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Simple Mechanics: Cuckoo Clock

Cuckoo Castle

Submitted by fchasen on Wed, 04/03/2013 - 10:30


We wanted our clock to have the element of fear and surprise.

The crank winds the drawbridge down, but instead of the dragon being present behind the draw bridge, it pops up out of the roof of the castle.

We used a linkage and pulleys to translate the rotational motion of the crank to make the dragon pop up.

Back view
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Drawer-Pop Cuckoo Clock

Submitted by stlim on Tue, 04/02/2013 - 22:39


This cuckoo clock is operated by one servo motor. Drawer-like door opens as the bird pops up and makes sound to signal the time.


The servo motor makes the drawer move forward (open) and lifts the bird. Its partial rotation is conveyed to the two parts through wires. A wheel translates it into another rotational movement to pop up the bird. A pipe translates it into linear motion of the drawer.


Components Used

- 1 arduino uno board

- 1 potentiometer

- 1 servo motor

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A beatiful Dinosaur clock, Angry Birds inside

Submitted by euiyoungkim on Tue, 04/02/2013 - 21:49


: A beautiful & sleek design "Dinosaur clock", Angry bird pops out while the mouth is opened. The structures are made of pieces of white foam boards and wood sticks. Angry Bird and the upper jaw are connected in one mechanism, so they move together at a time. Our team tried to make it as simple as possible to prevent the over usage of materials. 


: Nathan, Shaohan, Derek, and Euiyoung

Screen Shot 2013-04-02 at 오후 10.37.02.png
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Cuckoo Clock

Submitted by MarieSpliid on Tue, 04/02/2013 - 21:44
MarieSpliid's picture

This is our Cuckoo Clock for the simple mechanics assignment. The video below shows how the doors open and close automatically. The bird is not automated yet, but the motor for the bird already runs.



  • 2 servo motors
  • Arduino
  • Bread board
  • string, cardboard, paper, metal string, wooden sticks, plastic tubes, plastic wheels, tape, etc.




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Piston Cuckoo Clcok

Submitted by mschiff on Tue, 04/02/2013 - 20:20
mschiff's picture

Group: Chan, Deb, Michael, Søren


Front Side
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Submitted by syh on Tue, 04/02/2013 - 15:42

A very pretty bird peeps out on her stage when the curtains open. As the photocell in her hat senses that she is in the light, the LEDs in her bikini top turn on to attract attention, and she sings "La Vie en Rose." Her stage is propped up with wood and can be controlled using a servo motor.


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Cuckoo Clock Knex!

Submitted by Jenton on Mon, 04/01/2013 - 20:59


A simple machines device built from K'nex pieces that uses gears to operate a swinging door and a paper crane. As the door opens, the crane pops out of the door. As the door closes, the crane pops back in.

Group Members:

  • Michael Craig
  • Sean YH Chen
  • Eddie Lee
  • Brian McRae
  • Jenton Lee

Materials Used:

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