Learn how to design and create 3D printable involute spur gears using Fusion 360. Explore the fundamentals of gear design, including pitch diameter and construction lines. Master the use of the gear designer tool to create precise spur gears. Discover techniques for moving and positioning gears within your design. Design a functional base for your gear system using sketching and extrusion tools. Apply these skills to create a simple two-gear gearbox, ready for 3D printing on a Creality Ender 3 printer. Gain practical experience with engineering calipers and understand their importance in future design projects.