Introduction: Amazing Knex Tank, VERY Simple!!

Picture of Amazing Knex Tank, VERY Simple!!

This is a simple multi terrain very strong knex tank. It uses only 79 peices. 34 of them are chain links. This is my first instructable so go easy on me. Any comments or tips to make it more efficient are welcome.

Step 1: Gather Your Peices

Picture of Gather Your Peices

Here is what you need.

Step 2: Build the Top of the Tank

Picture of Build the Top of the Tank

This step uses 12 pieces

Step 3: Building the Part Where the Motor Connects

Picture of Building the Part Where the Motor Connects

Build this step using 1 green rod, 2 of the gears, 2 yellow connectors, the motor, 4 of the wierd black pieces, 2 of the wierd gray connectors, 2 cream colored thingies, and 1 gray rod (stuck into the top of the motor). 15 total pieces.

Step 4: Building the Front Wheels

Picture of Building the Front Wheels

This step uses 2 wierd gray connectors, 1 brown connector, 1 green rod, 2 yellow connectors, 2 gears, and 2 wierd black things. That is 10 pieces.

Step 5: Connect the Back and Front Wheels With Two Yellow Rods

Picture of Connect the Back and Front Wheels With Two Yellow Rods

That is 2 pieces for you people who hate math. :)

Step 6: Put a Gray Rod on Top of Each Yellow Connector

Picture of Put a Gray Rod on Top of Each Yellow Connector

(that is 4 pieces total)

Step 7: Connect the Gray Rod in the Motor With the Brown Connector on the Front Wheels

Picture of Connect the Gray Rod in the Motor With the Brown Connector on the Front Wheels

Use a gray rod and a brown connector as shown.

Step 8: Put 17 Chain Links on Ech Set of Wheels and Put the Top On.

Picture of Put 17 Chain Links on Ech Set of Wheels and Put the Top On.

The top goes on the 4 gray rods. Also connect the battery case with the back blue rod on the top.

Step 9: Add the Gun Holder on the Front Blue Rod.

Picture of Add the Gun Holder on the Front Blue Rod.

Use a wierd black thing and a gray connector.

Step 10: Make the Gun

Picture of Make the Gun

Use a long gray rod, a blue rod, and a brown connector. That is three pieces.

Step 11: Connect the Gun to the Gun Holder

Picture of Connect the Gun to the Gun Holder

Slip the gun into the gun holder as shown.

Step 12: Here Is How It Runs.

It can carry up to 10.5 pounds!!


hunter999 (author)2011-03-05

this picture is blury

hunter999 (author)hunter9992011-03-05

well i mean step 3 is blury

hunter999 (author)hunter9992011-03-05

well i mean step 2 is blury

the_burrito_master (author)2008-05-06

I wouldn't say amazing but it's ok

Yeah, maybe that was an overstatement. (lol)

try building one more like this...

that is cool


are there instructions?

no but sumdude was working on them I don't think he finished yet though.

now he did... but not when I posted that.

ok thanks

post it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hiyadudez (author)2009-05-26

The 'weird cream coloured peices' are axel clips.

mgbgt (author)2009-03-26

how does it turn?

killer towels (author)2008-05-11


he improved on your design, and made it easier to build for many of us. and, it looks/works better.

codongolev (author)killer towels2008-07-04

cry me a river, build a bridge, and GET OVER IT!!!!

Um...... Sorry??

mettaurlover (author)2008-08-22

a little piece terminology: those "cream colored things" are called tan connectors, and those "wierd black things" are called Y-connectors. just trying to help a little.

Mad Cat (author)2008-05-02

I built a K'nex excavator that had 3000 pieces, used six motors and had enough power to lift up 10 tyres. I will NOT post instructions because hardly anyone on this site has enough pieces. And plus, it was taken apart like 2 years ago. About THIS tank, well you could have put more effort into it, and you made the fatal mistake of writing 'This is my first Instructable, so go easy on me'. It doesn't matter how many times you posted a creation. Some guy (I forgot his name) posted 5 guns and they were all rubbish. It doesn't matter how many things you post, it all depends on the actual thing that you made. For example, hack124x768 posted an excellent gun, but incomplete instructions. Advanced builders managed to copy it. On a more positive note, it's great that you decided to share your creation, and it's something that's not commonly posted.

therandomperson (author)Mad Cat2008-08-01

ahem i have enough pieces

Mad Cat (author)therandomperson2008-08-01

"And plus, it was taken apart like 2 years ago."

therandomperson (author)Mad Cat2008-08-02

:( make it back :D

that excavator sounds cool do you mean knex tires or real tires because it couldn't lift real tires. my little brother would love that but I don't want to build something that big for him

K'nex tires of cours! The biggest ones they sell, so it's pretty decent for a excavator. It is REALLY complex to make. If I did post instructions, it would take like 3 weeks to build it.

ok just making sure. yeah I bet it is.

Knexpertevan (author)Mad Cat2008-05-03

Yeah, I was trying to make something beside a gun, I love guns but they do get old. That knex excavator of yours sounds pretty impressive. If you know of any cool knex things on this site that are NOT guns, please tell me!!

Mad Cat (author)Knexpertevan2008-05-03


instructable doggie (author)2008-06-20

does it fire????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Knexpertkyle (author)2008-05-06

what do you mean! I live less then a quarter mile a way from your house

I know, that is why I said we are neighbors.

Knexpertkyle (author)2008-05-06

looks kinda small

I flagged your message as not nice HA HA!! (ps this guy who I wrote this to shares a driveway with me, we are neighbors)

I_am_Canadian (author)2008-05-02

Not bad, but not all that fantastic either. I might suggest adding a bit more to your next instructable.

It was kind of meant as a basic model for people to go off of and modify.

Yes, But most people who wanted to make a tank could have come up with this.

arrow shot (author)2008-05-02

very c00l, i might add some simple turrets on the top

Knexpertevan (author)arrow shot2008-05-03

That would be cool!

ojochris (author)2008-05-02

Nice, It looks relatively simple, easy to mod, functional, and Creative, nice!

Knexpertevan (author)ojochris2008-05-02


ojochris (author)Knexpertevan2008-05-02

Your welcome, but I have to agree with Canadian, Add some stuff to it, then add it to the instructable

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