Knex/marble Launcher





Introduction: Knex/marble Launcher

This is very easy to build and shoots a long distance. It is more powerful than some guns i have built.

Step 1: Frame

1. refere to the picture and build it.

Step 2: Whatever Its Called

1. cut out a 2 in. by 2 in. peice of cloth.
2. make 2 holes in the corners but dont make them to close so it rips when you put the rubber bands on.
3. make 2 holes in the middle of the cloth( all holes are shown where to cut them on the picture, the holes are repreasented by gray dots.
4. take a peice of string and loop it threw the 2 holes and tie a grey connector to the string and connect another grey peice to the first grey peice.
5. loop a rubber band in each corner as the picture shows.
6. connect it to the frame like in picture.

Step 3: Firing System

1. on a red rod snap on 2 red connectorin the in the center slot in the center of the rod and seperate them with 2 blue spacers.
2. connect it to the frame
3. connect a grey connector to a white rod(this is used to fire the launcher.

Step 4: How to Fire It

1. pull the grey connector until it is between the red connectors lined up with the holes out the piece you made earleir and stick it throught the holes.
2. pull the rod with the the grey connector out and it should fire.

(there should be a video attached)



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    13 Discussions


    11 years ago

    GARRGGGHHH, Can't there be a filter that removes KNEX projects from the "Explore New Projects by Date" button? Don't get me wrong you KNEX people, hey have fun, but man, it seems like half of the instructables each week are for some knex toy or another. Maybe start up or something. Fer realz! But I still love you peeps.

    1 reply

    www.knextructables is a great idea i will look into ittnx for the idea


    11 years ago

    how come nowone has seen this great invention that has been invented it rocks

    4 replies

    i built it and it's pretty good i need smaller rubberbands so there is more tension

    As soon as ive found some strong cloth i will

    Sweet, it reminds me of a game my friend had a while back, the one where u wet a tissue and try to put marbles on it with out breaking it. Looking back it seems kinda retarded now. But your gun thing* is AWESOME!!!

    *dont know what to call it, its not a gun, but, its not really anything else I kno of

    2 replies

    hmm, come to think of it, ya, pretty much

    this thing is awsome!! i willl try to build it!! i like the new firing thing. its like a quick release.

    1 reply

    ive used this release system before i became a member on other guns that i will try to post