Project: Lunar Mineral Sorter (LMS) - Static

This year hosted the celebration of the first moon landing on the 20th July 1969, as well as the release of NXT 2.0 on the 1st August 2009! The LMS (Lunar Mineral Sorter) - Static Edition combines these two events into one NXTLog project buildable using one NXT 2.0 kit!To enhance the collection of available knowledge findable on the Moon, the LMS - SE was designed. once launched from the base shuttle, this stationary robot searches for minerals/rock samples (it can rotate up to 90 degrees left or right), lowers a mechanical arm and grabs the object, followed by scanning the object using the colour sensor to check if it is the object wanted by scientists back on Earth. If so, it is collected, and further objects are searched for. The LMS - SE can collect and hold up to 3 rock samples (aka: zamor balls).

Improvements
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* Add a counter-weight onto the claw/grabber
* Possibly reduce the weight of the claw

More information, including CAD and Program files, will be added on the NXTLog page for this project over the next few weeks!

http://mindstorms.lego.com/nxtlog/ProjectDisplay.aspx?id=9ae21e33-e40d-4250-bc99-c24e02b5d7c0

NXTasy Forum Discussion
http://forums.nxtasy.org/index.php?showtopic=4051

NXT Jungle Cutter

Straight from "Indiana Jones and the Kingdom of the Crystal Skull" comes the NXT Jungle Cutter! As seen in the film, the NXT Jungle Cutter can cut down trees using its' front saw blades (Exo-Force Wheels), and crush stray branches and twigs with its' 'Grinder' mounted just above the front triangular 'shield' (See Pictures).The NXT brick is mounted behind all of this inside the cabin of the Jungle Cutter.The NXT Jungle Cutter uses two NXT Servo Motors, as well as 2 PF Motors (One PF Motor is a dud, and is mainly a cosmetic and used to keep the model symetrical and balanced). The PF motors are connected to the NXT Brick using a converter cable that was made by cutting a PF Motor wire and a NXT cable wire in half, and then soldering them together. One PF Motor controls the front saw, and the other the Grinder mounted just above the saw.

The Saw and Grinder,

The 'Saw' of the NXT Jungle Cutter was made using two wheels from the Exo-Force model "Mobile Devastator (Set# 8108), and is powered using one PF Large Motor (The other PF motor is a 'dud', and is used to keep the model symmetrical). As one wheel turns, powered by the PF motor, it meshes with the other wheel, allowing it to rotate as well. A castor wheel has been attached to the Exo-Force wheels to help them balance and mesh.

The Grinder is mounted just above the saw, and is powered using a small PF motor and a worm gear.

The Tracks

The Tracks of the NXT Jungle Cutter are both powered by individual Servo Motors, and are connected to the front of the model either side of the 'saw'.

NXT Batpod - Videos

I have just uploaded a video of the NXT Batpod being autonomous on YouTube, here it is:



Another video of the NXT Batpod in action can be found here

NXT BatCycle ( Batpod )

To celebrate the release of Batman’s latest film, “The Dark Knight”, the NXT BatCycle was created! Armed and dangerous, the BatCycle can handle any opponents it may encounter with its’ hidden rocket launcher that expands from the body of the bike. With its’ large wheel area, the NXT BatCycle can also stand and move unaided! (with minor turning exceptions)


The BatCycle is a possible NXT (NeXT) generation of the Dark Knight’s vehicle collection, and has been designed in terms of style to be as similar to Batman’s other vehicles (Batmobile, Batwing, Batboat, etc) as possible (Black TECHNIC panels)

The BatCycle’s documentation has been split up into four main modules, as well as a small section on the NXT BatCycle’s weapon, and how to construct the black TECHNIC panels from the TECHNIC Tow Truck (Set No. 8285). An .LXF file of the basic construction of the BatCycle as well as a basic program, have also been provided on the NXTLog page for this model.

For more information on the NXT BatCycle, please check out its' NXTLog page here

NXT NXT Competition - Results

The results of the NXT NXT competition are in... and the NXT Whac-A-Mole recieved the creative use of NXTlog award! Here are the judge's comments:

"One of the most creative projects submitted to this challenge, a NXT Whac-A-Mole! The idea of this model is to push, or hit as many moles that pop in and out of the "Mole Whacking Platform" as quickly as possible. When a mole is hit, a score indicator mole that is attached to the score tower will be raised. The NXT Whac-A-Mole is controlled and powered by two NXT bricks, one controlling the mole's touch sensors and motors, and the other controlling the score tower and indicator, light sensors, and any other sensors and motors that cannot be plugged into the first NXT brick. LinearActuator provides excellent pictures, a detailed NXTLOG and screen shots of the master and slave prgrams. We would love LinearActuator to share an LDD file and a video of the robot in action. (This is LinearActuator's 2nd project on NXTLOG.)"

I am pleased that the NXT Whac-A-Mole has won an award title, but I am going to try and aim higher during the next competition and try to achieve the Champion award!

More info on the results of the NXT NXT Competition can be found here

More Information on the NXT Whac-A-Mole can be found here

NXT Whac-A-Mole

After blogging about the latest NXT competition, I decided that I might as well enter it. My entry? A NXT Whac-A-Mole! All of the details can be seen on NXTLog(http://mindstorms.lego.com/NXTLOG/ProjectDisplay.aspx?id=e246a926-5dbf-480d-8d6d-cd03c84ed458)

Here is a link to a YouTube video showing the NXT Whac-A-Mole in action!

http://www.youtube.com/watch?v=zaUfiYdSh3M

The NXT Whac-A-Mole uses two NXT bricks and an assortment of motors and sensors to create an excellant entertaining and amusing game machine that the whole family can enjoy.

Summary:

The score tower was made using the Catapillar tracks also from the Techic Bulldozer. When a point is scored, the tracks move, causing an attached score indicator to be raised or lowered.

When the score indicator reaches the top of the tower, an Ultrasonic Sensor tells the master NXT brick to lower the score indicator and begin a new, faster, harder game for the player.



The Light sensors and Hi-Technic Colour Sensor are used to help create an exciting atmosphere, and can easily be programmed to light up in a series of patterns when the player scores a point.

Using Bluetooth, the "Slave" NXT brick tells the "Master" brick whenever a mole is hit. The moles are made out of many engine chassis from such models as the Technic Bulldozer. When hit, the engine chassis pushes down onto a touch sensor, which tells a NXT brick to add a point to the player's score, raising a point indicator attached to a score tower.