Ugears "Mechanical Box" I DIY Self-Assembly Mechanical Kits For Teens and Adults Periodic Table The model has several means

The model has several means to control the frequency of oscillations: the weight of the pendulum bob

find out how the pendulum is used in a clock mechanism

Resembling a spiral staircase

The oscillations of the pendulum slow the transmission of energy from the rubberband motor to the movable elements extending the working time of the mechanism

Ugears "Mechanical Box" I DIY Self-Assembly Mechanical Kits For Teens and Adults Periodic Table The model has several meansThis pretty little box brings a dash of mechanical magic to your home or office. Push the side lever and the box raises, tilts and opens its lid to reveal the contents. Its a clever way to offer a business card or a fun way to store and show off your favorite trinkets. The kit includes two interchangeable front panels one for easily removing cards and one for keeping small items from spilling out. This Mechanical Box model works out great for your