The structure is made with makerbeams. The kaleidoscope is placed on 4 bearings. The motor is a 28byj-48 stepper with a ULN2003 controller. The controller is attached to an Arduino Duemilanove. The Arduino is connected to a potentiometer to control the rotation speed of the kaleidoscope. There is also a switch to control the direction of the rotation. To transmit the motion to the kaleido a Lego rubber wheel is used. The camera is a cheap surveillance camera.
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