Knex Automated Door Closing Device by Electroinnovation
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This is the one and only Knex door closer. I admit it is not the best but it works fine. You can even close the door from far away by adding a string to the pin.
 
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Step 1: The Body

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This is the main part. It holds the counterweight. It is possible to make the tower 1 gray rod higher to shut the door even farther.
I Know a lot of the pictures are out of order but please try your best. If you have questions feel free to ask.
jman12345 says: May 10, 2011. 12:01 PM
will "c" batteries work 2 =)
Electroinnovation (author) says: May 11, 2011. 2:41 PM
sure just not as well
joey99 says: Apr 25, 2011. 1:55 PM
you could add a trip wire and make your room pitch black so when someone walks in the door closes on them!!!
halo1232 says: Apr 24, 2009. 8:41 PM
As soon as I finish building it, the door slams open and it goes SMASH!!
knex gun and grenade maker says: Apr 16, 2011. 2:04 PM
lol
tphan97 says: Jan 17, 2010. 12:03 PM
Please take more picture
FrOnTLiNe says: Feb 24, 2009. 3:51 PM
Q: Why would you want a door closer?
TigerNod says: Jul 20, 2009. 7:38 AM
A: I think it is for people that are too lazy to get out of their chairs and close the door.
Foaly7 says: Mar 17, 2009. 9:27 PM
Hmm. "Why would you want a door closer?" PROBABLY TO CLOSE THE DOOR! Not meaning to be rude, just pointing out a "duh" answer to your question.
halo99 says: Oct 11, 2009. 3:29 PM
he meant to say 'why would you need a door closer when you could do it yourself' your so dumb,you think you know everything...wow your so immature...
Foaly7 says: Oct 11, 2009. 3:33 PM
Dude, does be nice policy mean nothing to you. Plus, I said it was a "duh answer".
Foaly7 says: Oct 11, 2009. 3:34 PM
Oops, I meant "Dude, does BE NICE POLICY mean nothing to you?".
Electroinnovation (author) says: Feb 24, 2009. 5:00 PM
A: Why do you have to be so critical. I was bored so I built it.
FrOnTLiNe says: Feb 26, 2009. 3:24 PM
I was sorta kidding, I kind of thought it was pointless.
Asday says: Apr 15, 2009. 6:18 PM
Well, it closes doors, and doors are there for opening and closing, so no. No it is not pointless. Not in the least. I think what you mean, is its only value is hack value. I'd agree with that.
FrOnTLiNe says: Jul 22, 2009. 11:06 AM
well mybe everyone who is saying that it has a purpose r jst fat lards who sit around n play xbox all day n cantt get up n close a friken door.
Asday says: Jul 22, 2009. 4:50 PM
Way to generalise there. Millionaires who have their own gyms, and are in the peak of physical fitness have automatically closing doors. Gonna call them fat? If you don't like the model, don't build it, and don't judge others. You don't have the right.
FrOnTLiNe says: Sep 10, 2009. 2:47 PM
They hav money n work out. Oh ya i didnt mean to offend u when i said FAT!
mysticperson23 says: Jul 9, 2009. 7:04 AM
Famas
hellpilot says: Sep 29, 2008. 6:48 PM
(removed by author or community request)
The Jamalam says: Sep 30, 2008. 7:53 AM
stop spamming
Electroinnovation (author) says: Oct 2, 2008. 3:42 AM
Yes Please. Naxt time ill delete it earlier.
Whaleman says: Sep 29, 2008. 6:13 PM
Sorry, I already got used to closing the door when I go into a room.
Electroinnovation (author) says: Sep 30, 2008. 8:20 AM
Yes but watch this new video. You can close the door from over 15 feet away like magic.
Whaleman says: Sep 30, 2008. 3:27 PM
But why? Why would I do such a thing? Hell, I cannot do such a thing. My room is only ten feet long.
Electroinnovation (author) says: Oct 2, 2008. 3:41 AM
Than you can set it up as a tripwire. Use your imagination.
PKM says: Sep 30, 2008. 4:04 AM
Something useful that isn't a gun, made from K'nex! K'zomg! It does look a bit like a trip wire though...
arrow shot says: Sep 30, 2008. 12:03 PM
theres a bunch o' stuff thats useful made of knex :D
Electroinnovation (author) says: Sep 30, 2008. 8:21 AM
Yes I saw that before. If you put a yellow rod on the line the door still closes and you cant trip over it.
arrow shot says: Sep 30, 2008. 12:03 PM
i dont close msot doors, and this wont fit in my bathroom...and what exactly is this, jsut something that pulls a string?
Katarukito says: Sep 29, 2008. 8:33 PM
i made a light turn off thing before
Doctor What says: Sep 29, 2008. 7:29 PM
Yay! Something besides a gun! Plus one man card.
JakeTobak says: Sep 29, 2008. 8:06 PM
I'm taking away one of your man cards for enjoying something that's not a gun!
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