3D Printing Basics

What is the angle at which no supports are required according to the left section of the diagram?

• Less than 45 degrees

• Equal to 45 degrees

• More than 45 degrees

• Exactly 30 degrees

Answer explanation

The angle at which no supports are required is less than 45 degrees. This is because angles below this threshold can maintain stability without additional support, making 'less than 45 degrees' the correct choice.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the initial state of the plastic before being heated in the extruder?

• A thick liquid.

• A solid filament.

• A gas.

• A powder.

Answer explanation

Before heating in the extruder, plastic is typically in the form of a solid filament. This solid state allows for easy handling and feeding into the extruder, where it will be melted and shaped.

Tags

NGSS.MS-PS1-4

At what angle do supports become necessary according to the diagram?

• Less than 45 degrees

• Equal to 45 degrees

• More than 45 degrees

• Exactly 30 degrees

Answer explanation

Supports become necessary when the angle exceeds 45 degrees, as structures at steeper angles require additional stability to prevent collapse. Therefore, the correct answer is 'More than 45 degrees'.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Which angle in the diagram is shown as not requiring supports in the middle section?

• Less than 45 degrees

• Equal to 45 degrees

• More than 45 degrees

• Exactly 30 degrees

Answer explanation

The angle equal to 45 degrees is the critical point where supports are not needed in the middle section. Angles less than or more than 45 degrees typically require additional support to maintain stability.

What is the process of 3D printing called?

• Layering

• Stacking

• Printing

Tags

NGSS.MS-ETS1-4

The part of a 3D printer that heats the fillament

• Extruder

• Bed

• Fillament

• Nozel

Tags

NGSS.MS-PS3-3

Identify the type of manufacturing done by a 3D printer.

• Repetitive

• Additive

• Discrete

3D printers will print in layers...

• from bottom to top

• from left to right

• right to left

• top to bottom

Tags

NGSS.MS-ETS1-4

The action or process of making a physical object from a three-dimensional digital model, typically by laying down many thin layers of a material in succession.

• 3D print

• Laser Engraver

• 2 Dimensional

• Prototype

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-4

A slender threadlike material that is heated in a 3D printer in order to create an object.

• filament

• 3D print

• revolve

• extrude

Tags

NGSS.MS-PS1-3