Small-Engine Tilling Machine 3D Model with chain Drive System

This detailed 3D model depicts a walk-behind tilling machine with an integrated small engine power unit. This assembly features a complete powertrain system with several key components:

**Engine Assembly Components:**
– Single-cylinder combustion engine with visible exhaust and intake manifold systems
– Dedicated fuel tank mounted on support brackets
– Flywheel cover protecting the engine’s rotation mechanism
– Various fasteners including 4mm and 6mm bolts for component securing

**Power Transmission System:**
– ASA 40 chain drive with internal links for power transfer
– Two sprocket configurations (Z15 and Z31 with 20mm shaft diameter) providing appropriate gear reduction
– Lever-operated brake system with dedicated lever base

The machine features a tubular steel frame construction with handlebar controls positioned for operator ergonomics. The tilling mechanism appears to utilize, overall, the rotational power from the engine through the chain drive to power soil-engagement tines. This model is designed in metric units with all components scaled appropriately for a walk-behind agricultural implement. The chain drive ratio (approximately 2:1 based on the Z31:Z15 sprocket configuration) provides suitable torque multiplication for effective soil cultivation.