Instructables
http://www.youtube.com/watch?v=LJbFasz1eAg
2 months ago I saw this video for a knex crank shaft. the motor was not strong enough to launch the white rod. so I had a idea to use the motor to pull back the ram. this is what i came up with. its not very powerful but is a machine gun with no chain.

this is my first Instructable so be nice.

the instructions are done

please post any mods for a different motor.

update the gunbot 2.0 instructions are hear!!!! ya!!!

because not every body liked the mg and and i have many other things i could put on it the body is know going to be known as the bot and the mods determent the name so the first bot is gunbot.

mod can be posted on this forum http://www.instructables.com/forum/TL8ZZKSF7KZRMSD/

instructions for knife bot 2.0 hammerbot 1.0 and 2.0 drillbot 1.0 and pushbot 1.0 (working on name)are not going to happen!!!!
not many people commented that they made it or that they cared about these bots being made. i have moved on to a rubber band shooting robot that can fire 6 rubber bands at a time. i will post the instructions for the mod for the bot to make it fire rubber bands. the robot will have its own insructable. it will be able to turn, have hands that will move, and have two of my automatic rubber band shooters. it will be done with cyber knex motors(if i can find them on ebay but i haven't had much luck). all that comes to 8 motors. i hope it will work.

it worked... kind of. i did not use the cyber knex motors. i used the control-a-bot motor that i had laying around.

it is here. http://www.instructables.com/id/knex-robot!!!!!!!/
 
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Step 1: The gun part

G:\DCIM\100K3800\DCP_0716.JPG
G:\DCIM\100K3800\DCP_0715.JPG
easy to follow. look at notes.

this part is needed for all the bots

you should see the gunbot 2.0 mod even if you make a different bot.
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DJ Radio4 years ago
What's your current arsenal right now?
dsman195276 (author)  DJ Radio4 years ago
Ksayer, oodammo pistol(Working on it), TD's asault rifle thing he posted in the forum not to long ago, DD-27 3.0(Still not done...)
What do you think of my avatar?

Here's my arsenal:
Arsenal 003.JPG
dsman195276 (author)  DJ Radio4 years ago
Nice, pretty creative avatar.

Your arsenal looks good, just that little pistol(KillerK's?).

I forgot to mention that I have two of the 18 barrel things made...
It's not my avatar, it's from an album, "The blueprint 3".  Here's a single from the album: www.youtube.com/watch

The little block trigger pistol is actually Mepain's shotgun mod to Killerk's pistol, it shoots 4 yellow rods in one trigger pull.  It gets good ranges, around 40-45 feet.  The block trigger is very comfortable and easy to use.  Here's a link to a video: www.youtube.com/watch

Lol, the BR is 8 barrels, not 18.
dsman195276 (author)  DJ Radio4 years ago
The big 18 barrel turrents bacon made, i forgot i had two lieing around.
NYPA made the exact same spelling mistake you did.  Its "Turrets".
dsman195276 (author)  DJ Radio4 years ago
Sorry, I wrote that in a hurry! :-)
 
I made the 8 shot turrets.  I am gonna take apart the bottom rifle soon, its pissing me off.  Anyways, what do you think of the youtube videos?
By the way, hows the Knexsayer working for you?
Bartboy6 years ago
Do you have a job? I mean, you have like 500$ of Knex!
dsman195276 (author)  Bartboy6 years ago
and i easily have over 1000$ of knex with the prices at knex.com.

i estimate that each pieces is around .25$(some more some less but .25s a good guess). i have a estimated 13000 knex so 13,000 * .25 = 2,833.33$!
I estimate thenthat my knex(in pence) is worth about £2000 and about $3000.
then why didnt my 50.00 motorized madness ball machine that has 2100 pieces cost me over $500?!?!?!?!?!?!?!
cool!!!!!!!!!!!!!!!!!!!!!!
dsman195276 (author)  therandomperson6 years ago
lol.
your dad must be cool to have a cool job and to buy knex! lol
LOL
dsman195276 (author)  Bartboy6 years ago
actually, no. there really my dads knex but i am free to use them. he has collected them over the years with other building materials(like legos and fishertecniktoys)
(removed by author or community request)
mistake, dad's. that is to show ownership. would the sentence make sense if i wrote it like this actually, no. there really my dad knex but i am free to use them.
funny now im getting that motor thing and more knex and im gonna re bulid my crane bigger and better
builder9685 years ago
did you make those guns? the lower left crossbow is gorkem's.
Whaleman7 years ago
Grrr! That is almost the same as an Idea I had a while ago!
Me too but I didn't gear it.
yeah, but one of the problems is that it isn't really a machine gun, but more of a machine pusher
dsman195276 (author)  Whaleman7 years ago
that is what a real machine gun is . the ram pushes the primer and the primer ignites the gun poder witch shoots the bullet. with knex there is no primer and gun pouder so all that leaves is the ram pushing the bullet out of the berral. that is what every knex gun does
yes, but actuall machineguns are not motor-driven
What about miniguns?
Miniguns are just Gatling guns with a motor and a chain-feed.
yup, they are!
yes, technically motor driven, but is essentially a gatling gun that is belt fed instead of hopper fed, and has a motor instead of a crank. So basically what loosewire just said.
High Five!
Yeah!
dsman195276 (author)  Whaleman7 years ago
then explane how they work
1. THE FIRER PULLS BACK THE COCKING HANDLE TO COCK THE GUN. 2. HE PULLS THE TRIGGER BACK AND THE TRIGGER PUSHES THE SEAR DOWNWARDS. 3. THE SEAR RELEASES THE FIRING PIN AND THE SPRING BEHIND IT FORCES IT FORWARD. 4. THE FIRING HITS THE BULLET'S PRIMER ON THE SHELL CASING. 5. THE PRIMER INGNITES THE GUNPOWDER IN THE SHELL CASING. 6. THE HOT GAS FROM THE GUNPOWDER EXPANDS AND PROPELLS THE BULLET FORWARD . 7. THE BULLET BEGINS TO SPIN IN THE RIFLED BARREL AND THEN LEAVES THE BARREL THROUGH THE MUZZLE. 8. MEANWHILE THE BOLT IS FORCED BACKWARDS BY THE EXPANDING GASE. 9. THEN A BULLET IS PUSHED INTO THE FIRING CHAMBER AND AN ARM GRIPS THE RIM OF THE BULLET. 10. A SPRING PUSHES IT FORWARD AND IT LOCKS INTO THE SEAR. THIS CAUSES RECOIL. 11. THE GUN IS NOW READY TO BE FIRED ONCE AGAIN.
ok i did not know that but that would melt knex peaces so this is the closest you can get with a knex gun
This design is more like a Maxim machine gun.
ok fine
the trigger is pulled releasing the bolt, which hits a primer on a cartridge. The resulting expansion of gas propels the bullet out the barrel while simultaneously pushing the bolt back repeating the process until it overheats, runs out of bullets, or the trigger is no longer depressed which will stop the bolt from going forward again.
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