Make a Hand Crank Doorbell
£32.00
Product details
- Encourage making, learning and play with by making your own doorbell
- Use the gears, bike bell, screws, washers, nuts, etc. to build a doorbell for your room
- Learn about how the crank, rack, pinion, and cogwheels work
- Turn the crank, watch the gears start turning, then push the hammer that hits the bell. Once it is all put together, you can paint your doorbell whatever colour you like - make it stand out or blend in to the wall, door frame or door
- There are 4 holes on the plank so you can screw it to your bedroom door
