Moving Things (work in progress)



  • Alignment
  • Friction
  • Load support (don’t make the motor carry the weight)
  • Torque


Changing speed and torque

  • Purchased gearbox (common, worm drive, planetary)
  • DIY gears, pulleys, chains and cogs, levers


  • SDP/SI gears, pulleys, bearings, axles: drive train components
  • Servo City motors, mechanical prototyping parts, drive train components
  • Makeblock mechanical prototyping parts
  • McMaster-Carr everything
  • Inventables motors, CNC machine parts, drive train components
  • Adafruit electronics, Arduino, drive train components
  • Robotshop much of the above
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