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extreme lego minigun
minigun chaingun vulcan gatling machine gun fully automatic working firing repeating extreme rubber band full auto
About this creation
this is a minigun/vulcan/chaingun

it is very mini... compared to the first gatling guns, so i guess things have improved.

it has 8 barrels, each with a capacity of about 13 woolys rubber bands, totaling to 104 rubber bands.

it can fire at a max of 12 bands per second, but this can be altered (see below)

the barrel wheel (the bit that spins) can be easily and quickly detached, which is very useful for loading and maintennance.

for those of you not familiar with lego mindstorms, the big white/grey block infront of the rear grip is an NXT brick, a programmable computer with inputs for sensors and outputs for motors. i used it because it allows me to have a readout of:

how many bands i have (+/- about 3)

the percentage of power being sent to the 2 motors, out how much the NX brick is able to sent. this can be changed by pressing the left and right buttons, but the default setting is 100%

the rpm of the motors and barrel wheel (they are connected to a ratio of 1:1)

the rate of fire in bps (bands per second) that i would have if i pulled the trigger (or the present rate of fire if i am)

the gun was based on pics of real miniguns that i found in a google image search, that explains the fore and rear grip designs.
the gun has a special safety, which is that you have to be holding the gun by the fore grip (and pulling it up) to engage the motors with the barrel wheel, to stop accidental firing (the main reason for this is that it takes ages to load again, which is about the ony downside). of course, i disabled this so that i could take some of the pictures.

like Sebs gun, this isnt exactly "tactical", but then what lego fully auto gun with a very big magasine isn't? (i dont know Seb personally, i just read his page on his minigun. if you havent seen it, just type in ultimate lego chaingun into the search box).

if i could, i would allow you to download the program for inspiration, but i dont know how.
i would also embed a video, but my parents wont let me have a youtube account.

i guess that there isnt much else to say, but if you have any reasonable questions, just post them in a comment and i should be able to answer them.

this is the mechainsm for the band release, you should be able to tell how it works.

the barrel wheel, detached

the rest of the gun

the mechanism for the fore grip safety (see above)(that red bit is a gearbox shifter, which will get plugged into a differential box, which has the right kind of hole at each end.

me firing some bands at a wall. you can just see one of them has jus been released and is about to fly off...

this is the NXT screen, showing (top to bottom): amount of bands left;motor power; barrel wheel rpm; rate of bps

this is the gate lock style quick release clips that hold the end of the barrel wheel to the bars that go by its side

the joystick style rear grip

this is a minigun that i built a few years ago, but it was pretty rubbish, as it only had 6 barels, and a max capacity of about 36 bands. if you want to see it, though, go to:

EDIT: a reply to hoang phong's question - i have put the program in the page that the link above takes you to, just download the bit that says "moc pages - the program" or something like that.(dated 14/08/08)


 I like it 
  April 14, 2015
Can you please send me the instructions to building the gun it looks really amazing to, great Job. send it to
 I like it 
  January 21, 2014
i love lego weapons i would really appreciate it if you could send me the instructions and program to thank you so much
 I like it 
  June 20, 2012
Theres no VIDEO!!!!!
 I like it 
  May 30, 2012
Very amazing gun. I would appreciate it if you could send me the program and instructions to Thanks.
 I like it 
  May 5, 2012
It is one of the best lego guns I have ever seen. I want that please send me the building instructions at "".
 I like it 
  February 18, 2011
 I like it 
  December 14, 2010
Jack,please send me LDD instruction on PLEASE!!!!!
 I like it 
  April 14, 2010
Absolutely SICK, Dude. You should get a friend with You Tube to let you post a video, and put links here, I'd love to watch this beast in action. Also, how many welts have you raised on unfortunate victims at 12 RBS? I gotta know. -Huss Q.
 I like it 
  November 25, 2009
too awsome! jack streat you have good guns in lkmachines too(btw i like them all)t:jeremu5
 I like it 
  June 6, 2009
WOW. This is epically amazing. Please check out my Crossbow which is cool as well.
 I like it 
  June 1, 2009
how do you think of those mechenisms?
 I like it 
  January 3, 2009
erm, wow, epic, awesome, that realy is amazing
 I like it 
  November 10, 2008
Hey Jack, u don't know that RBGs are already last season? :D Check out my Paper wasp gun and pls see if there is anything you can help.
 I made it 
  October 12, 2008
Soren, have a look at the minigun on my NXTlog page (teenager101). i put an LDD file of one of the mechanisms on it, hope you can figure it out from there
 I like it 
  October 4, 2008
Best minigun I have ever seen, I am building or trying to build a minigun from my NXT, But I need help with my rubber band release systume, Can you explane how your release systume works, If I post it and stuff I'll say you helped, My email is but if you do not want to help I understand
 I like it 
  August 23, 2008
well,i give you five :D :D :D :D :D for the mechanism. four :D :D :D :D for the body. please review my guns. have to make a full auto tommygun.
 I like it 
  August 10, 2008
i can see that you have 2 touch sensors? and post the program on NXT log, then post the link here! I'm building a rubber band minigun with nxt too and love your program! oh, and check out my guns!
By Jack Streat
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Added August 10, 2008

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