Introduction: Knex Automated Door Closing Device

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.

Step 1: The Body

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.

Step 2: The Counterweight

You need 2 D batteries for this. Duracell are the heaviest.

Step 3: That Other Part

It is the pulley that closes the door. To see how to set it up watch the video or look at the next step.

Step 4: Setup

It is hard to explain and I have no pictures, but I'll try my best. Place the door closer on the back side of the door near the hinges. the open part on the frame should be facing the door. the other part goes on the opposite side with a weight on it. Please watch the video and refrain from asking too many confusing questions. Mods:place this wheel to make the door close faster.

Step 5: More Pics and Vidoes

Wow. even more marvelous things to look at. Sorry I don't have anything yet.

Comments

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jman12345 made it!(author)2011-05-10

will "c" batteries work 2 =)

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Electroinnovation made it!(author)2011-05-11

sure just not as well

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joey99 made it!(author)2011-04-25

you could add a trip wire and make your room pitch black so when someone walks in the door closes on them!!!

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halo1232 made it!(author)2009-04-24

As soon as I finish building it, the door slams open and it goes SMASH!!

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knex+gun+and+grenade+maker made it!(author)2011-04-16

lol

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tphan97 made it!(author)2010-01-17

Please take more picture

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FrOnTLiNe made it!(author)2009-02-24

Q: Why would you want a door closer?

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Foaly7 made it!(author)2009-03-17

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.

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halo99 made it!(author)2009-10-11

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...

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Foaly7 made it!(author)2009-10-11

Dude, does be nice policy mean nothing to you. Plus, I said it was a "duh answer".

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Foaly7 made it!(author)2009-10-11

Oops, I meant "Dude, does BE NICE POLICY mean nothing to you?".

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Electroinnovation made it!(author)2009-02-24

A: Why do you have to be so critical. I was bored so I built it.

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FrOnTLiNe made it!(author)2009-02-26

I was sorta kidding, I kind of thought it was pointless.

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Asday made it!(author)2009-04-15

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.

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FrOnTLiNe made it!(author)2009-07-22

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.

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Asday made it!(author)2009-07-22

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.

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FrOnTLiNe made it!(author)2009-09-10

They hav money n work out. Oh ya i didnt mean to offend u when i said FAT!

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TigerNod made it!(author)2009-07-20

A: I think it is for people that are too lazy to get out of their chairs and close the door.

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mysticperson23 made it!(author)2009-07-09

Famas

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The+Jamalam made it!(author)2008-09-30

stop spamming

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Electroinnovation made it!(author)2008-10-02

Yes Please. Naxt time ill delete it earlier.

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Whaleman made it!(author)2008-09-29

Sorry, I already got used to closing the door when I go into a room.

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Electroinnovation made it!(author)2008-09-30

Yes but watch this new video. You can close the door from over 15 feet away like magic.

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Whaleman made it!(author)2008-09-30

But why? Why would I do such a thing? Hell, I cannot do such a thing. My room is only ten feet long.

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Electroinnovation made it!(author)2008-10-02

Than you can set it up as a tripwire. Use your imagination.

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PKM made it!(author)2008-09-30

Something useful that isn't a gun, made from K'nex! K'zomg! It does look a bit like a trip wire though...

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arrow+shot made it!(author)2008-09-30

theres a bunch o' stuff thats useful made of knex :D

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Electroinnovation made it!(author)2008-09-30

Yes I saw that before. If you put a yellow rod on the line the door still closes and you cant trip over it.

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arrow+shot made it!(author)2008-09-30

i dont close msot doors, and this wont fit in my bathroom...and what exactly is this, jsut something that pulls a string?

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Katarukito made it!(author)2008-09-29

i made a light turn off thing before

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Doctor+What made it!(author)2008-09-29

Yay! Something besides a gun! Plus one man card.

author
JakeTobak made it!(author)2008-09-29

I'm taking away one of your man cards for enjoying something that's not a gun!

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