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Hello everyone! What I have here is a small project that I worked on for a few weeks: a leave me alone box! I've seen lots of these boxes around on the internet, so I decided to build one out of Knex. :-) It is purely mechanical and uses things like an arm, crank, and a more compact version of the motor switch system I invented in my skeeball machine

Note: If you use the mechanism anywhere else, please give me credit. 

Here's a video of the box in action:


If you want to build the leave me alone box, then move on to the next step!
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Step 1: Time to Count! (Optional)

These are the pieces I used to build the leave me alone box. The box uses a lot of pieces, so if you don't have enough you could make it with blue/yellow rods instead of green/white rods. The pieces below are listed with their classic-colored names. Counting is so much fun!

Rods: 436

green- 263
white- 156
blue- 8
yellow- 7
red- 2


Connectors: 265

dark gray- 24
light gray- 9
red- 29
green- 7
yellow- 24
orange- 13
white- 51
blue- 14
purple- 94


Other: 57

blue spacer- 20
silver spacer- 11
tan clip- 11
black Y clip- 10
medium yellow gear- 1
small blue/brown gear- 1
newer-style battery-powered motor (green)*- 1
blue hinge- 1
black/green hinge- 1

Total: 758

*You must use this type of motor. Keep in mind that motors of different colors go different speeds.

Step 2: Bottom Panel

Let's start off with something simple. This is the bottom of the box where everything will attach.

Throughout this Instructable, make sure to pay attention to the numbered picture descriptions.

1- Build it!
2- The bottom of the bottom. See what I did there? ;-)

Step 3: Motor

Now you will attach the motor to the bottom and slide in the axle.

1- Build these.
2- Another view.
3- Attach the one with the yellow connector to the motor.
4- Attach the other side.
5- Connect the motor to the bottom.
6- Another view.
7- Get these things for the axle.
8- Slide it into the motor as shown.

Step 4: Motor Switch

Now that the motor is attached, it's time to build the motor's switch.

1- Get a yellow rod and put it in between the motor and casing.
2- Get a dark gray connector and connect it as shown.
3- Get another dark gray connector and connect it above where the motor's switch is.
4- Build this thing, which will strengthen the switch.
5- Another view.
6- Attach it to the motor section. The switch should now slide nicely in either direction if you move the yellow connector.
7- Another view.
8- Another view.

Step 5: Gear and Rods

Everybody likes gears! After the gear, you'll add it some random white rod things.

1- Build this.
2- Another view.
3- The gear section attaches to the bottom in two places.
4- Another view.
5- This will secure the gear in place.
6- Another view.
7- Attach it like so.
8- Get these.
9- Attach them to the blue connectors.

Step 6: Lever

This lever is what you will push to activate the machine. 

1- Build the lever.
2- Another view.
3- What?! Wrong lever, skip to the next picture...
4- Attach the lever. Make sure the white rods it attaches to are pushed all the way down.
5- Another view.
6- Another view.
7- Build these random things.
8- Attach them to the bottom.

Step 7: The Crank

If you're feeling cranky, then this step is for you. Also included is a section of wall for the box.

1- Build the crank.
2- Attach it to the yellow gear's axle.
3- Get these.
4- Connect them.
5- Build this square.
6- Slide it onto the white rods.
7- Build this.
8- Slide it onto the white rods.
9- Build a wall section.
10- Attach it to the rest of the model.
11- A view of the other side.

Step 8: The Arm

Now you will build the box's arm and the shutoff arm.

1- Build the shutoff arm.
2- Another view.
3- Connect it to the motor's switch. 
4- Another view.
5- Build the arm's axle.
6- Another view.
7- Another view.
8- Attach the axle to the rest of the model.
9- The shutoff arm should fit over the axle like so.
10- Another view.
11- Connect the white rod of the crank to the dark gray connector.
12- Build the arm.
13- Connect it to the axle.
14- Get these pieces.
15- Add them to the edge of the axle.

Step 9: The Box (Part 1)

Now that most of the mechanics are finished, it's time for the box!

1- Build this wall.
2- Another view.
3- Attach it to the rest.
4- Build another wall.
5- Attach it to the rest.
6- Build this. It's part of the top covering.
7- Another view.
8- Another view.
9- Build this section.
10- Combine the two sections.
11- Attach it to the top of the box. Notice how the arm is resting on the orange connectors.

Step 10: The Box (Part 2)

More box building, yay!

1- Build this.
2- Another view.
3- Attach it to the rest of the box.
4- Build another wall.
5- Another view.
6- Attach it to the rest.
7- Build this small thing.
8- Connect it to the box.
9- Build another small thing.
10- Attach it to the box.

Step 11: The Lid

You're almost done! You just have to build the lid and finish the box.

1- Build the lid.
2- Don't forget the hinge!
3- Add the lid to the box.
4- Connect the hinge.
5- Another view.
6- Build this section.
7- Attach it to the box.

Step 12: It Has Been Completed!

Congrats, you have finished! Your box will now want to be left alone. Just push the switch toward the lid and watch it turn itself off.

Feel free to post comments below and subscribe! Also, if you build the box and post a picture below, I'll add it to this step.

Thanks for viewing!
-Shadowman39

<p>any1 know where i can get micro knex for cheap?</p>
<p>There's lots of them on eBay, most likely good deals.</p>
<p>Man, where do you get all this knex?!?</p>
<p>Mostly from eBay.</p>
<p>Going to try to build it, not sure if I have 263 little black/green rods tho....</p>
<p>Most of the green rods are used in the box itself, so you could make most of the box out of different pieces if you wanted to, like this white rod lattice:</p>
Ive built this but i cant switch the lever ): please help
Fixed it, works great
<p>Cool, thanks for building!</p>
<p>AWESOME!!! I think that this is the best knex anything on instructables. It is very cool and the instructions are very good. I had to tweak it a little but it still works great.</p>
<p>Thanks man! I'm glad yours works well.</p>
<p>This was a very fun build! Very good instructions.</p><p>I've always wanted to make one of these boxes :)</p>
<p>Thanks!</p>
<p>Nice job! I made it but I needed to make 1 or 2 modifications to make it work</p>
<p>Thanks, I'm glad you got it working!</p>
<p>Looks like a fun little project. I will have to build it sometime.</p>
<p>Thanks! </p>
<p>You're welcome! :-)</p>
<p>This is such an interesting build. It took me about 1 hour 15 minutes to make. I love all the complex mechanisms in that small of a place. :D </p>
<p>Thanks for building, nice job!</p>
<p>Just finished the &quot;Leave Me Alone Box&quot; last night. Fantastic build, fantastic design, and fantastic instructions. I had a few snags but nothing that couldn't be fixed with a little bit of tweaking. Loved it! Thank you Shadowman39 for the design and instructions!</p>
<p>Thanks for building, glad you were able to work things out!</p>
<p>this thing is awesome!!!!!!!!!!</p>
<p>Thanks!</p>
<p>Hey shadowman I hope its ok but I used a bit of your mechanism in a K'nex ball counter I made I just used the casing for the motor switch system but I changed all the other parts of the auto turn off I hope thats ok I credited you in it :)</p>
<p>That's ok, I saw your ball counter, nice job! And thanks for the credit.</p>
I'm just wondering, how did you put this into the skeeball,have it release the balls (hahahaha<br>) and be activated by a quarter?
<p>This was used many times in skeeball, there were 6 of the motor switch modules: 4 for the counter and 2 for the startup/shutdown.</p>
Hehe great idea! I have to remember to build this!
<p>Thanks!</p>
<p>Had to watch the video to understand what was happening. Double crank to reverse the rotation. Brilliant!!!</p>
<p>Thanks! :-)</p>
This was a really cool project to build! I had a few difficulties though. The part that is supposed to turn it off worked a lot better when I wrapped a rubber band around it, adding more grip and size. One more thing, please highlight the importance of connecting certain gears! I forgot to and ended up having to basically dismantling half of it :P
<p>That part seems to be different for many people, probably because the switch part on Knex motors are slightly different. Sorry about the gear part, haha.</p>
<p>Amazing! I added another one of those grey 1-slots + y-clip to make sure the the other one doesn't fall off, and I had to add double-sided tapeto the turning-off part.</p>
<p>Nice! I'll add yours to the last step.</p>
1 more ish Shadowman , the lever does not turn the motor off now :-( WHYY ME
<p>You may have to continue adjusting the part that used to get jammed. You could also try adding a weight to the lid, that has worked for some people that were having problems.</p>
Thx for the tip :-) it works fine now
1 prob the lever always gets jammed when I try to turn it on and I keep having to open it up when the switch breaks off .... Any suggestions btw great build :-)
<p>You'll have to tinker with the part that switches the box off, since that seems to be blocking the lever from pushing. The dark grey connectors (or purple connectors in your case) on the top should slide over the bottom connectors when you turn it on. And thanks!</p>
It dose not slide up properly
<p>That is amazing! I built it and it works!</p>
<p>Thanks, I'm glad it works well for you!</p>
<p>yessssssssss finally i found one that i can make XD</p>
<p>i made it and it works perfectly!</p><p>thanks for the instructions</p>
<p>Awesome, thanks for building!</p>
Hi Shadowman, my box doesn't always turn itself off. Do you have any tips? <br>BTW this thing is so cool, I've told my friends about it. :)
Try making the lid heavier by adding a weight to it. And thanks!
I have just found my knew again and saw this link when searching for a useless box for a Christmas present. and thought why buy one when I can build one

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Bio: On my page you'll find lots of different Knex projects, from ball machine lifts to useful items. I hope you enjoy! &nbsp;_______________________ Current avatar ... More »
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