What is the file format used for 3D printing?
A1. STL file (Standard Tessellation Language).

Q2. What is the role of slicer software?
A2. It converts the 3D design into layers and instructions (G-Code) that the printer can follow.

Q3. Why do we set infill percentage in slicing?
A3. To control how solid or hollow the object will be (saves material and time).

Q4. Which setting controls how smooth the surface of a print looks?
A4. Layer height (smaller layer height = smoother surface).