Ugears Aero Clock 70157 Wooden Puzzle Craft Model No Glue or Tools Required for Adults and Children

The Ugears Aero Clock is a real working clock that you can make yourself, mount on the wall, wind up and watch the seconds, minutes and hours tick by. Aero Clock is an ingenious puzzle and DIY clock mechanism, unlike other clocks. Ugears watches pull down a weighted bag by gravity (you can fill the bag with sand or salt). Raise the bag using the pulley and wind the watch. When the weight slowly descends, the drive gear rotates, and the drive gear rotates the escape wheel through the reducer. The clock features an adjustable weighted pendulum that interacts with the escape wheel via a stable scale on the escapement. By sliding the weights on the top and bottom of the pendulum, you can adjust the ticking sound of the clock to the second. Did you know that before standardization, some clocks moved clockwise and others counterclockwise? In the role of "Cuckoo", Ugears Aero Clock features a model hot air balloon. The suspended balloon will rapidly descend when the time is right, and then slowly rise again during the next hour. As you create the AeroClock, a wooden wall clock with a pendulum, you will learn the basic principles behind clockwork, how the steady influence of a swinging pendulum works through a locking anchor, and how to lock and unlock the escapement gears one second at a time. Thereby it regulates the (slow) descent of the weight when driving both the power and timekeeping gears. Model size: 220*47*16.5 cm Package size: 37.8*17*5 cm Number of parts: 320 Estimated assembly time: 11 hours