Mechanical stopwatch

A mechanical stopwatch is a timer that counts time from 0 to 999. When the time reaches 999, it starts counting from zero and does not need to be rewound. The whole mechanism is powered by an 8g servo. The switch is already built into the electronics and the only unprinted parts are the 8g servo and the 1.5V AA battery. 2 or 3 AA batteries could be used to increase the performance. the timer can be placed in 2 positions: lying down or standing on the leg as in the picture. The construction instructions can be found between the pictures and it is also shown where to apply glue and where not. If you don't have a servo or don't need to turn it into a motor bike, just print out the clock and instead of the part with the motor, we'll put a turning handle.