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Revolutionary Knex Gun Competition 1 Answered

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The Challenge: Make a firing knex weapon without elastic bands. Weapons that use elastics are allowed to be entered, but each instance of elastic use will reduce its chances of winning. A weapon that was created before the beginning of the contest will also decrease its chances of winning.

Rules: You may enter as many knex weapons as you like.

Criteria (in order of importance)
-Performance
-Innovation
-Appearance

Deadline: May 1st.

Judging: I'll pick the winner.

Rewards: The winner will receive my 5 star rating on their slideshow or instructable. The real prize, however, is the satisfaction of winning. The winning weapon will be announced in a forum shortly after May 1st.

Entering The Contest: Post a link on this forum to enter.

I will be posting a new contest near the beginning of each month until further notice.

48 Replies

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MotaBoi (author)2010-04-24

 Does it have to be a gun?

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Oblivitus (author)MotaBoi2010-04-24

Nope, it can be any knex weapon.

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MotaBoi (author)Oblivitus2010-04-24

 actually, probably not because im working on my f2000

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MotaBoi (author)Oblivitus2010-04-24

 cool, i'll make a trebuchet or catapult.

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webby427 (author)2010-04-09

I'm in

*semi-auto
*only uses a band on the mag
*ok looks
*comfy handle (for small hands)
*fires gray connectors/blue clips
*big 16 shot mag
*removable mag
*small
*can fit in an avarage pocket
*piece efficient - 41 pieces
*quite relyable
*very strong - 5 layers
*ideal sidearm
*true trigger

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Oblivitus (author)webby4272010-04-17

Did you delete your slideshow? You were in first place in my competition.

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webby427 (author)webby4272010-04-11
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webby427 (author)cj814992010-04-09

I will if enough people ask on the slideshow

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cj81499 (author)webby4272010-04-09
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Hiyadudez (author)webby4272010-04-09

how do you know its reliable?

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webby427 (author)Hiyadudez2010-04-09

i dont but im estimatingbecause the problem i noticed with the v1 was thatthe bullets could get jammed because it was so tight. so I sacrificed accuracy for relyability

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Hiyadudez (author)2010-04-11

I made this a few days ago, but I forgot to post it.

If basically a normal gun rain, with a 'car' on the rail. Attached to the 'car' is string that runs to the front of the gun and over some pulleys. Attached to the other end of the string is a big weight/counterweight. When released, it pulls the car forward (the bullet is infront of the car) and send the bullet flying out of the barrel, but the car stays in.

It shoots a blue rod 10-15 feet.

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Oblivitus (author)Hiyadudez2010-04-12

Nice! It's really original. Maybe you can try attaching something that's really heavy like dumbbells or sandbags and fire it by mounting it up high so that the weights still have space to drop. That would get much more range and greatly increase your chances of winning the competition.

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Hiyadudez (author)Oblivitus2010-04-12

Thanks, but I've already broken it up and I'm working on a new project.

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MegaMetal8 (author)2010-04-12

please go on my slideshow go on my player then click on it
(you'll probably know that but hey)

this link might work
this Slideshow

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MegaMetal8 (author)MegaMetal82010-04-12

yay the link above works  (^^^^)
please have a look at my entrant and
hope i win =)

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MegaMetal8 (author)2010-04-12

im in

please go on my slideshow and have a look at it

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KnexFreek (author)2010-04-10

 Im going to make a gun that will launch a tennis ball  or some other heavyish thing upwards of 100 feet. If i can get it to work. Pics this week.

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Fred the Penguin (author)2010-04-08

just a couple of questions:
can we use elastics to lock the trigger into place?
can we use elstics to build tension in something else?
and can I please have a hot chocolate?

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user

Read my updated challenge text.
Read my updated challenge text.
I will email you one.

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user

YAY!

email is

ohmygodlogicboyisthemostawsomistpersonintheworld@gmail.com

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user

Sure, I'll send it to ohmygodlogicboyisthemost fullof himselfpersonintheworld@gmail.com right now! (read that email address carefully)

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user

nah thats my old account, I forgot the password,

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Hiyadudez (author)2010-04-09

I have an idea... But at least I've got a use for these. And my gun idea better work, I took apart a $35 robot to get these.... LOL!

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Hiyadudez (author)2010-04-09

I'm in! I'll get building...  have an awesome idea.

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~KGB~ (author)2010-04-08

NO ELASTIC BANDS???!!! THATS STUPID!

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Oblivitus (author)~KGB~2010-04-08

I just changed the challenge a bit. You can use string, part tension, flexible rods, springs, magnets, motors, gear ratios, or anything else besides elastics to get a firing gun.

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~KGB~ (author)Oblivitus2010-04-08
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~KGB~ (author)DJ Radio2010-04-08

lol, its a really dumb idea...

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TheDunkis (author)2010-04-08

I doubt it'll win but can I enter my SYCAMORE gun?
https://www.instructables.com/community/Code-Name-SYCAMORE-Gun/
It uses a spring for the magazine even. It did use a band for the trigger but if you'd really fuss over that, I'd go change it into a spring or something. I suppose I could just make an entirely new gun that is better seeing how that thing was made in like 10 minutes.

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Oblivitus (author)TheDunkis2010-04-08

You can enter, I just added this text to the challenge; "Weapons that use elastics are allowed to be entered, but each instance of elastic use will reduce its chances of winning." So removing the elastic on the trigger will improve your chances.

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DJ Radio (author)2010-04-08

How about some provision so that people don't just enter a normal firing pin gun and say it just uses knex and tape?

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Oblivitus (author)DJ Radio2010-04-08

I just changed the challenge a bit. You can use string, part tension, flexible rods, springs, magnets, motors, gear ratios, or anything else besides elastics to get a firing gun.

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DJ Radio (author)Oblivitus2010-04-08
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Oblivitus (author)Seleziona2010-04-08

I just changed the challenge a bit. You can use string, part tension, flexible rods, springs, magnets, motors, gear ratios, or anything else besides elastics to get a firing gun.

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sprout_less (author)2010-04-08

 Well I think its cool. I will probably enter something.

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