Make a Hand Crank Doorbell (Age 6+)


This DIY kit will allow you to build a beautiful doorbell for your room. While building it, you will discover gear trains and basic mechanical principles like the friction effect. You will manipulate nuts, screws, washers, etc. Each step is clearly explained in the booklet. You will discover many kinds of gears and their function in the objects around us. 

What will you learn? 

– The different types of gears: gear trains, rack and pinion, circular, etc.
– Ratios to calculate the speed at which gears turn
– The friction effect, the crank

Youth Kits list value, and you may donate the suggested amount or select the kit for free.

3 in stock



What’s inside:

  • 3 large wooden gears
  • A large board
  • Small parts to assemble
  • Screws
  • Nuts
  • Rings
  • Washers
  • Wing nuts

Artist: Koa Koa