3D Printing Final

What is the name of the file type that is loaded into a 3D printer that determines height, position, and extrusion locations of filament?

• PDF

• .xls

• .stl

• g-code

Which of the following overhang angles, from the vertical axis, would generally be acceptable for most 3D printing without the need for support material?

• 52

• 85

• 35

• 74

Bridging in 3D printing refers to?

• A horizontal overhang that will print across two points

• A 45 degree overhang between two points

• A horizontal wall

• A 45 degree overhang between two parts

Which layer height setting would result in the smoothest 3D print surface?

• 0.1 mm

• 0.2 mm

• 0.15 mm

• 0.4 mm

The primary factor that determines the temperature at which a 3D printer is set to operate is:

• The make and model of the printer

• The amount of overhangs in the model

• The size of the print bed

• The filament material type

If the model of a 3D print design has a very small surface area touching the print bed, the model may:

• Adhere well to the print bed

• Topple over during printing

• Cause the slicing software to not generate a path for the print head

• Have poor surface quality

When orienting models for 3D printing, you should:

• Always enable support material

• Ensure the largest surface area is on the print bed, regardless of any other design considerations

• Try to minimize the amount of overhang features over 45 degrees

• Try to minimize the amount of overhang features over 30 degrees

When bridging large distances without support material, you will notice:

• Drooping of the print

• Under-extrusion

• Good surface quality

• Material binding around the nozzle

To ensure good bed adhesion of a 3D print, you should:

• Design a model with no overhangs

• Minimize the surface area touching the print bed

• Design a model with no bridges

• Ensure there is adequate surface area touching the print bed

Which layer height setting would lead to the shortest print time:

• 0.15 mm

• 0.25 mm

• 0.2 mm

• 0.1 mm