Extrusion multiplier

1. Brim Vs. Skirt: 3D Printing First Layer (Unpacked)
2. Extruder Vs Hotend: 3D Printer Parts (Unpacked)
3. Raft Vs Brim: 3D Printing Bed Adhesion (Decoded)
4. 3D Printing: Calibration Vs. Leveling (Unpacked)
5. 3D Printing: Shell Vs. Infill Density (Defined)
6. Direct Drive Vs. Geared Extruder: 3D Printing (Decoded)