Once the gear is assembled, turn it  to check that it moves smoothly and insert the motor. Press each of the motor's wires on the ends of a AA battery to check if the gear moves. (At this point, the battery’s polarity does not matter.)

Wire the electronics section that controls the robot’s movements.
(If there are any alternative components, please leave a comment and let us know!)

• Adafruit Pro Trinket - 3V 12MHz
  
• Toshiba Dual Motor Driver TB6612FNG (Continuous 1A)
  
• Pololu 3.3V Step-Up Voltage Regulator NCP1402
  
• Breadboard
  
• Jumper Wires
  
• Battery Holder 2xAA
  
• Ceramic Multilayer Condensor １μＦ
  
• Break Away Headers
  
• Soldering Iron
  

Solder pins headers to the Trinket, motor driver and regulator boards. 
For the Trinket, you do not need to solder A6, A7 and the FTDI Header.
Also solder two pins to the wires of the motor and battery holder, to make it easier to connect to the breadboard.

avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)

Attach the Battery holder next to the gearbox with both sided tape. If the motor’s wires are too short, put it through the hole as shown in the picture.

From the yellow plastic part, cut off two of the the smaller cylinders with a nipper. 

Attach the breadboard with thick both sided tape. Since the head of the screw gets in the way, using thick tape will make it easier to attach the breadboard.

Referring to the image above and the Mechanical Giraffe’s instructions (No. 7, 8, 9), assemble the laser cutter pieces with the Mechanical Giraffe’s pieces. 
Be careful of the direction and order of the pieces

The grey pieces (A8) may be hard to insert through the hole, so use a plier.
If A8 does not fit, use a M3 screw and nut instead.

Insert Two AA batteries into the battery holder and check the Fabwalker’s movement. (At this point it won't be able to walk.) 
Chargeable lithium ion batteries such as eneloop are stable since they do not have voltage drops. Supply 3V with two batteries.

Gather Material for the Robot’s Feet, such as branches of a tree, flowers and grass.
Or you can use household items such as pens and tooth brushes.

Use Cable Ties or Twist Ties to attach the legs to the Fabwalker’s body. Something that can be used repeatedly.

(If you know a better way to attach the legs let us know in the comments. We used rubber bands for the previous version.) 

Insert the batteries, and the Fabwalker will come to life! 

It will be better to make a case to cover the electronics. For the WalkingTree version we 3D printed a case, put plants in it and made plants walk.

足の付け方や長さ、素材によって歩き方が変わってきます。