Pulsating box with moving lid

I first brought a perspex box with no lid and then I got a perspex sheet and cut a lid out to go onto the box to which I then added hinges so that it can open and close freely. Inside the box i fitted a peice of wood with a short block of wood stuck to it, to the front of the box. On this peice of wood I attached a tiny geared motor with a cam follower which I thought was really cool being so small. Alongside this inside the box are 3 green leds that have been solded to wires to make them longer. The code for the LED makes them pulsate and the geared motor turn repeatedly to allow the cam follower to flip up the lid of the box making it bang down. Then I  painted the box black and eched into the paint, vains to show the light of the LED shinning through.

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