Exploring 3D Printing Concepts

What is the primary purpose of a 3D printer?

• To create 2D images

• To produce three-dimensional objects

• To scan documents

• To print on paper

Which of the following is a common type of 3D printer?

• Inkjet printer

• Fused Deposition Modeling (FDM) printer

• Laser printer

• Dot matrix printer

In Tinkercad, which tool is used to move objects along the X, Y, or Z axis?

• Rotate tool

• Scale tool

• Align tool

• Move tool

Which filament is known for being biodegradable and derived from renewable resources?

• ABS

• PLA

• Nylon

• PETG

What is the first step in the 3D modeling process?

• Printing the model

• Designing the model

• Slicing the model

• Exporting the model

Which of the following is a key consideration when designing for 3D printing?

• Color of the filament

• Layer height

• Printer brand

• Room temperature

How does an SLA printer differ from an FDM printer in terms of material usage?

• SLA uses powder, FDM uses liquid resin

• SLA uses liquid resin, FDM uses filament

• SLA uses filament, FDM uses powder

• SLA uses paper, FDM uses ink

What feature in Tinkercad allows you to group multiple shapes into one object?

Answer Explanation: In Tinkercad, the 'Group' feature is used to combine multiple shapes into a single object. This is particularly useful when you want to manipulate several shapes as a single unit, such as moving, scaling, or rotating them together. The 'Align' feature is used to position shapes relative to each other, 'Mirror' is used to create a mirrored copy of a shape, and 'Rotate' is used to turn shapes around an axis.

• Align

• Group

• Mirror

• Rotate

Which filament type is best known for its flexibility and strength?

Answer Explanation: TPU (Thermoplastic Polyurethane) is renowned for its flexibility and strength, making it ideal for applications requiring durable and elastic materials. Unlike PLA and ABS, which are more rigid, TPU can withstand significant stretching and bending without breaking. PETG, while strong, does not offer the same level of flexibility as TPU.

• PLA

• ABS

• TPU

• PETG

What is the purpose of using supports in 3D printing?

• To enhance color

• To stabilize overhanging parts

• To increase speed

• To reduce noise