Explore the heart of modern automotive engineering with this functional 4-cylinder inline engine model. Designed for makers and educators, this model features a realistic crankshaft and piston assembly, demonstrating the classic 1-3-4-2 firing order.

• Educational: Perfect for visualizing the conversion of linear motion into rotation.
• Smooth Motion: Optimized clearances for 3D printing to ensure the pistons move freely.
• Great for Tuning: Includes mounting points for optional gearboxes or hand cranks.
• No Support Needed: Designed for easy printing on standard FDM printers.