Instructables
I'm presenting here a pocket-sized puzzle in the first of several versions, depending on your skills, materials, tools and target audience.

In every version, though, you drop a small coin in one slot, and need to get it out of the other slot.

This first version is quick and easy to make (it took me less than thirty minutes from idea to finished item), and small enough to keep in a pocket.  It is also perfect for making with children, as a diverting way of filling an afternoon.
 
Remove these adsRemove these ads by Signing Up

Step 1: Materials

Picture of Materials
To make the "easy" version, you need thick card, something to cut it, and something to glue it.  If you are using a craft knife to cut the card, a metal ruler is also very handy.

The card needs to be as thick as the coin you design it for.

Almost any glue will do the job - PVA, glue-stick, etc.

Note: when it comes to cutting out the parts of the maze, a laser cutter would be very handy.  It would also make it a lot easier to make larger, more challenging versions.
Awesome!

Going to go and attempt a multi-level one just now!

Ross
Kiteman (author)  The Science Guy1 year ago
Ooh! Take pictures!
Finished!

Once you get to three layers it gets difficult even when you know the route.

IMAG0093.jpgIMAG0091.jpgIMAG0092.jpg
Kiteman (author)  The Science Guy1 year ago
That is awesome!
Thanks!
steveywevey2 months ago
We build a wooden one in my woodwork shop in my middle school
Kiteman (author)  steveywevey2 months ago

From this instructable? Could you post an "I made it" picture?

Fantastic!
I'm deffinitly gonna try this
Kiteman (author)  emilyvanleemput1 year ago
Cool - post a picture when you do!
I will :)
Argh, still. need. to. try. this out!!!
safay9 months ago
Love this project, especially that it reuses waste to make a toy.  I developed this into a Hacker Scouts Open Lab and tried it out this weekend.  Here's a blog post about it.  The kids and parents loved it.  Thanks for the awesome instructable!
Kiteman (author)  safay9 months ago
Oh, that's very cool - how long did they take to make them?
chipper351 year ago
So simple, yet so wonderful!!
Kiteman (author)  chipper351 year ago
Thank you!
Kevin123451 year ago
I saw your instructable this morning and after an hour of work i have one to call my own. It was easy to make when i planned it out on 1/4" graph paper, then glued that to the cardboard and added in walls one at a time. paths are 1" wide and walls are 1/4". The entire thing is 5 1/4" square. It fits a nickel.
pinger_864329190.jpgpinger_864330646.jpg
Kiteman (author)  Kevin123451 year ago
That's a very nice job!
Rainh2o1 year ago
This would be a cool stocking stuffer made from small pieces of birch and balsa...great instructible! Voted for both! Good Luck!
Kiteman (author)  Rainh2o1 year ago
Thanks!
Following a similar concept, you could make a smaller version of This
be even better as a full cube of layers
Nice, simple and addictive - 3 thumbs-up, minimum.

Couple of questions:

Just how big is it? I suppose it depends how big your pockets are, but if the 5p is 18mm square, I guess the whole thing's about 70mm square overall...?

Which leads into the 2nd question - what's the lateral clearance?

Kiteman (author)  karlpinturr1 year ago
It's actually 60mm square - the clearance around the coin is around 1mm, but if I won a laser cutter*, the clearance would be even less.



*Not that I'm hinting about votes...
What about the cardboard challenge?
Kiteman (author)  kaylaangelkisses1 year ago
That's why I made a sideshow version.
ohh... X3
Thanks.

A laser cutter would be a nice idea...

So might a 3D printer (except, I you'd lose the cardboard)... 
Jayefuu1 year ago
Is a 3 layer one coming next? That way you could increase difficulty and still keep it small.
Kiteman (author)  Jayefuu1 year ago
That was a fast comment!

Yes, layers will be involved in future versions, as will more durable materials.
Would make for a nice laser cut project too.
We just had that conversation by PM :)
Already started drawing up some files!
Kiteman (author)  gmjhowe1 year ago
I have some hand sketches ...
rimar20001 year ago
Genial idea! Is it yours?

My granddaughters will be aMAZEd!
Kiteman (author)  rimar20001 year ago
I saw one that used marbles, once. I thought coins would make the maze easier to handle.
Your improvement has a taste of genius, kiteman. I will do some for my granddaughters (please think something soon to simplify this last word).
ravenking1 year ago
What a clever idea! It seems like a fun project. :)
Kiteman (author)  ravenking1 year ago
Yes, it is.
ravenking1 year ago
What a clever idea! It seems like a fun project. :)
BLUEBLOBS21 year ago
Very cool! You say it's pocket-sized? Enter it in the pocket-sized contest!
-BLUEBLOBS2
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!