The Burpee Coach

Introduction:

The midterm project had 3 requirements.
  1. Sensory input
  2. Analog output to control a mechanism
  3. 3D output
Coming from a strong technical background, I chose to challenge myself with a more difficult mechanism.  I chose the Geneva Stop, commonly used in mechanical watches and clocks, which translates continuous rotary motion into intermittent rotary motion.  I incorporated this mechanism into a device I call The Burpee Coach.
The Burpee Coach consists of a six-pronged Geneva Stop, a DC motor, and a potentiometer.  Each prong of the Geneva Stop holds a wooden figurine displaying a step of the burpee exercise; the potentiometer controls the motor speed, and so, the speed of the exercise

Motivation:

Almost every fitness magazine devotes a spread (or two) of their monthly issue to the explanation of workout plans that can be done at home, in the office, or wherever else is convenient without any special gym equipment.  Such workouts, including everything ranging from lunges and sit-ups, to bench dips and inclined pushups, are highly effective, and if done consistently deliver great results.
But who likes doing a million bench dips?  That is, assuming that you can figure out how do do one from whatever description they give you,  which is usually considerably lacking.  The Burpee Coach clearly shows how to do the burpee exercise, and by adjusting the speed with the potentiometer, becomes an exercise companion to increase motivation.

Video

Concept Sketch:

Bill of Parts:

  • 1 Arduino microcontroller with external power supply
  • 1 Standard Breadboard
  • 1 potentiometer
  • 1 19.5 volt external power supply
  • 1 DC motor from a kitchen mixer/egg beater
  • 1 1/4″ Wooden Dowel
  • Geneva Stop Parts laser cut on 1/8″ Hard Board

Circuit Diagram

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~ by katylinn on April 6, 2010.

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