Make a hand operated doorbell and discover how gears work.
This kit contains everything you need to build a crank operated doorbell and discover gear trains and basic mechanical principles such as friction effect.
How does it work?
Start by detaching the gears of wooden planks, then identify all small parts and hardware. Once mounted, you can use paint to customise the doorbell and then attach it to the door of your bedroom.
What will you learn?
- The different types of gears: gear trains, rack, pinion, circular, etc.
- The ratios to calculate the speed at which the gears are turning
- The effect of friction, the crank
Build a Crank Operated Doorbell
What's inside the kit?
- wooden elements: three large wooden gears, a large board and small pieces to assemble
- screws
- nuts
- rings
- washers
- ears nuts
- elastic
- bike bell
- illustrated booklet with all the assembly steps
- Pedagogical content on the theme
No tools needed.
Recommended Age 6+
Dimensions: 27 x 18 x 5 cm
Weight: 450g
Inspired by The Maker Movement, Koa Koa was born out of a simple idea: Let kids build their own toys to understand Art, Science and Technology.
They hope their kits will stimulate the curiosity and invention spirit of the new generation by giving an opportunity for kids to develop their inventor mindset, their problem solving skills and to do something incorrectly as a way to learn. By enabling kids to reconnect with the physical world and live a unique experience to understand how everyday objects are made. They offer an invitation to make, invent, be creative...and change the world of tomorrow.
