Tank Robot Chassis Kit with Motors & Battery Holder - Shock Absorbing Suspension DIY Crawler

Specifications:

• Dimensions: 185mm (L) x 97mm (W) x 50mm (H)
  
• Suspension System: 8-way active spring-loaded independent damping
  
• Locomotion: Dual high-torque DC Motors (Integrated Gearbox)
  
• Track Type: High-grip interlocking engineering plastic tracks
  
• Chassis Material:  Plastic 
  
• Power Compatibility: Integrated 2x AA or 1x 9V Battery Holder 
  
• Mounting Holes: Pre-drilled for Arduino Uno, Raspberry Pi, and Ultrasonic Sensors
  
• Climbing Ability: Up to 30° incline (Terrain dependent)

Key Applications & Projects

• Autonomous Exploration: Build a rover that navigates gardens or rocky paths using GPS and Lidar.
  
• Surveillance Bot: Mount an ESP32-CAM or Raspberry Pi Camera for a low-profile, "stealth" indoor monitoring tank.
  
• Rescue Robotics: Prototype a mini search-and-rescue vehicle capable of traversing debris.
  
• AI Vision Tank: Use a Jetson Nano to perform object tracking while the suspension handles the bumps.

Project Evolution 

• The Starting Point: If you have already mastered basic line-following on a 2WD acrylic car, this is your next logical step.
  
• The Feature Upgrade: Moving to this chassis unlocks all-terrain mobility. You are no longer restricted to tiles; you can now experiment with grass, gravel, and small obstacles.
  Effort Level: Intermediate.
  
• Requirements: You will need a dual-channel motor driver and a microcontroller to begin.

Virtual Technician & Wiring

• Safety Warning: Always ensure your motor driver can handle the 9V input. Do not connect motors directly to microcontroller pins.

Basic Pin Mapping:

• Motor L (+/-): Connect to Driver Out 1/2
• Motor R (+/-): Connect to Driver Out 3/4
• Battery Holder: Connect to Driver VCC and GND (Ensure common ground with MCU).

Package Includes:

1 X Tank Robot Chassis Kit with Motors & Battery Holder - Shock Absorbing Suspension DIY Crawler

Frequently Asked Questions (FAQ)

1. Does the kit come pre-assembled?
   No, it is a DIY kit designed to teach mechanical assembly and robotics fundamentals.
2. What is the recommended operating voltage for the motors?
   The motors perform optimally between 6V and 9V DC.
3. Can I use a Raspberry Pi 4 to control this?
   Yes, there is ample space on the top plate. Use a buck converter to provide 5V to the Pi.
4. Are the tracks made of rubber or plastic?
   They are made of high-strength engineering plastic segments for durability and low friction.
5. How does it turn?
   It uses "Differential Steering" (skid-steer). To turn left, stop the left motor and run the right motor forward.
6. Can it climb regular stairs? No, it is designed for obstacles up to 2-3cm and inclines up to 30 degrees.
7. What motor driver is best for this?
   The L298N or the TB6612FNG are excellent choices.
8. Does it include an Arduino board?
   No, this is the mechanical chassis and motor kit only.
9. How much weight can the chassis carry?
   It is designed for a payload of 500g to 1kg for optimal suspension performance.
10. Is the suspension adjustable?
    The springs are fixed-rate, but you can adjust track tension by removing or adding track links.
11. Are the motors noisy?
    They are standard geared DC motors; the tracks produce a characteristic "mechanical" sound during movement.
12. What is the shaft diameter of the motors?
    The gearbox output is a standard 4mm D-type shaft.
13. Can I add encoders to these motors?
    The stock motors do not include encoders, but there is space to mount external optical encoders on the wheel axles.
14. Is the chassis waterproof?
    No. The motors and battery compartment are exposed. Avoid wet conditions.
15. What size battery fits in the holder?
    The included holder fits 2x AA batteries or a 9V snap;
16. Are the tracks replaceable if they break?
    The tracks are highly durable, but individual links can be swapped if needed.
17. What is the ground clearance?
    Approximately 12mm-15mm depending on the payload weight.
18. Can I mount a robotic arm on it?
    Yes, a lightweight acrylic or 3D-printed arm can be mounted on the top plate.
19. What tools are required for assembly?
    A standard Phillips head screwdriver and a small wrench (included in most batches).
20. Why are the tracks slipping?
    Ensure the tracks are properly tensioned. If they are too loose, they may jump off the drive sprocket during high-speed turns.