Step 1: Assemble the Gear Box.

Assemble the gearbox by following the instruction included in the gear box kit. Cut the shaft to 47mm, and the gear box should be on the slowest speed.

Step 2: Attach the Gearbox to the Main Frame.

Using a screw driver and screw, attach a gearbox you assembled to the main frame.

Step 3: Attach a Battery Box.

Attach battery box using sponge tape.

Step 4: Attch Parts (1)

Attach the main shaft drive hook to the main shaft. Make sure that each hooks are facing the opposite way.

Step 5: Attch Parts (2)

Attch the leg and the upper hook to the main frame. If the parts doesn't go through some of the parts, you can use a drill bit to make the hole bigger. For the upper parts, you will use a bigger pins, and for the bottom main hook, you will use the smaller pin.