A4WD3 Wheeled

Last modified by Eric Nantel on 2023/11/03 07:06


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The Lynxmotion A4WD3 Rugged Rover is a general purpose mobile robotic platform. The frame is intended to be used in three configurations: 4WD; Mecanum & Tracked, and variations of each platform include without electronics (so developers can integrate their own parts); an RC version and microcontroller-based for autonomous or semi-autonomous use.

The machined aluminum frame integrates rotary seals around each motor shaft, and solid rubber cord between the frame and all panel openings, making it dust and water resistant. A large marine inspection hatch on the top panel provides easy access to internal parts as well as being able to quickly swap or recharge batteries. Aside from the internal electronics mounting plate, the platform is symmetric and can be inverted.

The rover includes four powerful 12V DC motors coupled to 51:1 all metal planetary gears. The rear shaft of each motor is equipped with a magnetic encoder which provides 12 pulses per revolution (PPR). These motors provide 4WD and allow the rover to reach a top speed of around 3m/s (120”/s) without payload. 

Front and rear access panels are made of G10 composite and are intended to allow users to machine openings to add their own components, which may include a wired tether for power and control, LED or LCD feedback, a handle, or whatever else their application may need. Included are a pair of transparent polycarbonate panels which allow for an internally mounted camera and/or or LED lights for increased visibility. Additional panels are available separately.

This version includes (assembled) bead lock off road wheels offer great traction on a variety of surfaces and are foam filled and offer 40mm of ground clearance, allowing it to be used effectively over brush, forest floor, paved and unpaved roads, in urban environments and more. This wheeled version can reach a top speed of around 3m/s (120”/s) without payload. 


  • Planetary geared DC motors (12V) with rear encoders
  • Machined aluminum frame with G10 composite plates
  • Shaft seals & solid rubber cord for water and dust resistance
  • Internal mounting plate for electronics & battery
  • Water and dust resistant frame


A4WD3 Wheeled

  • Max speed: ~1.4m/s (55in/s)
  • Weight: 5.0kg (11.023lbs)
  • Rating: Water and dust resistant
  • Chassis: Aluminum frame & G10 (fiberglass) Pannels
  • Wheels: 158mm beadlock offroad tires


  • Output Shaft: D-Shape 8mm
  • Operating Voltage: 12VDC
  • Gears: Metal planetary gear
  • Unload Speed: 170RPM (±10%)
  • Loaded Speed: 145RPM (±10%)
  • Torque: 11.5kg.cm (9.98lb.in)
  • Gear Ratio: 51:1
  • Current: ≤3A


  • Operating Voltage: 5V
  • Signal: Square wave AB 90 deg,
  • Pulse: 12 PPR
  • Frequency: 800kHz


  • Length: 377mm / 14.843"
  • Width: 437mm / 17.205"
  • Height: 158mm / 6.220"
  • Ground clearance: 41mm / 1.614"

User Guide


CAD Files

What's Included

All Kits

 Rover RobotsScrewsHex Keys
 1x A4WD3-KT8x CPS-034x SHS-19SHS-171x HEX-1.5mm1x HEX-10mm
 Frame Only10mm x M3 Setscrew12mm x M1210mm x M3Hex Key 1.5mmHex Key 10mm

 WashersTubing & HubsWheels   
 4x LW-014x A4WD3-WH4x A3WD3-W-BL   
 M12 Lock Washer8mm to 17mm Hex HubBeadlock Wheel   


Autonomous Kit

 WiringModulesMot. ControllersBatteries
 1x WH-XT60-XT30-012x SC-011x SEA-011x BBU-01Sabertooth1x SL-LP-08
 Power HarnessServo Cable 12"Servo Extension Cable 6"BotBoarduino Microcontroller2x12A4000mAh 3s LiPo Battery

 1x B3AC1x USBC-02    
 LiPo ChargerUSB Mini Cable    


Radio Controlled Kit

 Wiring Mot. ControllerBatteries
 1x WH-XT60-XT30-01 1x SEA-011x T8S-BTSabertooth1x SL-LP-08
 Power HarnessServo Cable 12"Servo Extension Cable 6"8 CH Remote with PPM Receiver2x12A4000mAh 3s LiPo Battery

 1x B3AC     
 LiPo Charger     

Created by Eric Nantel on 2021/07/28 07:37
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