ITPEC FE Subject A October 2025 Question 10
Which of the following is an appropriate description of a 3D printer’s function?
Explanation
It builds three-dimensional objects, for example by fused filament fabrication — a 3D printer turns digital 3D data into a physical object.
A 3D printer builds an object layer by layer from a 3D model. In fused filament fabrication (FFF, also called FDM) a heated nozzle melts a plastic filament and lays it down one thin layer at a time; other methods cure liquid resin with light or fuse powder with a laser.
Answer (c)
Why not others:
- •(a) — describes a 3D scanner, which measures a real object and outputs 3D data: the opposite direction
- •(b) — describes a thermal printer, which prints on heat-sensitive paper with a heated head
- •(d) — describes projection mapping, which projects computer graphics onto buildings and other uneven surfaces
Key rule: Mind the direction: a 3D scanner goes from object to data, a 3D printer from data to object.
Computer Component · AI-written, may contain errors
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