The machine is already running before you sit down
A Double Diamond slot machine does not need to be switched on, booted up, or activated by a player. The machine is already in a powered, idle state when it is on the casino floor, and the only action that starts a game is the spin command you give it. There is no separate start button on most versions of this machine; the button labelled Spin, or the handle on older cabinets, is the start command.
What you are really doing when you press that button is not starting the machine. You are starting one play cycle. The machine was running its random number generator the entire time it sat idle, and the moment you press Spin it stops on a result that was already determined in the instant before the reels began to move.
What the spin button does
On a Double Diamond machine, the spin button sends one instruction to the game's processor: resolve the current play. The machine reads its internal random number generator at that moment, maps the number to a reel position for each of the reels, and then animates the reels spinning to show you the result it has already selected. The animation is cosmetic. The outcome is fixed before the first reel symbol visibly lands.
There is no skill, timing, or technique involved in starting the machine. Pressing the button harder, holding it longer, or releasing it at a particular moment does not change the result. The same is true for the pull handle on older Double Diamond cabinets, which is a mechanical switch that sends the same single instruction as the button.
The sequence from idle to result
Understanding the start sequence helps explain why nothing you do at the moment of starting matters. The machine moves through a fixed sequence of internal states, and only one of those states is visible to you.
| Step | What happens inside | What you see |
|---|---|---|
| 1 | Machine idle, random number generator running continuously | Reels static, lights on, credit meter showing your balance |
| 2 | You press Spin or pull the handle | Button press, reels begin to move |
| 3 | Processor reads the random number generator and maps it to reel stops | Reels still spinning, no visible change |
| 4 | Result is locked in | Reels begin to slow |
| 5 | Machine compares result to its paytable | Reels stop one by one |
| 6 | Win or loss is credited to your meter | Winning symbols shown, credit meter updates |
The important point is that step 3 and step 4 happen before you can see any outcome. By the time the first reel slows down, the machine has already decided whether you won or lost. The spinning animation is there to build anticipation, not to give you information you can act on.
What you need before the machine will start
A Double Diamond machine will not start a play cycle unless certain conditions are met. These conditions are not about the machine's power state; they are about your credit balance and the machine's current state.
- You need at least one credit available on the machine. A credit is the machine's unit of play, and the number of credits required for one spin depends on the machine's denomination and how many paylines or coins the version you are playing uses.
- The machine must not be in the middle of another play cycle. If the reels are already spinning, pressing Spin again does nothing.
- The machine must not be in a payout state. If you have just won and the machine is counting up credits, you usually have to wait for the count-up to finish before starting the next spin.
- On some versions, the machine must not be in a help or rules screen. You may need to close that screen before the Spin button responds.
None of these conditions are secret or skill-based. They are the same conditions that apply to any mechanical or video slot machine, and they are shown on the machine's own display or printed on its glass.
Double Diamond is a three-reel, single-payline game
The Double Diamond machine is a three-reel slot with a single payline across the centre of the reels. This matters for how you start it because on a single-payline machine there is no payline selection step. On multi-line video slots, you often have to choose how many lines to play before you can spin. On Double Diamond, that choice does not exist. The only decision you make before starting is how many credits to wager on the single line.
The machine's name comes from its Double Diamond symbol, which acts as a wild symbol and multiplies payouts when it appears in a winning combination. But the starting procedure is identical whether you are playing for one credit or the maximum number of credits the machine allows.
Where the start button is on the machine
The physical location of the start control varies by cabinet style. Older Double Diamond machines have a pull handle on the right side and a Spin button on the button deck in front of the screen. Newer video versions may have only a Spin button, often the largest button on the deck, and some have a touchscreen Spin control on the display itself.
There is no universal standard for which button is the start button, but the machine labels it. Look for the word Spin, Play, or a circular arrow icon. If the machine has a handle, pulling it all the way down and releasing it sends the same start command as the button. You do not need to do both.
Why the outcome is already decided when you start
The core mechanism behind every modern slot machine, including Double Diamond, is a random number generator. This is a piece of software that produces numbers continuously, thousands of times per second, even when no one is playing. Each number maps to a specific reel position. When you press Spin, the machine takes the number that was generated at that exact moment and uses it to set the reels.
This means the result of your spin was determined by a number that existed before you pressed the button. Your press did not influence which number was selected. The machine did not wait to see how you pressed, how long you held the button, or whether you pulled the handle slowly or quickly. The number was already there, and your press simply told the machine to use it.
This is the single most important thing to understand about starting a Double Diamond machine. Every spin is independent of every other spin. The machine does not remember what happened on the last spin, and it does not become more or less likely to pay based on how many spins you have made. The start command is a request to resolve one independent random event, nothing more.
What to confirm before you play
Before you sit down at a Double Diamond machine, there are a few things worth checking on the machine itself. The machine's glass and its on-screen help pages carry the current rules for that specific cabinet, and those rules can differ between versions.
- Check the denomination shown on the machine's glass or screen. Double Diamond machines exist in different denominations, and the denomination sets the cash value of one credit.
- Check the maximum bet. The machine will show how many credits you can wager per spin, and some versions require the maximum bet to qualify for the top jackpot.
- Check the paytable. The paytable shows what each symbol combination pays and how the Double Diamond wild multiplier works on that version.
- Check whether the machine accepts cash, a ticket, or a player card. The credit meter shows your balance, and you need at least the minimum credit amount before the Spin button will respond.
The authoritative source for any of these details is the machine itself. The printed glass and the on-screen help pages are updated by the machine's operator and reflect the current rules for that cabinet. If a machine has been moved, reconfigured, or updated, the printed information on the machine is what governs.
FAQ
Is there a separate start button on a Double Diamond machine?
On most versions, no. The Spin button or the pull handle is the start command. Pressing Spin sends one instruction to the machine's processor, which resolves the play using the random number generator. There is no separate power or activation button that a player needs to press before the machine will respond.
Does pulling the handle instead of pressing the button change the result?
No. The handle and the Spin button send the same instruction to the machine's processor. The result is determined by the random number generator at the moment the instruction is received, not by the physical action that sent it. Pulling the handle harder or slower has no effect on the outcome.
Why does the machine not start when I press Spin?
Usually because one of the start conditions is not met. You may have no credits on the meter, the reels may still be spinning from a previous play, the machine may be counting up a win, or a help screen may be open. Check the credit meter and the screen, close any open menus, and wait for any active play cycle to finish before pressing Spin again.
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This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.