Overhangs and bridging

1. 3D Printing: Enclosed Vs. Open Printers (Unpacked)
2. Retraction Vs. Coasting: 3D Printing Settings (Unpacked)
3. Extruder Vs Hotend: 3D Printer Parts (Unpacked)
4. Supports: Tree Vs. Linear in 3D Printing (Compared)
5. Software Vs. Hardware: 3D Printing Specializations (Explained)
6. 3D Printing: Dual Extrusion Vs. Multi-Material (Defined)
7. 3D Printing: Infill Vs Shell Strength (Defined)