Step 1: Do drawings
Step 2: Cutting parts and drilling holes
What’s more the forstner bits are also used in this process. In order to make the wheels inside the body part, I drilled four holes with forstner bits, two in the front of the body and two on the back. With the holes, the wheels can be hidden in the frog’s body, and it looks much better than what it used to be. With the rear wheels on each side, the frog can move forward.
Step 3: Making frog's mouth
Step 4: Almost done!
When the frog move on the ground, its legs are moving, and at the same time it is smiling!