3.7 – Printers: 3D Printing

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Questions and Answers

What is a primary difference between filament printers and SLA printers?

  • Filament printers have a smaller print bed compared to SLA printers.
  • Filament printers use liquid resin, whereas SLA printers use solid material.
  • SLA printers typically produce smoother and more finely detailed objects. (correct)
  • SLA printers require a larger volume of material than filament printers.

What protective measure is necessary when working with resin printers?

  • Employing masks to avoid inhaling potential fumes.
  • Wearing gloves to prevent burns from the heating elements.
  • Utilizing protective gear to prevent injury from the liquid resin. (correct)
  • Using safety goggles to protect against UV light exposure.

How does the build platform function in SLA printing?

  • It moves down into the resin, and then up to remove excess material. (correct)
  • It only operates at a constant height throughout the printing process.
  • It ascends automatically after each layer is printed.
  • It remains stationary while the resin is poured over an object.

What is the significance of the print bed in both filament and resin printing?

<p>It is essential for ensuring that the printing material adheres properly. (D)</p> Signup and view all the answers

What happens to the build platform after each layer is created in SLA printing?

<p>It moves up to dispose of excess resin before continuing. (B)</p> Signup and view all the answers

Why must the print bed remain level and clean during the printing process?

<p>To ensure the printed object remains still and adheres properly. (A)</p> Signup and view all the answers

What kind of light is commonly used in SLA printers to harden resin?

<p>Ultraviolet light or a laser. (D)</p> Signup and view all the answers

What should be done with any leftover or excess liquid resin after a printing job?

<p>It must be taken to a hazardous materials facility. (C)</p> Signup and view all the answers

What is the process known as where layers are added to create a 3D object?

<p>Additive manufacturing (B)</p> Signup and view all the answers

How does filament printing typically create a 3D object?

<p>By melting and layering filament (C)</p> Signup and view all the answers

What is a significant advantage of using filament printing in 3D printing?

<p>It creates less mess compared to other methods (A)</p> Signup and view all the answers

What capability does a 3D printer on the International Space Station provide?

<p>Printing specialized components sent from Earth (B)</p> Signup and view all the answers

What is often a challenge with traditional manufacturing compared to 3D printing?

<p>Long lead times for prototypes (D)</p> Signup and view all the answers

What is the term for the printing method that uses melted material to form layers, often referred to as FDM?

<p>Fused deposition modeling (D)</p> Signup and view all the answers

Which of the following materials is primarily used in filament printing?

<p>Hard plastic filaments (B)</p> Signup and view all the answers

What is a characteristic feature of the print head in a filament printer?

<p>It melts and extrudes the filament in layers (C)</p> Signup and view all the answers

Flashcards

3D Printing

A technology that creates three-dimensional objects by layering material, often used in prototyping and manufacturing.

Additive Manufacturing

The process of building up a 3D object by adding material layer by layer.

Filament Printing

A type of 3D printing where a heated nozzle extrudes melted plastic filament onto a build platform, layer by layer, to create objects.

Fused Deposition Modeling (FDM)

A common name for Filament Printing, using melted plastic filament to create objects.

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Print Bed

The platform where the 3D object is built during the printing process.

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Filament

The material used in filament printing, often a thermoplastic filament.

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Print Head

The part of a 3D printer that melts the filament and extrudes it onto the build platform.

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3D Printer on the International Space Station

A 3D printer on the International Space Station that allows astronauts to create specialized parts in space.

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Resin Printing

A type of 3D printing that uses UV light to harden liquid resin into solid layers, creating precise and detailed objects.

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Build Platform

A platform that moves up and down within the resin bath during SLA printing, supporting the growing 3D object.

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Leveling the Print Bed

The process of ensuring the print bed is perfectly level and clean before printing. It's essential for a successful print.

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Liquid Resin

A special liquid used in resin 3D printing that hardens when exposed to UV light.

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Hazardous Materials Facility

A specialized facility for disposing of hazardous materials, such as leftover resin from 3D printing.

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Protective Gear for Resin Printing

Protective gear, like gloves and masks, used when handling resin to avoid skin irritation and exposure to harmful chemicals.

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Study Notes

3D Printing Technologies

  • 3D printing, also known as additive manufacturing, creates 3D objects layer by layer. It contrasts with traditional methods that carve or remove material.
  • 3D printers are used for rapid prototyping, enabling quick creation of models for testing and visualization.
  • 3D printers are also used in space, a notable example being the International Space Station, where customized parts are printed.

Filament Printing (FDM)

  • Filament printing, also known as Fused Deposition Modeling (FDM), melts and deposits filament material layer by layer.
  • The print head moves and lays down each layer of the melted filament.
  • Advantages include ease of filament handling, disposability, and large print beds.
  • Filament is typically a manageable, transportable, non-messy material.

Stereolithography (SLA) or Resin Printing

  • Stereolithography, or SLA printing, uses liquid resin.
  • A UV light or laser hardens the resin layer by layer to create the 3D object.
  • Usually involves a build platform moving up and down, dipping into resin.
  • SLA printing yields smoother, more detailed pieces compared to filament printing.
  • The print bed is the surface the 3D object is built on.
  • Print beds for filament-based printers are typically large flat surfaces, often adhesive.
  • Print beds for SLA printers are the bottom surface where the liquid resin cures.
  • Proper bed stability and cleanliness are crucial for successful 3D printing.
  • Resin handling demands protective equipment due to its potential toxicity or hazard. Proper disposal is necessary for resin waste materials.

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