Introduction: Regular Rubberband Knex Bow

Picture of Regular Rubberband Knex Bow

I said in my group that I will post this, so here it is.

I was fiddling around with my crossbow and came to this.
This is a normal bow that uses a chain of thick rubberbands, so it needed to be very sturdy and after i made it very sturdy, I believe it will even survive if you let it fall down the stairs.

I found that it was near impossible to let it shoot grey knex rods, so I chose for wooden or plastic arrows.

The camera works better in daylight :D
And is even better then on the pictures i posted :P

Step 1: Build the Inner Frame

Picture of Build the Inner Frame

You might be very familiar with this part if you made my crossbow.

Pic 1: Bottom halves of inner frame (dont forget to stick on the green rods :P)
Pic 2: Top halves of inner frame
Pic 3: Combined halves of inner frame

Step 2: Combining Inner Frame

Picture of Combining Inner Frame

This step can be very hard, you can make this however you want, as long it sturdy.

If you try mine then here are some pictures

Step 3: Making Bow Sturdier

Picture of Making Bow Sturdier

pic 1: Just add the rods as shown in the pictures(Please use Yellow rods instead of the Red rods!)
pic 2:
pic 3: Add this to both sides
pic 4: Add all these damn pieces on the other side aswell, after that connect the green rods first, then see next pic
pic 5: Add the white rods including the grey connectors
pic 6: This is how it should look like by now
pic 7: You want 8 of those things
pic 8: Add them to the grey connectors on the front
pic 9: Put them on the back aswell
pic 10: Make these
pic 11: Make 4 of those
pic 12: Connect it together
pic 13: Take the yellow rods with wheels off and put the very thick rubberbands around them
pic 14: Stick them back in place

Step 4: Loading and Launching

Picture of Loading and Launching

Slide your arrows through the hole in the middle and then against the rubberband and pull it back.

Do not fire at siblings :P
And do not fire at living things either, cause if you use proper arrows you may injure them XD


dragon#1 (author)2011-06-17

s-i-c-k dude

zap89 (author)2008-05-17


Shadowpom (author)zap892010-08-16

a compound bow is the same size as this and a recurve/longbow would be alot larger

Trogador (author)zap892008-08-08

He meant regular as compared to his crossbow.

something94 (author)2009-08-12

do i need all those light grey connectors cas i only have enough to cover half of the lower arm

Wicky (author)something942009-08-12

You can use red or green connectors instead.

PS: What a horrible camera I used, I am surprised you can build it =d

knexfreak95 (author)2009-08-10

check my bow out

Dirtyboyy (author)2009-05-10

hor far does it shoot ?

Wicky (author)Dirtyboyy2009-05-10

Nothing spectacular, guess about 70 feet? Not my greatest weapon =/

Raz1r Knex Bull3t (author)Wicky2009-07-10

if you have watched lord of the rings try making a elven bow out of knex or just make legolas's bow out of knex

frozendragon (author)2009-03-09

nice i have to go outside to get some arrows lol

F I S H (author)2008-08-26

its a bit hard to build with those pics.. =\

PieMan1357 (author)2008-05-24

I thought of a way to make the arrows. super glue 2 gray rods together and sharpen the front of it. Just an idea.

Wicky (author)PieMan13572008-05-24

Never thought of that...I don't think the super glue will hold the arrow in one piece from what I have seen Knex bends alot when fired upon something using great force. I never have any super glue though :P

magician847 (author)2008-05-21

How do u make knex arrows for this bow? i tried but they allways break

Wicky (author)magician8472008-05-21

Like it says on the intro, it does not fire knex, but you could try a long piece of thin round wood. I found one with a sharp point on it :P

fret315 (author)2008-04-24

this is so cool I might make it today sometime

knexguru (author)2008-04-22

what does it shoot

pls (author)2008-04-16

looks like it would also be affective just flailing it around at someone.

Wicky (author)pls2008-04-16

It could be, but you can't move it quick since it weights alot lol Hmmz, that would it a ranged AND melee weapon :P Just look at this picture(it must be in this instructable somewhere), this would be even more effective :o(Just push all those red rods up) :D

pls (author)Wicky2008-04-16

and sharpen them:D

Wicky (author)pls2008-04-16

I_am_Canadian (author)2008-04-05

Nice! im building.

!revenge! (author)2008-03-19

looks complicated

fret315 (author)2008-02-29

thats kinda cool

oldsmobilefreak (author)2008-01-18

what should i use instead of wooden or plastic arrows

Danny A (author)2007-10-22

I moded it and it is so strong you can drop it from 3 meters and it doesn't break. it used up all of my Knex. I don't even have any more green connectors.

snipeyouout (author)2007-08-18

oh ok

do you hav any ideas for the arrows for the bow?

snipeyouout (author)2007-08-14

try doubling or tripling up the arrows by adding a orange conector

Wicky (author)snipeyouout2007-08-16

no you cant....if you do, they either snap, or just get stuck. i tried this many times, but it does not work! (author)2007-07-16

maybe ill add another half a ft to it! (author)2007-07-16

im making a lego bow needs work though cuz its like 1 ft long and shoots 2 foot arrows lol!

sportychelseafan (author)2007-06-29

it broke

pates1 (author)sportychelseafan2007-07-07


sportychelseafan (author)pates12007-07-08


yeah I know lol it broke after we put the rubber bands on

Wicky (author)sportychelseafan2007-06-29

how? Did you throw it out of the window? Just kidding, what broke?

sportychelseafan (author)Wicky2007-06-29

i was puttingon the rubvber band i done it and i dropped form not that high and the arm come off

gibbo_gunner2496 (author)Wicky2007-06-29

ya know its a cool bow n all but if ya seen van helsing you should try and make an auto bow its a wel nice bow

Wicky (author)gibbo_gunner24962007-06-29

Yes i saw that movie, pfff that must be impossible to make, 2 and 3 shot bows will work, but i first need a true trigger, that can hold ALOT of tension

Pat Sowers (author)2007-06-28

try to make it a compound bow

Wicky (author)Pat Sowers2007-06-28

i might make a different bow, that is thinner but more practical. and this already looks a bit like a compound bow, doesn't it?

Pat Sowers (author)Wicky2007-06-28

Ya it does, but if it were possible it would be cool to make a functioning compound bow. But I dont care this bow is firkin awesome.

Pat Sowers (author)Pat Sowers2007-06-28

this thing looks so cool i wish i had that many parts

mmzdaniel (author)2007-06-28

but im not sure that i can build it, not enough pieces =P

GreekGuy (author)2007-06-27

-looks insanely cool, but u can always make a simple bow. Nice instructable though!

Wicky (author)GreekGuy2007-06-27

Try this, it is pretty effective for its size XD Make a tiny 5 piece bow: Pieces: 2 black/green rods 2 dark grey connectors 1 green connector Add all together to get a bow shaped thing and cut the rubberband once. Then add it to the dark grey connectors Arrow: Pieces: 1 red connector 1 grey rod

say88got (author)2007-06-27

nice stlyel awsome

Wicky (author)say88got2007-06-27

thanks :P lol when i looked how long ago you posted your comment it said -4 minutes XD

About This Instructable




Bio: I seem to like building crossbow shaped objects.
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