Tamiya Bipedal Walking Robot 70256

The Bipedal Walking Robot is a new addition to the Educational Construction Series. A walking robot moves by transferring its weight. When the weight transfer unit. which is composed of a gearbox and battery case. moves right and left. the model rocks and its legs move forward.

• Length: 85mm. width: 132mm. height: 107mm (138mm with guide rod attached)
• Weight: approximately 138g (including batteries).
• Two separately sold AAA batteries are required. Continuous running time: about 2 hours.
• Gear ratio: 114.7:1. includes a low-rpm type 130 motor.
• Speed: about 4.8cm/s (170m/h) (The model moves 1m in about 20 seconds.)
• Running on even surfaces is recommended.
• Features light gray plastic parts.
• The legs and plastic slides have holes to attach parts such as universal shafts. arms. and your original parts by tapping screws. Enjoy changing its appearance!
• Easy snap-fit/screw-together assembly
• Challenge level: 3 (5 is the highest). Approximate assembly time: 120–180 minutes.

Robot Movement

• Crank rotation is converted into reciprocating motion by the slider.
• Turning
• Adjusting the gearbox attachment angle and limiter alters the model direction.
• Gearbox attachment angle is adjustable in three directions (right. middle. and left). and it can be changed even after assembly. (If gearbox is moved to left. the model turns right.)
• The legs have limiters to limit model lean. When the limiter is down. the body lean decreases. and stride length becomes shorter.
• Attaching a guide rod redirects the model if it hits an obstacle.
• Making the model hold things such as an AAA battery (approx. 11g) changes its center of gravity. which lets the model turn.