Tag Archives: drive

LEGO Technic Planetary Geared, Drive Assembly

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Introduction to Planetary Gearsets & Gear Ratios:

Any planetary gearset has three main components:

  • The sun gear
  • The planet gears and the planet gears’ carrier
  • The ring gear

NXT Quad Drive Holomonic Platform

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I’ve been working on a new LEGO Mindstorms NXT Dual Drive, Quad Holomonic Platform. This Robot uses dual Rotacasters on each of the four axis’s. The Robot also uses four NXT Ultrasonic Sensor between each of the four axis’s. The four Ultrasonic Sensor work in ‘MODE 3: Event Capture Mode’. The Ultrasonic Sensor are cycled through one-at-a-time, to avoid interference between each of the sensors.

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