Introduction: Knex Battle Bots

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 https://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. https://www.instructables.com/id/knex-robot!!!!!!!/

Step 1: The Gun Part

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.

Step 2: Hopper and Barrel

most important thing on here. it had to be able to drop the green rod in all by itself with out a rubberband because that would put to much stress on the motor(it is already stressed because it has to pull the ram back and move the tank). the instructions are almost step by step adding one peace at a time. some times it will jam but don't touch it the hopper shakes every time the tank fires.

Step 3: Put It All Together

easy step

Step 4: Loading and Firing

look at the pictures and i added a video.

the first video is part one loading.

the second video is firing




Step 5: My Guns

all my guns... except ipods killers sniper(taking apart) gorkems sniper(trying to build) and my moded killerk magnum(safety reasons

does any one want me to post my moded cylone?

Step 6: Gunbot Changes for All Bots

there are still some bugs to work out but it is more powerful and is beter looking. it is more powerful because it only has to turn the gears and not always the chain so when normaly the wheel would luck up the chane stops moving puting less stress on the motor.

first build all of the origirnal except the two grey rods that have the wheels on them

this is a good mod for all bots

Step 7: Knifebot 1.0

it is stronger and faster then gunbot but it has a knife insetad of a berral and ram

Comments

author
DJ Radio (author)2009-11-25

What's your current arsenal right now?

author
dsman195276 (author)DJ Radio2009-11-25

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...)

author
DJ Radio (author)dsman1952762009-11-25

What do you think of my avatar?

Here's my arsenal:

Arsenal 003.JPG
author
dsman195276 (author)DJ Radio2009-11-25

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...

author
DJ Radio (author)dsman1952762009-11-25

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.

author
dsman195276 (author)DJ Radio2009-11-27

The big 18 barrel turrents bacon made, i forgot i had two lieing around.

author
DJ Radio (author)dsman1952762009-11-29

NYPA made the exact same spelling mistake you did.  Its "Turrets".

author
dsman195276 (author)DJ Radio2009-11-30
Sorry, I wrote that in a hurry! :-)
 
author
DJ Radio (author)dsman1952762009-11-27

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?

author
DJ Radio (author)dsman1952762009-11-25

By the way, hows the Knexsayer working for you?

author
Bartboy (author)2008-05-31

Do you have a job? I mean, you have like 500$ of Knex!

author
dsman195276 (author)Bartboy2008-05-31

and i easily have over 1000$ of knex with the prices at knex.com.

i estimate that each pieces is around .25$(some more some less but .25s a good guess). i have a estimated 13000 knex so 13,000 * .25 = 2,833.33$!

author

I estimate thenthat my knex(in pence) is worth about £2000 and about $3000.

author
builder968 (author)dsman1952762008-11-29

then why didnt my 50.00 motorized madness ball machine that has 2100 pieces cost me over $500?!?!?!?!?!?!?!

author

cool!!!!!!!!!!!!!!!!!!!!!!

author

lol.

author

your dad must be cool to have a cool job and to buy knex! lol

author
Bartboy (author)dsman1952762008-05-31

LOL

author
dsman195276 (author)Bartboy2008-05-31

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)

author
knexsuperbuilderfreak (author)2009-06-26

funny now im getting that motor thing and more knex and im gonna re bulid my crane bigger and better

author
builder968 (author)2008-11-29

did you make those guns? the lower left crossbow is gorkem's.

author
Whaleman (author)2007-10-09

Grrr! That is almost the same as an Idea I had a while ago!

author

Me too but I didn't gear it.

author

yeah, but one of the problems is that it isn't really a machine gun, but more of a machine pusher

author
dsman195276 (author)Whaleman2007-10-11

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

author
Whaleman (author)dsman1952762007-10-11

yes, but actuall machineguns are not motor-driven

author
Mad Cat (author)Whaleman2007-10-12

What about miniguns?

author

Miniguns are just Gatling guns with a motor and a chain-feed.

author

yup, they are!

author
Whaleman (author)Mad Cat2007-10-12

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.

author

High Five!

author
dsman195276 (author)Whaleman2007-10-12

then explane how they work

author

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.

author

ok i did not know that but that would melt knex peaces so this is the closest you can get with a knex gun

author

This design is more like a Maxim machine gun.

author
Whaleman (author)dsman1952762007-10-12

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.

author
dsman195276 (author)2008-09-03

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.

author
codongolev (author)2008-08-31

finally! someone else has this set! it's awesome!

author
sampson643 (author)2008-06-23

What is the point on these??

author
dsman195276 (author)sampson6432008-06-23

this is a tank with a machine gun mounted on it. the machine gun also does not use the bullet-per-chain link design, but a rack and pinion design.

author
dsman195276 (author)2008-04-28

yes, yes i am!

author
dsman195276 (author)2008-04-26

edit, i am going to fix some spelling mistakes i have made.

author
Mintyhippo (author)2007-10-17

cool idea

author
Kaiven (author)2007-10-09

i had this idea before after looking at a car book and learning about cams... I see you made the quad blaster.... PLEASE post it. I have seen the video, but i can't make it...

author
Kaiven (author)dsman1952762007-10-15

thank you!

author
dsman195276 (author)Kaiven2007-10-15

your wellcome

author
Dutchj (author)Kaiven2007-10-09

I posted more then enough pictures for anyone to be able to build it in the forum topic, check over there.

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Bio: Just your average K'Nexer/Programer/Nintendo DS fanatic. Any questions you would like to ask about any of the above? Send me a PM ... More »
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