Category Archives: NXTMMX – Motor Mux

NXT Beer & Soft Drink Bottle Opener

After seeing a couple of LEGO Mindstorms NXT Bottle Openers on the net, I decided to tackle building my own… The task turned out to be somewhat more difficult than I envisaged. The most difficult part by far was the Gripper Mechanisms, as they had to securely hold the Bottle and it’s cap in a manor that allowed them to be unscrewed.

Quad Track: IR-Ball Seeking Crane

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.

The Mars Rotacaster Rover – Part II

Lookout NASA, you have Rover competition. And it uses the amazing Rotacaster Omni-wheels for unsurpassed manoeuvrability in confined spaces. The Mars Rotacaster Rover is based on the current NASA Mars Rovers with their unique suspension set-up.

The Mars Rotacaster Rover

Part I

Lookout NASA, you have Rover competition. And it uses the amazing Rotacaster Omni-wheels for unsurpassed maneuverability in confined spaces. There is no need of a steering mechanism to turn the Rotacaster Rover thanks to the unique wheel design.



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