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Published on Dec 12, 2011
merry christmas and happy holidays created by bd594, toronto, canada
This project was really difficult, it was 70% timing and 30% execution. There are alot of YouTube videos with floppies and stepper motors playing songs. These motors have a quick response time because they are not under a heavy load. The problem with a flatbed scanner is moving the large carriage head. It was not designed to move quickly and when it is playing music you will notice the head changes directions. This is to prevent the carriage from smashing into the chassis. As the notes are playing the carriage head has to periodically change direction and this can add many seconds to a 3 or 4 minute song. This takes extra programming to compensate for these delays. As for the drums they are just a couple of solenoids connected to a pulley system in order to ampilfy the movement. The solenoids are used and have very slow response time, you may notice a few beats are missed during the drum rolls. Believe me when I say I have a new respect for drummers.