M104': 'Set extruder temperature', 'M106': 'Turn on fan'.

3D Printing

# Create the gcode_commands dictionary with exact keys and descriptions
# Your code here

Hint

Use curly braces {} to create the dictionary and separate each key-value pair with a comma.

Set the important command variable

Create a variable called important_command and set it to the string 'G28'.

3D Printing

gcode_commands = {
    'G0': 'Rapid move to position',
    'G1': 'Controlled move to position',
    'G28': 'Home all axes',
    'M104': 'Set extruder temperature',
    'M106': 'Turn on fan'
}
# Create important_command variable and set it to 'G28'
# Your code here

Hint

Use the assignment operator = to set the variable.

Filter commands using a for loop

Use a for loop with variables code and description to iterate over gcode_commands.items(). Inside the loop, create a new dictionary called selected_commands that includes only the command where code matches important_command.

3D Printing

gcode_commands = {
    'G0': 'Rapid move to position',
    'G1': 'Controlled move to position',
    'G28': 'Home all axes',
    'M104': 'Set extruder temperature',
    'M106': 'Turn on fan'
}
important_command = 'G28'
# Use a for loop to create selected_commands with only the important_command
# Your code here

Hint

Start with an empty dictionary selected_commands = {}. Then add the matching command inside the loop.

Add a final note to the selected commands

Add a final key-value pair to the selected_commands dictionary with key 'Note' and value 'This command homes all axes.'.

3D Printing

gcode_commands = {
    'G0': 'Rapid move to position',
    'G1': 'Controlled move to position',
    'G28': 'Home all axes',
    'M104': 'Set extruder temperature',
    'M106': 'Turn on fan'
}
important_command = 'G28'
selected_commands = {}
for code, description in gcode_commands.items():
    if code == important_command:
        selected_commands[code] = description
# Add the final note key-value pair to selected_commands
# Your code here

Hint

Use the dictionary key assignment syntax to add the new pair.

Practice

(1/5)

1. What does the G-code command G28 do in 3D printing?

easy

A. Sets the extruder temperature

B. Homes all axes to their origin positions

C. Moves the print head quickly without extruding

D. Turns on the cooling fan

Common G-code commands (G0, G1, G28, M104, M106) in 3D Printing - Mini Project: Build & Apply

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Practice

Solution

Step 1: Understand the purpose of G28

Step 2: Compare with other commands

Final Answer:

Quick Check:

Solution

Step 1: Identify the command for setting extruder temperature

Step 2: Check the syntax

Final Answer:

Quick Check:

Solution

Step 1: Understand G0 and G1 commands

Step 2: Analyze the commands given

Final Answer:

Quick Check:

Solution

Step 1: Understand M106 command and S parameter

Step 2: Consider why fan might not turn on

Final Answer:

Quick Check:

Solution

Step 1: Identify commands for each action

Step 2: Check command order for correct sequence

Final Answer:

Quick Check: