Mecanum Wheel Aluminum Double chassis Car DIY UnAssembled Robot KIT

Specifications

• Chassis Material: Aluminum Alloy (Anodized)
• Deck Configuration: Double Layer (Stand-off separation)
• Drive Type: 4WD (Four Independent DC Gear Motors)
• Wheel Type: Mecanum (Roller style for vector movement)
• Motor Voltage: 3V - 9V DC (Recommended 6V-7.4V)
• Gear Ratio: 1:48 (Standard High-Torque)
• Assembly Status: DIY Unassembled (Screwdriver required)
• Mounting Holes: Pre-drilled slots for Arduino, Raspberry Pi, and Servo mounting
• Dimensions: Approx. 260mm x 150mm x 65mm (L x W x H)
• Payload Capacity: Up to 1.5kg (dependent on battery/motor voltage)

Features:

• Omnidirectional Mobility: 4x Mecanum wheels allow for holonomic movement (forward, backward, crab-walk sideways, diagonal, and spin).
• Double-Layer Architecture: Maximizes mounting surface area, allowing for clean cable management and separation of power vs. logic components.
• Aluminum Alloy Body: Anodized finish resists corrosion and provides a rigid, wobble-free base for sensors.
• High-Payload Capacity: Rigid frame supports heavier batteries and multiple sensors without flexing.
• Probots Lab Verified: Our engineering team has tested this chassis configuration to ensure the included motors provide sufficient torque for smooth strafing on hard surfaces.

Applications

• Warehouse Logistics Prototypes: Simulate AGV (Automated Guided Vehicle) paths.
• ROS Education: Ideal "TurtleBot" alternative for university labs.
• Competition Robotics: High agility for "Robo-Soccer" or maze solving.
• Surveillance: Smooth turning for stable camera feeds.

Project Evolution: Unlock New Capabilities

• Prerequisite: If you have mastered a basic "Obstacle Avoidance Bot" using a simple 2WD acrylic chassis, you are ready for this upgrade.
• The Upgrade: Switching to this Mecanum Chassis unlocks Holonomic Kinematics. You aren't just driving motors anymore; you are programming vector math. This chassis is the physical requirement for learning:

• Inverse Kinematics: Calculating individual wheel speeds to achieve a specific drift angle.
• ROS (Robot Operating System): The perfect testbed for cmd_vel geometry twists.
• SLAM Mapping: The smooth, vibration-free turn-in-place capability is critical for accurate Lidar mapping.

Virtual Technician & Wiring Guide ⚠️

• Critical Warning: DO NOT drive these motors directly from your Arduino or Raspberry Pi pins. You MUST use a motor driver.

Wiring Logic (4WD Mecanum):

• Left Front Motor -> Driver Channel A
• Right Front Motor -> Driver Channel B
• Left Rear Motor -> Driver Channel C
• Right Rear Motor -> Driver Channel D

Note: You will need either a 4-Channel Motor Driver Shield or 2x L298N Drivers to control all 4 wheels independently. Independent control is mandatory for strafing.

Frequently Asked Questions (Technical FAQs)

• What is the difference between this and a normal car chassis?
  This uses Mecanum wheels, allowing it to move sideways (strafe) and diagonally, which standard wheels cannot do.
• Does this kit come assembled?
  No, it is a DIY kit. You will need to assemble the plates, mount motors, and attach wheels using the included screws.
• Can I control this with an Arduino Uno?
  Yes, but the Uno cannot power the motors directly. You need a motor driver shield or module.
• How many motor drivers do I need?
  To use the Mecanum features fully, you need to control 4 motors independently. We recommend using two L298N drivers or a dedicated 4-channel motor shield.
• What is the payload capacity?
  It can carry approximately 1kg to 1.5kg effectively on flat surfaces.
• Are the motors included?
  Yes, 4 DC gear motors are included in the box.
• Do the wheels have bearings?
  These are standard kit-grade Mecanum wheels; the rollers spin on steel pins. They are durable for hobby use but not industrial sealed bearings.
• Can this chassis work on carpet?
  Mecanum wheels struggle on thick carpet due to friction interfering with the roller movement. Hard floors or thin carpet work best.
• Is there a code library for Mecanum wheels?
  Yes, there are many open-source Arduino libraries available. Search for "Mecanum Drive" or "Holonomic Drive" libraries.
• What voltage should I run the motors at?
  They run best between 6V and 9V. A 2-cell LiPo (7.4V) is the sweet spot.
• Does it include a battery holder?
  Yes, a standard AA battery holder is typically included, but we recommend upgrading to rechargeable Li-ion cells.
• Can I mount a Raspberry Pi?
  Yes, the aluminum plates have various slots that can accommodate Pi standoffs, though you might need to drill one or two holes for specific alignments.
• Is the chassis pre-drilled for sensors?
  Yes, there are slots suitable for mounting ultrasonic sensors, servos, and line followers.
• What is the material of the wheels?
  The wheel hub is plastic, and the rollers are rubberized for traction.
• How fast does it go?
  At 6V, the speed is approximately 0.6 m/s, which is a brisk walking pace for a robot.
• Why is my robot not moving sideways?
  Ensure your wheels are mounted correctly. The rollers on top should form an 'X' shape when looking down at the chassis. If they form an 'O', they are swapped.
• Can I use this for a line follower?
  Yes, but Mecanum wheels are overkill for line following. Standard wheels track straighter.
• Does it include a remote control?
  No, this is a chassis kit only. You need to add your own Bluetooth, WiFi, or RF receiver.
• Are spare parts available?
  We stock spare DC motors and individual Mecanum wheels if you need replacements.
• Is this waterproof?
  No, the motors and chassis are not waterproof.