The case is a cheap plastic project case from my local electronic store. Aluminium tube is just scrap. The DC-motor is from broken down toy RC-car. The gearbox is from a Mustek photoscanner. The DC-motor controller I had to order from ebay, because it was both cheaper and easier to order from there than to design and build one yourself, (DC 1.8v-15V Wide Voltage 2A PWM Pulse Width Modulation Motor Speed Controller). Powersupply is an old Nokia 5V charger that, I had laying around.
The hardest part was to found matching gearbox and a motor. Luckily found them from a broken down RC-car and a old broken down scnaner. Thanks to the DC-motor controller the rotation speed is adjustable. The end result was this thing:
The gif is just an experiment, needs more light and stuff.
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