4/15/2022

Diy Coin Slot Mechanism

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These narrow plastic devices measure 1-1/4'x1', and are only 3/8' thick. They contain a music box which begins to play when a coin is inserted into the slot. Using this astounding bit of high technology you can convert any wooden or stained glass bank into an interesting gift or attractive item to sell at a flea market or Zen smoker. Just enlarge the existing slot to accommodate the Bank Slot. DIY Vending Machine with Arduino admin May 15, 2020 Arduino coin coin acceptor dfplayer machine vending This is companion article for my YouTube video about how to make DIY Vending Machine using arduino and Coin Acceptor. Adafruit Industries, Unique & fun DIY electronics and kits Coin Acceptor - Programmable 4 Coin Type ID: 787 - Your project may be free-as-in-speech, but that doesn't mean it has to be free-as-in-beer.

Diy Coin Slot Mechanism

MAKE YOUR OWN SLOT MACHINE
Making slot machines isn't too difficult. Theyhave a much easier life than most of the things I've made because they only workwhen a coin is inserted - unlike clocks and interactive museum exhibits. Theyare worth the effort because they can be brilliantly satisfyingto make. I've split it into 3 sections

COINMECHANISMS CONTROLSOUND/ VIDEO AND COMPUTERS


Coin mechanisms
 The coin mechanism checks the coin is genuine,and then switches a momentary electrical contact to start the machine running. Ifyou're not too worried by people putting coins of the wrong value in - andwashers etc, its simple to make a coin mechanism yourself. If you want to besure the correct coin is inserted, buy a commercial coin mechanism. The coinacceptor only makes a momentary contact, so you will also need a circuit toconnect it to - see control

Diy Coin Slot Mechanism Hardware

HOMEMADE COIN MECHANISMS

The simplest is a horizontal slot with a gentle slope behind. The slope has a bit of wire running down each side. A coin simply makes an electrical contact between the two wires as it slides down the slope.


Another way to make a coin mechanism is to buy a low torque microswitch.

The weight of a coin is enough to trip the switch as it falls. You can make the coin slot and slide out of metal, plywood or even cardboard.
Click here for full size templates

if you know a bit about electronics, its even simpler to use a slotted opto switch or inductive sensor, as adjusting the microswitch can be fiddly.

COMMERCIAL COIN MECHANISMS
There 2 basic types, mechanical and electronic.

In the mechanical ones the coins roll down a slope. Coins of the wrong size and metal fall off and come back out the reject slot below. Genuine coins travel along the slope and off the end, tripping a microswitch as they fall.
The advantages are: they’re simple, can be used outdoors. Disadvantages are they jam more easily than the electronic ones. The Coin Controls S1 (pictured) is available from Eurocoin for about £45.

Inside the electronic coin mechanisms, the coin rolls past two coils which sense the eddy currents generated by the moving coin. A microprocessor then compares the eddy currents with those of genuine coins, stored in its memory. An electromagnet then deflects fake coins out the reject slot. Real coins produce an output on a serial or parallel port (the parallel port is simplest to use, one pin usually changes state for each coin denomination).


The advantages are that coins jam less often and the electronics can recognise every different coin (some even have logic to add the coins until the required value has been inserted). Commercial arcades prefer them as they take more money because people can use the machine with whatever change they have in their pocket. The disadvantages are that they were more expensive – almost £100 - and can be less straightforward to connect to the rest of the machine.
The simplest one to use I've found is the Multi Coin Acceptor CH926 from Tiwan which you can buy on ebay for about £25.

You can also buy a timer/relay board for it which gives an adjustable timed output when the right amount of cash has been inserted. There's even an add on LED display to show how much has been put in.

As a laundromat owner you know there is nothing more frustrating than having a coin jammed in one of your machines. Whether the cause of the jam is a damaged coin or a worn out slide mechanism, remedying the problem can be easy if you know how to take the machine apart to get to the stuck coin. If you need a new or used vended dryer or vended commercial washer in Charleston, SC, make the call to T & L Laundry Equipment for big savings.

Ideally, a stuck coin should dislodge from the chute with a press of the coin return button. However, when that doesn't do the trick, there are a few tried and true things you can try to get that coin to move before you take the assembly apart.

  • Put another coin into the slot and attempt to use this action to dislodge the stuck coin.
  • Slap the side of the machine where the coin slot is located to get the coin to move.
  • Place a piece of wood or something to protect the finish of the machine and tap on the wood with a hammer to unjam the coin. Use caution not to hammer so hard that you cause damage to the machine. A gentle vibration may loosen the coin.
  • If the coin has tipped inside the coin slot, the coin slot may not move. Using a utility knife to push the coin upright may allow it to pass through normally.
  • Attempt to pull the coin out of the slot with tweezers.

If the coin slide, rather than the coin, is the issue you may need to disassemble the coin acceptor. Follow these steps to correct the issue:

  • Remove the coin store tray and empty it. Check to see if anything is blocking the coin shoot inside.
  • Take off the maintenance panel on the top face of the coin slide housing. The panel is usually locked in the back with a key.
  • Remove the long bolt that runs from the maintenance panel to the front of the housing.
  • Disconnect any wiring from the slot mechanism and carefully free the mechanism from the housing.

Diy Coin Slot Mechanism Car Bodies

The offending coin or debris should be able to be clearly seen at this point. Once you have cleared the slot, test the mechanism with a fresh coin before you reassemble the mechanism.

Diy Coin Slot Mechanism Coins

It is important to note the placement of any nuts, screws, connections, or other parts as you disassemble the coin slide. If the problem continues, the mechanism may need to be replaced. The good news is that since you know how to remove it, you can replace it.

Diy Coin Slot Mechanism Games

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