🖨️ Part 1: Understanding 3D Printing

1. What is 3D printing also known as?

Subtractive manufacturing

Additive manufacturing

Traditional manufacturing

Digital manufacturing

2. How does a 3D printer create objects?

3. Which of these are key components of a 3D printer? (Check all that apply)

Print bed

Extruder/nozzle

Hammer

Filament/material

Saw blade

⚙️ Part 2: The 3D Printing Process

4. Put the 3D printing process stages in the correct order by matching them:

1. First stage

2. Second stage

3. Third stage

A. Printing the object

B. Design in CAD software

C. Slicing the model

5. Fill in the blanks about the 3D printing process:

First, you create a digital model using _______ software. Then, the model is _______ into layers to create printer instructions. Finally, the 3D printer builds the object _______ by _______.

6. What does CAD stand for?

🔬 Part 3: Materials and Applications

7. Which materials can be used in 3D printing? (Check all that apply)

Plastics

Resins

Metals

Wood pulp

Paper

8. Name three real-world applications where 3D printing is used:

9. What is one major advantage of 3D printing compared to traditional manufacturing?

It's always faster

It can create complex shapes that would be difficult to make traditionally

It's always cheaper

It uses less electricity

🎨 Part 4: Design Challenge

10. Design a simple keychain that could be 3D printed. Draw your design below and consider the constraints: maximum size 5cm x 3cm, simple shapes only.

11. Explain one feature of your keychain design and why it is suitable for 3D printing:

12. What material would you choose for your keychain and why?