What's in the box ?
Thais kit contains everything you need to build a bell for your room operated by gears and a crank. All is included : you will play with gears, screws, nuts, washers.
Once you've built your doorbell: turn the crank, watch the gears enter into motion to hit the bell and make it ring. You can add color (with paint or oil pastels) and fiw it to your door thanks to the holes on the corners.
What are you going to learn ?
- How gears work
- Movement transmission and gears train
- The different types of gears