Mechanical Lift

Hello everyone,
Today I’m gonna show you a project I did when I was in 9th grade.

It’s a lift powered by a electric engine connected to a pulley in whose axis is a threaded rod. So the threaded rod spins and the “lift” is attached to a nut, making it possible to go both up and down.

To change the spinning direction of the engine a manual commuter is used. In the top part 4 LEDs make an arrow that shows if the lift is going up or down.

Additionally, there are two switches at both ends of the way that the lift follows, stopping it when it has reached any of them. Here is a huge gallery of picks and a some videos to show it more clearly.