Practice Rapid Prototyping Techniques (3d Printing, Laser Cutting) (supporting C) (7.4)
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Rapid Prototyping Techniques (3D printing, laser cutting) (Supporting C)

Practice - Rapid Prototyping Techniques (3D printing, laser cutting) (Supporting C)

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the primary difference between Additive and Subtractive manufacturing?

  • Answer: Additive manufacturing (3D printing) creates an object by adding material layer by layer. Subtractive manufacturing (laser cutting) creates an object by removing or cutting away material from a solid block or sheet.
  • Hint: Think of "adding" versus "taking away."

💡 Hint: Think of "adding" versus "taking away."

Question 2 Easy

Define CAD and explain its role in rapid prototyping.

  • Answer: CAD (Computer-Aided Design) is software used to create precise digital models. It is essential because it provides the "instructions" or digital blueprints that 3D printers and laser cutters need to create a physical object.
  • Hint: The machines can't "think"; they follow the file you give them.

💡 Hint: The machines can't "think"; they follow the file you give them.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which 3D printing technology uses a laser to fuse powdered material together?

  • Type: MCQ
  • Options: FDM, SLA, SLS, CAD
  • Correct Answer: SLS (Selective Laser Sintering)
  • Explanation: SLS uses a high-power laser to sinter (fuse) small particles of plastic, metal, ceramic, or glass powders into a solid structure.
  • Hint: Look for the "powder" keyword in the 3D printing section.
FDM
SLA
SLS
CAD * **Correct Answer**: SLS (Selective Laser Sintering) * **Explanation**: SLS uses a high-power laser to sinter (fuse) small particles of plastic
metal
ceramic
or glass powders into a solid structure. * **Hint**: Look for the "powder" keyword in the 3D printing section.

💡 Hint: Look for the "powder" keyword in the 3D printing section.

Question 2

Laser cutting is generally better for creating complex internal hollow structures than 3D printing.

  • Type: Boolean
  • Options: True, False
  • Correct Answer: False
  • Explanation: 3D printing is ideal for complex internal geometries because it builds the object from the inside out. Laser cutting is restricted to what can be cut from the outside of a flat sheet.
  • Hint: Look at the "Advantages" in the Detailed Summary.
True
False * **Correct Answer**: False * **Explanation**: 3D printing is ideal for complex internal geometries because it builds the object from the inside out. Laser cutting is restricted to what can be cut from the outside of a flat sheet. * **Hint**: Look at the "Advantages" in the Detailed Summary.

💡 Hint: Look at the "Advantages" in the Detailed Summary.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

The Prototype Architect: You need to build a prototype of a Drone Frame. You need it to be lightweight, very strong, and you need 10 identical versions by tomorrow. Which rapid prototyping tool do you use and why?

  • Answer: Laser Cutting (using a material like carbon fiber or high-strength plywood). Laser cutting is much faster than 3D printing for flat, structural parts, and it is easier to produce 10 identical "flat-pack" frames in a single day than to 3D print 10 complex models.
  • Hint: Think about "Speed" and "Flat-pack designs."

💡 Hint: Think about "Speed" and "Flat-pack designs."

Challenge 2 Hard

The CAD Correction: A designer creates a 3D model of a sphere but forgets to "Slice" it before sending it to the 3D printer. What will happen and why?

  • Answer: The printer will likely do nothing or error out. 3D printers cannot read raw 3D files (like .STL or .OBJ) directly; they require the layer-by-layer coordinates (G-code) generated during the slicing process to know where to move the motors.
  • Hint: Slicing is the "Translator" between CAD and the Machine.

💡 Hint: Slicing is the "Translator" between CAD and the Machine.

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