Tag Archives: sorting

LEGO Mindstorms NXT Coloured Ball Sorting Crane

LegoMindstormsNXTColouredBallSortingCrane
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Good things do sometimes come from disasters. A couple of days ago I was attempting to lift down approximately 5Kg of assorted LEGO parts when the container took advantage of gravity, and headed straight to the floor. This ended in a completely empty storage container, and LEGO dispersed for metres about. Towards the end of the cleanup, I came across a pair of Green Mudgaurds from a LEGO Technics 8291 Green Dirt Bike.

Ball Sorting Crane with Ultimate Grabber

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As mentioned in my previous post, I’ve been working on-and-off for a couple years now on a reliable LEGO Technics, Crane Claws which will pick up balls reliably. To show case my ‘Ultimate Crane Grab’, I’ve built a LEGO Mindstorms NXT Coloured Ball Sorting Crane, which runs along a geared tressel, which features my Ultimate Crane Grab mechanism! The Crane picks up coloured Ping-Pong Balls, and drops them into cells according to their colour.

Fast Resistor Sorting with LEGO

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Still got that container on the bench with a pile of unsorted resistors left over from projects, or perhaps have purchased a mixed-lot of assorted resistors to begin with. Resistors have colour bands printed on them, rather than numeric values, which makes them more difficult to sort in you don’t know the resistor colour-code of pat (if they still teach it?). Or like me your eyes ain’t what they used to be! Either that a 1/4 watt resistor has shrank by a factor of 4+ in the last 30 years or so….

NXT Crane with Ball Sorting Conveyor System

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This is a LEGO Mindstorms NXT Crane which delivers balls to a Coloured Ball Sorting Conveyor System. The Ball Sorting Conveyor System uses RC Servo Motors to control the Conveyor and Sorting Mechanism. A single NXT Brick Controls 4 standard 180° RC Servos in the Sorting mechanism and another is used for the Crane’s Grab. Two Full-Rotation 360° Servos are used to drive the two conveyor belts. The Servo Motors are controlled via Mindsensors NXTServo Controller module.

Close-up of FlexiPicker Sorting

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A close-up of my Lego Mindstorms NXT FlexiPicker sorting coloured balls. The is based on the ABB IRB 360 FlexPicker. The IRB 360 FlexPicker™, is the SECOND GENERATION delta robot for precision pick and place applications. The robot has outstanding motion performance with shortest cycle times at high accuracy, and with up to a 3Kg payload. The IRB 360 is designed to work in in Food Industry applications.

NXT FlexiPicker Sorting Coloured Balls

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This Lego Mindstorms NXT FlexiPicker is based on the ABB IRB 360 FlexPicker. The IRB 360 FlexPicker™, is the SECOND GENERATION delta robot for precision pick and place applications. The RB 360 FlexPicker™ has outstanding motion performance with shortest cycle times at high accuracy, and with upto a 3Kg payload. The IRB 360 is designed to work in food industry applications.



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