N20 Line Follower Robot Chassis Version 2

N20 Line Follower Robot Chassis – External Gearbox with Protective Mount

The N20 Line Follower Chassis – Version 2 is designed for builders who need more mechanical flexibility and motor accessibility. In this version, the N20 motor gearbox remains outside the chassis, but is securely covered using a dedicated mounting bracket for safety and strength.

This design offers better torque accommodation, easier maintenance, and wider motor spacing, making it suitable for heavier robots or experimental setups.

Like Version 1, it is 3D printed with precision, reinforced using metal fasteners, and optimized for line sensor integration.

Key Specifications:

• Compatible Motor: N20 DC Gear Motor

• Motor Placement: External gearbox with protective mount

• Maximum Length: 18 cm

• Maximum Width (Motor Side): 15.5 cm

• Maximum Width (Sensor Side): 8.8 cm

• Sensor Wire Hole: 3.5 cm

• Material: High-strength 3D printed polymer

• Assembly: Includes mounting brackets with screws

Key Features:

• External gearbox allows easy motor replacement

• Wider motor base for improved torque handling

• Protective bracket ensures motor safety

• Strong, rigid structure for heavier builds

• Clean sensor wiring path for line follower arrays

Best For:

• Heavier or experimental line follower robots

• Projects requiring easy motor access

• High-torque N20 motor applications

Difference from Version 1:

• Gearbox is outside the chassis

• Wider motor-side width (15.5 cm vs 13 cm)

• Easier maintenance and motor customization