If you’re looking for a new way to count-down our time inside, you can make your own planetary gear clock.via instructables(Old) mechanical clockworks are incredibly interesting and pleasing to watch, but are unfortunately almost impossible to build yourself. Mechanical clocks also lack the carelessness of the precise digital technology available today. This Instructable shows you a way to combine the best of both worlds; by driving mechanical clock hands through a planetary gearbox with a stepper motor and an Arduino!. // Read more: original article.
