Introduction: LEGO NXT 2.0 MLRS

Picture of LEGO NXT 2.0 MLRS

Hey all I'm back with an new Lego instructable! I made the first lego nxt MLRS missile launcher the shoots rubberbands in the world:D yay!
I built this because i wanted to put my rubber band firing mechanism from my Lego gun to a tank of some sort, and i came up with this. It can be programmed or remote controlled from an bluetooth pc, android or ios device using these apps, https://play.google.com/store/apps/details?id=com.urbandroid.mind&hl=en
https://itunes.apple.com/gb/app/inxt-remote/id317399938?mt=8
or the standard mindstorm software for pc. This Mlrs can either shoot down toy helis or help you destroy some zombies in the next zombie Apocalypse!
Anyway now that I've made it I will show how you can make it too. But before that pls watch this video...

Step 1: Materials

You will need:

LEGO NXT MINDSTORMS 2.0 KIT

Computer

An android/ apple mobile phone/tablet/ipod

Step 2: Attach Tracks to the Motors

Picture of Attach Tracks to the Motors

Copy what I did in the photos, be sure to use the pinhead grey stick. Then just attach to the bottom of motor. On the other side of motor attach 2 black mini tubes. Then just make another one! Of course this time the wheels go on the other side of the motor.

Step 3: Joining the Motors Together

Picture of Joining the Motors Together

Now make the 2 types of connectors to join the motors together:D

Step 4: The Base & Cabin Holder

Picture of The Base & Cabin Holder

Build this, this goes in between the motors and this will hold the base and the cabin.

Step 5: The Base

Picture of The Base

Make the base all u need is some tubes and beams. Then fix this onto the 'base & cabin holder'.

Step 6: Make the Rotatory Base

Picture of Make the Rotatory Base

This base will allow you to move your missile turret up and down, left and right. Once built attach to back of base

Step 7: Building the Missile Turret

Picture of Building the Missile Turret

First of all build 2x structures 1 and 2 (tagged in photos) . link them together with a long black connector. Then build the firing motor which is a motor with  tow mini gears each side. Then connect the motor to the 2x structure 1 and 2. Finally attach it to the rotatory base.

Step 8: Building the Roof of the MLRS

Picture of Building the Roof of the MLRS

Build this structure, remember to leave a slight gap for the top of the motor to fit. Then use the bent beams to attach to the firing turret.

Step 9: Attach the "cabin"

Picture of Attach the "cabin"

The cabin is actually very simple to attach, because it is the NXT brick! Basically attach the nxt brick to the base & cabin holder. *refer to step 4 if needed.

Step 10: The Wiring

Picture of The Wiring

Attach all wires to ports A, B, and C side of the NXT brick, since there is no sensors built in the MLRS. Note that The 2 driving motors goes to port B and C and firing motor goes to port A. 

Step 11: Remote Control

Picture of Remote Control

Please download apps such as Mindroid app for android devices or iNXT remote for iOS devices https://play.google.com/store/apps/details?id=com.urbandroid.mind&hl=en
https://itunes.apple.com/gb/app/inxt-remote/id317399938?mt=8
If you have a bluetooth enabled computer you can use the default remote app included in your NXT Mindstorms software CD.
Then test your MLRS out! If your MLRS did not go in the direction you wanted it to go please rewire your motors to a different port, but keep firing motor at port A. Thanks for reading this instructables.

Comments

DroneMaster (author)2014-09-05

Hi there, may I know how to attach and make your rubber band firing mechanism? Thankee......

jdusk (author)2014-06-17

i built something like this before but it couldn't move. nice job

DarkOwlProductions (author)2013-07-07

Nice job, but I'm confused. :3 I thought the rods and connectors contest said not to use legos. Although, this type of lego bricks is more rods-and-connectorish if anything, but still, someone needs to make an official list of all the things that can be used.

I really like the robot, it looks very clean and I'm sure it functions great! Voted for you in both contests! :D

Hi, I thought the same to, but I believe rods and connectors also include things like LEGO technic and NXT as they r not bricks or beams!:D

Yeah, I think I've figured it out now. Thanks! You're welcome for voting; you deserve it. I see you've enter more contests and I'll vote for this in them, too. :D

thanks:D

You're welcome. :D

also ty for voting:D

hunter999 (author)2013-07-05

Looks great!

hunter999 (author)hunter9992013-07-05

Oh man, was going to build this but I don't have hands :P

nerfrocketeer (author)hunter9992013-07-05

Man, you have it good. At least YOU have a BRAIN! :P

NXTHacker (author)nerfrocketeer2013-07-06

8P

nerfrocketeer (author)NXTHacker2013-07-06

;)

hunter999 (author)nerfrocketeer2013-07-06

lol!

mikeasaurus (author)2013-07-04

Neat. This should go in the Rods & Connectors Contest instead of Building Blocks.

wait that contest is for knex and lego....... time to break out my legos and make a gun

but no its for lego technic only probably

right, that's what I make guns out of

haha cool

thanks, I've made a few before

NXTHacker (author)mikeasaurus2013-07-04

also i think ive entered 4 contests ?i dont know but pls remove the RC one for me pls if i have entered 4 times.

NXTHacker (author)mikeasaurus2013-07-04

hi thank you for the advice i thought rods and connectors were just for knex haha thank you

JonnyBGood (author)2013-07-04

Does this actually shoot something? Regardless it looks great!

NXTHacker (author)JonnyBGood2013-07-04

hi ya i forgot to mention it shoots rubberbands lol, i will put that in description right now:D

JonnyBGood (author)NXTHacker2013-07-04

Okay Cool!

NXTHacker (author)JonnyBGood2013-07-04

haha ty:D

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