Two sizes of robot are included as seperate zip files. 

The Pilot Hobbies Pathfinder Mini is an easy to control 6-legged walker, which only requires two motors to allow walking in all 360 degrees, plus a servo for head tilt. The Pathfinder Mini has been designed to be a great introductory educational or learning platform, allowing the creator to focus more on problem solving, sensors, and functional programming of the robot, without the headache of managing multiple servos per leg or complex inverse kinematics equations.

Due to its simple nature, this robot lends itself well to not only microprocessor-based circuits, but also analog circuits and discrete logic gates. My personal build uses a BEAM Robotics style analog circuit, with 555 timers and transistor logic, for all its functions.

A single N20 Gear-Motor drives the walking mechanism, while a second N20 Gear-Motor rotates the head and drive assembly. This allows extremely easy control, without complicated walking code or servo control. Head panning and tilting is also simple to accomplish for environmental scanning and awareness, with only a single servo controlling head tilt, and panning sharing the same motor control as walking direction.

Leg geometries have been tuned to provide optimal traction and minimal slip between legs, making walking efficient. The head is designed to fit an ultrasonic sensor, and is positioned high above everything, ensuring good readings without interference from the ground or mechanical components.

Required Parts

Required Parts for Build:

Microcontroller & Motor Controller, or DIY Circuits

2x N20 Gear Motor

1x TowerPro 9g Servo

1x HCSR04 Sensor

Screws

31x M2 x 6mm Screws

17x M2 x 10mm Screws

9x M2 x 4mm Screws

6x M2 x 8mm Screws

3x M3 x 14mm Screws

2x M3 x 12mm Screws

6x 8mmOD x 3mm ID x 4mm Ball Bearings