Quadrapods / Hexapods

The Quadrapods  Walking Robot

Lynxmotion Symmetric Quadruped Kit

     

 SQ3 Walking Robot
The SQ3 is a 3DoF per leg quadruped robot with a symmetric body design. The robot’s symmetry makes this a very unique quadruped walker. The three DOF (degree of freedom) leg design provides the flexibility required to walk in any direction! The robot uses four HS-645MG servos along with four HS-422 servos. The combo kit includes everything you need to make a functional robot except batteries, charger and optional PS2 controller. This research level robot is perfect for college robotics labs and individuals looking to get started with creating code for quadruped robots.

The Mechanics
The legs are made from ultra-tough, high-quality aluminum Servo Erector Set brackets and the body is made out of Lexan. The robot is 6″ high when standing (foot to top bracket without electronics) and 9.5″ wide (foot to foot).

Controlling the Robot
The SQ3U combo kit comes with the SSC-32 servo controller and the BotBoarduino microcontroller. There is no separate wiring for a PS2 controller since the RC01-v2 PS2 system (sold separately) includes all necessary wiring. By offloading the servo pulse generation and sequence movement timing to the SSC-32, the main board has plenty of power to do some really cool things. The basic PS2 code (found in the Lynxmotion Github acount) allows you to control the robot using a wireless (or wired) PS2 remote control (sold separately). We strongly recommend the (RC-01 v2) wireless PS2 controller to get the robot up and running quickly. With the proper configuration, the popular hexapod Phoenix code (written by Jeroen Janssen (Xan on the forum). Thanks, Jeroen!) has been adapted to the quadruped to help you get started.

The SQ3F is the FlowBotics Studio version of the SQ3 walking robot. the kit includes the SSC-32 servo controller as well as a serial to XBee breakout board, a bluetooth module and a full copy of FlowBotics Studio. To control the robot, you create walking sequences within the FlowBotics Studio, and commands are send in real time via Bluetooth to the robot. All higher level mathematics is offloaded to the computer. The software is also compatible with a USB PS2, allowing you to more easily control the robot’s motion.

  • Servo motion control = local closed loop
  • Steering = omnidirectional
  • Number of legs = 4
  • Degrees of freedom per leg = 3
  • Motion speed = testing
  • Height (body) = ~2.00″
  • Height (overall) = up to 7″ (legs extended)
  • Width (body) = 5″
  • Width (overall) = 11″
  • Weight (w/out batteries) = 2.75 lbs
  • Ground clearance = up to 4.63″

 

 

 

 The Hexapods Walking Robot

 Lynxmotion Symmetric Hexapods Kit

      

 MH2 Walking Robot
The MH2 hexapod robot is designed around a simple mechanical leg design with all metal brackets. This leg design minimizes the number of parts required to make a two DOF (degree of freedom) leg and allows this robot to be steered like a tank. Forward, reverse and in place turning is supported. The robot uses standard sized Hitec servos for the legs. The combo kit includes everything you need to make a functional robot except batteries and optional PS2 controller.

The Mechanics
The body of the robot is made from ultra-tough laser-cut PVC structural components while the legs are made from high-quality aluminum Servo Erector Set brackets. The MH2 includes 12 servos; six HS-422 and 6x 645MG. The robot is able to adjust its height, walk forward and in reverse, as well as rotate clockwise and counter-clockwise, tit forward and backward, left and right and more.

Controlling the Robot
There are three control options for the MH2. The first combo kit, the MH2, comes with the SSC-32 and the Bot Board II + BASIC Atom Pro 28. This kit is programmed using Basic Micro Studio. The second kit, the MH2U, includes the SSC-32 and a BotBoarduino, and is intended to be programmed using the popular Arduino software. By offloading the servo pulse generation and sequence movement timing to the SSC-32, the microcontroller has plenty of power to do some really cool things. The sample code allows the robot to walk using the PS2 controller (sold separately).

The third kit includes a full version of FlowBotics Studio and includes the SSC-32 as well as a serial to Bluetooth board and Bluetooth module which allows for remote control from the computer. This approach offloads the higher level calculations to the computer. FlowBotics Studio includes a demo project for the MH2 with pre-written walking algorithms.

 

  • Servo motion control = local closed loop
  • Steering = Differential
  • Number of legs = 6
  • Degrees of freedom per leg = 2
  • Motion speed = up to ~10″/S
  • Height (body) = 3.00″
  • Height (overall) = up to 6.00″
  • Width (body) = 3.50″
  • Width (overall) = 7.00″ (legs straight)
  • Length (body) = 13.00″
  • Length (overall) = 14.50″
  • Weight (w/out batteries) = 3lb 5oz.
  • Ground clearance = up to 4.00″

 

 

      Lynxmotion Symmetric Hexapods Kit