“Vending machines use light sensors to measure the size of a coin and electromagnets to detect the metal type to determine what kind of coin it is,” Chan writes. “If you’re not shaped like a quarter and built like a quarter, you ain’t a quarter in their book.” The process is a fascinating one.

How does a vending machine know what coin you put in?

Special light sensors are built into the machine that measure the thickness of every coin inserted. These sensors can distinguish between pennies, nickels, dimes, and quarters.

Can you use fake coins on vending machines?

A slug is a counterfeit coin that is used to make illegal purchases from a coin-operated device, such as a vending machine, payphone, parking meter, transit farebox, copy machine, coin laundry, gaming machine, or arcade game.

Do vending machines make good money?

Are vending machines profitable? Yes, vending machines can be profitable. The average vending machine earns $35 a week, but vending machines that are well-stocked and placed in safe, high-traffic locations can generate over $400 a month.

How do people die from vending machines?

More recent statistics by the National Electronic Injury Surveillance System said that between 2002 and 2015, vending machines caused an average of 4 US deaths per year. Almost all reported accidental deaths involving vending machines in the US were caused by the customer tipping the machine over onto themselves.

How do you trick a bill acceptor?

This usually involves attaching a mylar tail to the bill. I have seen lots of these over the years. Sometimes only a small strip of the original bill is used, and other times the bill has strategic cuts placed in it to cheat the acceptor. Then the bill is retrieved by the theif by pulling on the tail.

What’s the difference between a change machine and a vending machine?

Change machine. A change machine is a vending machine that accepts large denominations of currency and returns an equal amount of currency in smaller bills or coins. Typically these machines are used to provide coins in exchange for paper currency, in which case they are also often known as bill changers.

How does a vending machine accept paper money?

If the machine accepts paper money, the money is pulled in using rollers. Once inside, the machine uses a digital scanner to identify the bill’s denomination before storing the bill away in a cash box.

How does the laser work in a vending machine?

At the bottom of the vending machine, a line of laser beams determines if your product has been released by the metal spirals. Each laser beam is paired with an electronic light sensor. When your product falls it breaks this path, telling the computer that it was a successful transaction.

What happens when something falls out of a vending machine?

After the product falls, the customer simply retrieves the item from the bin. On many machines, a simple door protects the item from bouncing out of the machine after reaching the bin; this door also folds into the machine on hinges to prevent customers reaching additional items on the bottom shelf.