H.S.P.L (High Speed Projectile Launcher) PROTOTYPE Knex




About: (\_/) <) please copy my bunny and paste him to your about me section. we will help him take over the world. copy the bunny and spred the word (this bunny is the jamalam's bunny.)

This is my H.S.P.L it is made with knex and lego mindstorms it is a form of minigun and fires 8 round in .5-1.5 seconds the lego isn't needed but makes it easier. SHOULD I POST IT!!!!

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Be the First to Share


    • CNC Contest

      CNC Contest
    • Teacher Contest

      Teacher Contest
    • Maps Challenge

      Maps Challenge

    30 Discussions


    10 years ago on Introduction

    hey, you can use a dril, just treat the rod like a bit and trhere you go, a VERY fast gatling gun. probobly shoot all shots in 2 seconds though

    1 reply

    Try 1/4 second. The motor in this slideshow can drive that to fire all the shots in under a second and a half. That type of motor can also move about ten pounds rolling (tried at camp, made a freaking tank with three NXT kits) at a decent speed.


    10 years ago on Introduction

    ive just thought of the best way to shoot someone in a knex war which is... get a gattling gun(a knex one well duh), make as many i am canadains war bombs as the amount of barrels in the gattling gun atach each bomb to a rod and load them in to the barrel and shoot away (that would be cool and i am doing it

    2 replies

    Not particularly intelligent unless the objective of the game is to injure the other players as much as possible.

    Hey, i'm stickin' up for ya! Lolz ... I FINISHED MY MINIGUN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! shame it doesn't fire nothin' though.

    Incoming dude... "BEEP - Upload complete" And, this is a portable full size model. four barells, with 2 supports, on top + below. It uses the cyber k'nex dual motar, cos my single is 'stuffed full of battery acid' shall we say... lol. It gets pretty fast, once it gets going. i rlly nead some sorta RBG system on this to make it shoot stuff...


    mmm... but... if i changes the blue rods on the ends to green rod + orange connector + white rod, it fits perfectly... if i did that i could plate it... i'll see what i can do :-D