Tag Archives: quad

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.

Quad Track: IR-Ball Seeking Crane

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This is my LEGO Mindstorms NXT Quad Caterpillar Track Crane, which uses my ‘Ultimate Grab‘ to pick-up and retrieve a Hitechnic Infra-Red Electronic Ball. The Chassis houses 2x NXT Motors to drive the Left and Right pairs of Tracks. A third NXT Motor is used to raise and lower the crane arm. A Small PowerFunctions Motor is used to open and close my Ultimate Crane Claw attachment. The Small PowerFunctions Motor is controlled via a Mindsensors Multiplexer for NXT Motors (NXTMMX-v2). The NXTMMX allows the NXT to control two additional NXT or other LEGO Motors.



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