Additional mechanisms kit

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Additional mechanisms kit



  • Conversion of motion using the Geneva mechanism

  • Conversion of motion using a ratchet



This kit includes two popular mechanisms for experiments in conversion of motion from one form to another.  These include the Geneva mechanism (sometimes called the Maltese Cross mechanism or crank and star), and a ratchet mechanism. 

Students test each mechanism to see how it works and note the differences in the way that each mechanism converts the motion.  The two mechanisms are the same as those used in real applications, such as CNC machines, hand tools, turnstiles and lifting hoists.  Each has a unique way of converting motion, shown by the experiments. 

Essential base unit and kit must be ordered separately.

Learning objectives/experiments

  • Ratchet mechanisms
  • Geneva mechanisms



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