How to Make a Wood Car Engine

Materials

* 1 piece of wood (hardwood is best)
* 1 dowel (slightly smaller than the hole drilled in the wood)
* 1 screw
* 1 washer
* 1 nut

Tools

* Drill
* Drill bit (slightly smaller than the dowel)
* Saw
* File
* Sandpaper

Instructions

1. Drill a hole in the center of the wood block. The hole should be slightly smaller than the dowel.
2. Cut a piece of dowel to the desired length. The length of the dowel will determine the size of the engine.
3. Insert the dowel into the hole in the wood block.
4. Drill a small hole through the center of the dowel.
5. Insert the screw into the hole in the dowel.
6. Place the washer over the screw.
7. Tighten the nut onto the screw.
8. File and sand the engine to smooth any rough edges.

How it Works

The wood car engine is a simple device that uses the power of a screw to turn a wheel. When the nut is tightened, it forces the washer against the head of the screw, which in turn forces the dowel to turn. The dowel is connected to a wheel, which turns when the dowel turns.

Troubleshooting

* If the engine does not turn smoothly, check to make sure that the dowel is properly aligned in the hole in the wood block.
* If the engine turns too slowly, try using a larger dowel.
* If the engine turns too quickly, try using a smaller dowel.

Tips

* You can decorate the engine with paint or markers.
* You can use a variety of different materials to make the engine, such as metal or plastic.
* The engine can be used to power a variety of different projects, such as cars, boats, and airplanes.