Introduction: Knex Blunderbuss/Ping-pong Ball Shooter

Picture of Knex Blunderbuss/Ping-pong Ball Shooter

A pretty easy-to-build blunderbuss/ping-pong ball shooter with a new type of trigger-
my first instructable, comment what you think

Step 1: Build the Barrel

Picture of Build the Barrel

The barrel has two rubber bands on the white pieces, across the top and to the other side. You'll see what these are for later.

Step 2: Build the Handle

Picture of Build the Handle

This is a very simple handle. You can construct your own, the only parts that are really important are the red connectors on top and the hinges on the bottom.

Step 3: Build the Trigger

Picture of Build the Trigger

The trigger uses the track pieces from the roller coaster sets.
They also come in most Knex tubs.

Step 4: The Firing Mechanism

Picture of The Firing Mechanism

The mechanism that fires whatever you put in the barrel.
You don't need anything to hold the gear on, it should be snug.

Step 5: Attaching the Barrel to the Firing Mechanism

Picture of Attaching the Barrel to the Firing Mechanism

Make sure the barrel has the side without the white piece on top. Then the green rods attach to the white connector in front.

Step 6: Putting It All Together

Picture of Putting It All Together

Taking off one of the red connectors makes it easier to attach the trigger.

Step 7: Bracing the Barrel

Picture of Bracing the Barrel

Just a little extra support.

Step 8: Finishing the Barrel

Picture of Finishing the Barrel

This step is NOT NECESSARY, it simply helps the ammo you're shooting go straighter. Make sure the tube is inside all four red connectors in the barrel.

Step 9: Cocking and Firing

Picture of Cocking and Firing

Just pull the gray connector on the firing rod back, clip the trigger over the gray connector, load the ping-pong ball, and pull the trigger back to FIRE!

This can shoot almost anytthing you put in the barrel.

WARNING: The gear on the end of the firing rod can come off sometimes. Don't clip something on the end of the rod to keep it from flying off, because then the rod is not flat.


Snosageman99 (author)2011-10-22

Dude, way too fuzzy

k-n-e-x(leaved ibls) (author)2011-01-04

you have weird knex colors!

It's actually normal.

bleu crosties???

Meh, I have all of those. And a lot.

Well I guess I should have taken into account that other people wouldn't have as many of those parts that I do.

Sorry for the confusion.

yellow purple connectors???

l)eM()N (author)2008-04-10

Should i post my ping pong ball gun? it has magazine

TigerNod (author)l)eM()N2010-11-15

I'd say, go ahead. It'd be much better then your "mini knex gun" after all.

TigerNod (author)2010-11-14

Unique idea, even though it is a bit unusual. But at least it is original. I'll build one soon.

dynno97 (author)2009-01-24

its okay, im not saying its bad, just needs a little work

pls (author)2008-10-23

i like the idea

SeMi_AuToMaTic (author)2008-04-29

cool idea, bad camera, needs a trigger. +1

mitchell931993 (author)2008-04-24

yeah-and how far does this shoot

chacho5 (author)2008-02-09

what the heck, man, take better pictures cause I really need to build somthin like this and i cant see squat!

3 and 2 (author)chacho52008-02-10

Sorry, I know the pictures are blurry. I'll try to get better pics up ASAP, if anyone has help on taking these with my digital camera it would be much appreciated

1up (author)3 and 22008-02-11

Most digital cameras have a Macro feature. This setting is usually labeled with a flower.

Mahibak (author)2008-01-01

I can't build this, your pictures are way too blurry.

BuffaloNickel (author)2007-12-31

i cant see anythinggggggggggggggggggg!!!!!!!! AHHHHHHHHHHHH!!!!!!!!!!!!!!!!!! plz get better pics =] plz??????

nerfer192 (author)2007-11-23

can we pleaz rezolve this cuz i getting tired of holding down the space key.

Vynash (author)2007-07-30

im gonna make this right now

knexguy (author)2007-07-29

that thing can fire golf balls!

bedbugg2 (author)2007-07-27

ahh ty

bedbugg2 (author)2007-07-25

huh am i colourblind? arent those clip connectors meant to be purple or grey?

3 and 2 (author)bedbugg22007-07-26

yeah, they usually are. Mine came in the 425+100 Knex tub, and the pieces are weird colors.

crestind (author)2007-07-25

Cool. Those are funky pieces 0.o

why the big space?

why'd you reply to me? i put the space by accident and acctually, my name is Daniel... :D

i meant to reply to danny but i think there is something wrong with the reply notification sysytem

umm.. ok

Dejectory (author)2007-07-24

looks fun

killuhmike99 (author)2007-07-24

cool this is realy grate its cheaper than those ping pong ball shooters online

bedbugg2 (author)2007-07-24

this looks fun

haha danny! you really are crazy arent you :D


3 and 2 (author)2007-07-24

sorry for the pictures, if you have any tips to take them better i'd like to know

Neo1 (author)2007-07-24

blurry pictures

Easy Button (author)2007-07-24

cool first comment

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