3D Printing Introduction - FDM vs SLA

Subtractive manufacturing... (Choose 2 answers.)

• involves the adding of material to make a final product.

• involves the removal of material to make a final product.

• is exemplified by the work of a sculptor.

• is exemplified by the work of a bricklayer.

Examples of Subtractive manufacturing machines are... (Choose 2 answers.)

• CNC router.

• CNC cutter.

• 3D printer.

• CNC 3D printer.

Additive manufacturing... (Choose 2 answers.)

• involves the adding of material to make a final product.

• involves the removal of material to make a final product.

• is exemplified by the work of a sculptor.

• is exemplified by the work of a bricklayer.

An example of an Additive manufacturing machine is a...

• CNC router.

• CNC cutter.

• 3D printer.

• CNC 3D printer.

What are the two types of additive manufacturing machines? (Choose 2 answers.)

• MDF

• FDM

• DFM

• LSA

• SLA

What does FDM mean?

• Fixed Deposited Modelling (FDM)

• Fused Deposited Modelling (FDM)

• Fixed Depositing Modelling (FDM)

• Fused Depositing Modelling (FDM)

The speed of creating a product on an FDM machine is...

• slow.

• fast.

• very fast.

• very slow.

FDM machines build their 3D objects...

• left-to-right.

• top-to-bottom.

• right-to-left.

• bottom-to-top.

In order to work, the FDM machine needs...

• a cold filament which passes through a hot extruder that then deposits on a hot bed.

• a cold filament which passes through a hot extruder that then deposits on a cold bed.

• a hot filament which passes through a hot extruder that then deposits on a hot bed.

• a cold filament which passes through a cold extruder that then deposits on a cold bed.

Which of the following statements is TRUE for an FDM machine? (Choose 2 answers.)

• It is very expensive.

• A 2cm model is made up of 300 layers of deposited metal.

• It is relatively cheap.

• A 4cm model is made up of 600 layers of deposited plastic.