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?

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

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

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

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

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

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

Ultraviolet light or a laser. (D) Signup and view all the answers

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

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

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

Additive manufacturing (B) Signup and view all the answers

How does filament printing typically create a 3D object?

By melting and layering filament (C) Signup and view all the answers

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

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

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

Printing specialized components sent from Earth (B) Signup and view all the answers

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

Long lead times for prototypes (D) 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?

Fused deposition modeling (D) Signup and view all the answers

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

Hard plastic filaments (B) Signup and view all the answers

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

It melts and extrudes the filament in layers (C) Signup and view all the answers

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.

Print Bed Considerations

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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Description

This quiz explores various 3D printing technologies, including Filament Printing (FDM) and Stereolithography (SLA). Understand the principles of additive manufacturing and how these methods differ from traditional manufacturing. Discover their applications in rapid prototyping and even in space exploration.