LEGO Domino Row Building Machine

In the past few months, we have covered a bunch of cool LEGO robot. This robot happens to be a domino row building machine out of LEGO Technic. The machine has a motor that drives a pulley, driving an 8-tooth gear on the other end of a shaft. It has a slider that moves back and forth sliding one domino out of the magazine at a time. The below video shows the machine in action:

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