Knex Rubberband Repeater That Uses Gears

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Introduction: Knex Rubberband Repeater That Uses Gears

finally, i have made a rubberband repeater that uses GEARS! it has a massive rubber band capacity on the gear. it also has a decent range.

Step 1: Frame

this is the frame. make it correct, or FACE THE CONSEQUENCE of it exploding on you. naw, i kid.

Step 2: Handle

easy, right?

Step 3: Gears\trigger

the main part

Step 4: Assembly

wow, that was fast

Step 5: Supports

helps support the rubberbands. kinda bad pics sorry

Step 6: Ah, the Trigger

the trigger goes on the 45 degree angle on the snowflake. make sure that the green rod in the back of the trigger is one space apart and the one in front is 2 spaces apart. attach the rubber bands on the trigger anywhere you please, i dont care.

Step 7: Loading and Firing

load the rubberbands on the 2 yellow connectors and put it anywhere on the gear. press the trigger and it should click and move up one space. keep pressing the trigger until it fires.

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66 Comments

Can Anyone make a version that doesn't use these gears? I dont have these types

2 replies

you can use the ones with prongs on them,if your shear the prongs off then it works just like ones with out prongs.

Very good idea it functions without error. But you may want to build a better handle and if you make the barrel longer it will shoot farther. VERY GOOD!

Epic mods for this: Here! Its a slide show, but you can probably do it.

Dude,I turned it into an m16.

This beats my gear RBG. I couldn't think of any way to advance a red gear 1 tooth at a time, but you did it. I do suggest making the barrel longer though. Mine is about 2 times longer, which gets you a lot more range.

2 replies

I built it, and it's a shame it's so unreliable. The tension of the rubberbands will never be the same on all of them, some some will fly of on different angles then others, which makes it shoot either 0, 1, or 2 rubberbands per trigger pull. I could have to do with my improvised red gear, but I don't think so.

mine to, some even shoot backwards.but mine also has an improvised red gear ,so maybe that is the prob.

good range

I only have one big gear, but I tried made a version that used two little gears. Didn't work, the rubberbands all flew off at one time. :\

holy crap!!! i tried to mod the gun by making it longer... and i got a bit carried away i swapped the 4 white rods on the barrel for grey rods and when i loaded it up with rubber bands, the hole thing just blew up!!! i have welts and dents in my wall to prove it!! other then that i think its a great gun, i like how its semi auto

2 replies

yeah, gotta use a series of connectors for the barrel, i learned that too. though i didn't get dents in my walls x)

yah and im holding you responsible for the dents and the medical charges!!! just kidding. that would be mean. love the gun tho!

super awesome ninja gun, one thing tho, how do you make and put on the trigger?

1.small
2.fun
3.compact
4.Personly i love it!!! Good Work XD

Really smart idea.

ok so I made this gun, but since I'm lacking a few key parts (like the proper type of gears), I'm modifying a yellow gear to get it to work well (the rubber bands get caught on the prongs of the yellow gears I'm using, so I'm shearing off all of the prongs on the gear contacted by the bands). Otherwise, it works pretty well .