Make your own doorbell, perhaps for your bedroom, with this kit from Koa Koa. An exciting way to learn about gearing and friction, this kit includes everything you need to make a working doorbell. Koa Koa is passionate about the maker movement, and their kits are aimed at inspiring children to use their hands and minds to learn and create.
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
What's included: A step-by-step visual instruction booklet, and additional information about the subject, in Dutch, English, German, Spanish and French languages. You will find wooden elements: three large wooden gears, a large board and small pieces to assemble. There are also screws, nuts, rings, washers, ears nuts, hair elastic and bike bell.
Recommended for 6+ years age
Size : 27 cm x 18 cm x 5 cm
Made in EU, assembled in France by workers with disabilities