Screenshots from the video:

In case you’ve been living under a rock for the past few years, here’s the Diet Coke and Mentos video:

Launched in 2006, HacknMod has grown to be one of the biggest hacking and modding community on the web. At HacknMod, users will find hundreds of tutorials, guides, and even step by step video lessons to learn to hack and modify common (even retro) game consoles such as the Xbox 360, Wii, PSP, NES, Atari, etc. Not only does HacknMod demonstrate game console hacking, but they also have loads of information on modding AirSoft guns, Windows, Mac, iPods, robotics, case mods, coke machines, and even elevators (skip floors).

The HacknMod team is devoted to seeking out all the best hacks, mods and DIY (do it yourself) projects around web. HacknMod’s step by step hack archive is updated daily (sometimes several times each day) so users always look forward to fresh content. Have questions or problems attempting a hack? No problem. Head on over to the HacknMod forum where users show off their hacks as well as assist others. So when you decide to Build a Giant Pedal Powered Tank, make a Paintball Machine Gun, Add LED’s to Your 360 Controller, or even Build Your Own Segway, stop by and take a gander at what HacknMod.com has to offer.

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Yeah, we’ve all seen about 200 videos about coke geysers, big deal.  That’s nothing compared to these guys.  Dozens of empty two liter bottles juiced full of pressure strapped to one man’s back equals a 300 foot launch.  Japan is famous for their insane TV shows, and this is no exception.  Mythbusters tested something like this, but they used less bottles.  What do you think, is it fake?  Let us know in the comments.

I routinely get my money back, and other coins as well. You might be able to do the same thing. (Note: I used to fix this stuff for a living, so I learned how they work.) Learn how.

How to Hack it

1. Once you have put your money in and selected your drink you need to hold the vending chute flap open while the machine attempts to deliver your drink to you.
2. The machine will think the product is out of stock and return your money to you, you can then release the flap and collect your beverage
3. You can only use this method once on every different type of drink the machine vends as it will cause it to think the drink is out of stock, a slight disadvantage but still a great method to use when your thirsty!
4. If you want to find out more about this hack then check out the creator’s site.

We ask that when reading the article you take into consideration that we are very sarcastic. Except for the part about not trying this we mean that DO NOT TRY THIS! So many people have seen the lame pop machine hack where you bring up the debug menu -

Cool for like five minutes but ultimately useless (doesn’t impress anyone). But it was this thought that got the ball rolling. I was studying for my A+ certification in a tech center class there were about 6 other kids in the class and we regularly got our morning pop and one day I tried holding the door through much experimentation I was able to perfect the technique into what it is today. Read on for more details.

Book Shelf Hacks What Although it may sound awfully boring, you’ve got to see some of these outstanding designs.  Make a roll up bookshelf, invisible book shelf, everything you could possibly think of.  Well, they did forget to include Beer and Coke Bottle Shelves as well as the Tetris Shelf.

The Equation Bookshelf is designed by Marcos Breder and is a simple idea of to divide things in priority order. As you can see the design is quite unique, stylish and original. You can put together the books that you need immediately or more important between (parentheses) or maybe a photo, or something important for you to be the focal point of this bookselhf. Set others between [square brackets] and {braces}.

The Rolling Shelf has one end made from individual pieces of wood held together by fabric. This new flexible hinge allows you to really create some unique shelving options that are aesthetically interesting.

Hacking Coke Machines
PREFACE

Coke vending machines are everywhere. They’re getting more and more like regular computers with LEDs that show little “ICE COLD” messages and whatnot. Well, there’s a lot more to those little built-in computers than you may think. Included in the low-level operating system that these babies run on is an actual debug menu that gives you access to all sorts of machine information and possibly gives you free cokes in older machines.

WHICH MACHINES WORK

There’s a very strict list of vending machines that have the debug menu. First off, they’re all COCA-COLA product vending machines. This means the giant, un-missable picture on the front must show any of the following: Coke, Dasani (Water), Barq’s Root Beer, Vanilla Coke, Cherry Coke, Sprite, Evlan (water), Fanta, Fresca, Frutopia, Hi-C, Sprite Remix, Mad River, Mello Yello, Minute Maid, Nestea, Odwalla, Mr. Pibb/Pibb Xtra, Planet Java, Power Ade, Seagram’s Ginger Ale, Simply Orange, Sparkletts, or Tab. Of course anything Diet or Caffeine free works too. The machine must have an LED screen. Some of the older ones just allow the LED to be set to a price amount and won’t have the debug menu. You’re safer if the little LED is telling you something. Usually it will scroll a little message like “Ice Cold Cokes”. Newer machines are more likely candidates.

ACCESSING THE MENU

To enter the menu, there’s a button combination.

HERE’S THE ONLY THING YOU HAVE TO REALLY REMEMBER:

[4]-[2]-[3]-[1]

The buttons are numbered depending on how they are positioned. They will either be vertical (more likely), or in horizontal rows of 4 buttons per row. If it is vertical, the first button is #1, the one below it is #2, and so forth. If the buttons are in horizontal rows, the first button is #1, and the one to the right of it is #2. The numbers work like a type writer after that. In rows of 4, the first button of row 2 will be button #5. So, to
review, getting in to the debug menu looks like this:

COKE MACHINE::::::
$1.00 ——-
————-
[ Coke ] <– Hit this button last
[ Coke ] <– Hit this button second
[ Diet Coke ] <– Hit this button third
[ Sprite ] <– Hit this button first
[ And so on ]
————-

Some text should show up on the LED (probably the word “Error”,
we’ll explain what it means next sections). If nothing happens,
your machine doesn’t have the debug menu.

NAVIGATION

To navigate from option to option (What they are is next
section), remember the numberings we gave the buttons. They work
as follows:

Button [ 1 ] – Exit/Back
Button [ 2 ] – Up
Button [ 3 ] – Down
Button [ 4 ] – Select

OPTIONS

Depending on the age of the machine, you will get a varying
amount of default options available.
On older machines: SALE, VER, EROR, and RTN
On newer machines: CASH, SALE, EROR, and RTN

CASH – Machine Earnings Display

The CASH option will display how much money is in the machine
currently. It generally takes a second or two to load. From here,
you can scroll up and down through 12 or 16 different options,
depending on the machine age. These other options display how
much money was spent on each individual item, classified through
its button (or slot, as I like to call it) number.
A neat side note about the slot numbers is that there are more
slot numbers than there are actual slot, so usually the last 4
buttons contain zero money. This could be so that the same OS
could be used on bigger machines, but the newer machines have
even more slot numbers.

SALE – Total Sale Count

The SALE option displays how many drinks have been sold out of
the machine. This tends to be cumulative, but not on all
machines. The stock guy is probably supposed to reset this each
time he re-stocks. Also, this has the same sub-options as the
CASH option, where you can scroll up and down and see how many
drinks have been sold from each slot.

VER – System/Machine Version

This option will cause a large alphanumeric string to scroll
across the LCD. The number looks very much like a serial number,
but doesn’t vary from machine to machine. It is most likely the
OS or machine version number, but of the older machines that have
the option, I haven’t seen one that doesn’t have the same number.

EROR – Error Log

There are 8 different types of errors – COLJ (Column Jams), VEnd
(Vend Mechanism), door (Door Switch), sels (Select Switch), CHAR
(Changer Errors), acce (Acceptor Errors), StS (Space-to-sales
errors), and bVal (Bill Validators). The separate types and
actual errors are useless, as you assumably can’t get inside the
machine, BUT(!) you can clear the errors. Hold the enter (Number
4) button down for about 2 seconds, and it should clear the error.

RTN – Return

This is simply the return option. Selecting this will exit the
debug menu. On newer machines, pressing the BACK button at the
main menu will not exit, and RTN must be selected.
A side note: The menu can also be exited by pressing the coin
return button.

EXTRAS

By holding in the coin return button and not releasing, on the
newer “big-button” machines, this will display the internal
temperature in Fahrenheit, as in “42F”.

**Update**

There are many more menu options that are only accessible if
they’ve either been enabled from the computer inside the machine,
or on the internal computer behind the door (Probably not
feasible for you to access).

CPO – Coin Payout Mode

You can can dump coins from the coin mechanism, and the various
menu options allow you to choose which type of coins (Nickels,
dimes, etc.) are dumped.

tVFL – Tube Fill Mode

This is useless to you. This allows you to load coins into the
coin tubes, which you can’t do from the outside.

TEST – Test Routines

This allows you to test the following various routines:
SE Allows you to test the buttons. Will give you number
of button when you press it
SP Sold-out paddle test. Not quite sure, most likely internal
function.
Su Sold-out switch test. Same as paddle.
CO Motor test. Will run various column motors.
Cn Coin test. Put in a coin and it will tell you what kind of
coin it is.
nA Note acceptor test. Same as Cn, but for bills.
dSP Display test. Will illuminate various LEDs.
vErS Rattles off version number.

RELY – Relay test

This tests the relay electronic control of various parts. Do not
do, as it will cause damage if various internal parts are not
unplugged before usage.

PASS – Password

This is not normally accessible, but allows you to change the
menu password from the 4-2-3-1. Whoo!

PrIC – Price Setting

Used to set the price for a drink. Not sure how to work it, but
it seems simple enough.

StOS – Space-to-sales routine

Lets you change the STS routine and other options. This means
that various buttons will all mean the same thing, i.e. the 6
coke buttons don’t actually vend from 6 different columns, but
vend from one (changing when one runs out of course).

COn – Machine Configuration/Permissions

This is the machine config menu that decides what of these
options you are allowed to access through the outside panel. This
is probably only accessible with the door open. I won’t go into
detail, but I’ll list the Config numbers and what each do: C1
sets price menu on, C2 sets special (manufacturer) options on),
C3 disables the “ICE COLD COKE” message. C4 is autoviewing of
menu when door is opened, C5 is door switch status, C6 is
mysteriously reserved for “future use”, C7 determines whether
your money credit stays in for 5 minutes or indefinitely, C8 is
Force Vend, C9 allows multiple vends without putting in more
money (i.e put in a 5 and get 3 cokes and then your change), and
C10 is Escrow Inhibit.

CCoC – Correct Change Only Control

Adjusts Correct Change only rule to your liking.

TIME – Time Adjustment

Allows you to set the machine’s local time.

LANG – Language Selection

Not sure how many languages are supported, but there are
apparently more than just English.

USEFULNESS

Unless you can get behind the door, there’s little you can do
with this except impress your friends. However, if you’re able to
set the C-switches properly, you’ll be able to manipulate the
machine in any way you want, get free drinks, change the price,
set up cool buy-one-get-one-free deals, etc, etc . Not to
forget, knowledge is power. One step closer to free sodas!