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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.
<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
Awesome, have fun building it!
This is really clever! I like it :D
Thanks!
This looks neat. ima build this soon :D
Thanks, and have fun building it!
D: just saw that it uses a yellow gear. i don't have any gear of that size D:
You can use a red gear instead. To do this you'll have to move the blue gear back one blue spacer (towards the motor), and you'll also have to move the red gear one blue spacer towards the blue gear.
I actually dont have any gear of that size. i might find a red, but i dont know. ty though :D
Wow the instructions really clear I am definitely buliding this when I get the right motor :-)
Sounds good, thanks!

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Bio: On my page you'll find lots of different Knex projects, from ball machine lifts to useful (and useless) items. I hope you enjoy!  _______________________ ... More »
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