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2 coin mechs for 4 player setup
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DaveMMR:

--- Quote from: Hooch on June 03, 2004, 11:15:48 pm ---
--- Quote ---The problem you would run into with the "shift key" solution is that your encoder will read ALL keypresses as shifted during the time that the shift key is down.
--- End quote ---
I hadn't thought about that.  I'm glad you mentioned this before I wired up.  This would definitely be a problem.


--- Quote ---I think your best bet to remain at least reasonably authentic would be to wire the reject buttons on the 2-P coin door to function as Coin3 and Coin4.
--- End quote ---

I've thought about this also.  This will probably be the way I go.  I doubt players 3 and 4 will get much use anyway, except for times when I have a group of people over at once.

My problem was that I purchased a 2 coin over/under before I realized the dilemma it would cause.

--- End quote ---

Oh sorry, didn't know you already purchased the coin door.  I reread the posts and it seemed like I was being sarcastic (though I wasn't).

Of course you could pick up a second 2 coin over/under door (though I'm not sure of your measurements so I don't know if it'll fit).  But as a secondary measure, wiring up the rejects is a pretty good solution as well.
Hooch:
I didn't take offense.  You didn't sound rude.  At this point in the process I'm starting to become more budget conscious or else I would just purchase another coin mech.  There are a few unnecessary things I will probably put off until after the cab is finished and I have saved up some more cash, this being one of them.
Tilzs:
You have 3 options.

1). 4 player coin mech. Although it adds to the arcade feel, I think you and your guests might find the novelty wares off quick
2). Shift button coin instert. Advantage - No need for a credit button, disadvanatage, screws up players when shift is pressed.
3). Dedicated coin Button. Advantage - no need for 4 person coin door or any door, Disadvanatage - Need a button for it.
Thenasty:
This is my take on this.

If you have separate 4 players start buttons, then this should work.

Setup MAME in THOSE GAME (4-players) coin1 coin2 coin3 coin4 to be

Coin1=5 and 7    (P1 and P3)
Coin2=6 and 8    (p2 and P4)

So now when a coin is drop in player1 slot, it gives Player 1 and 3 credits and so for droping coin in slot 2, P2 and P4 gets credits.

Now If P1 is not using his credits and p3 keeps inserting coins, p1 credits just keep adding up until he uses it.

Hope you see the picture.
SoundDoc:
So your building a 4 player Control panel with only a two player coin door, Correct?

Heres an idea I've been bashing around, just to get around the need to always insert a coin in the cab I'm building:

Mount a small microswitch, or leaf switch in the coin mech, that is closed when the Coin Release is pressed.

I'm going to do that, but have it tied to the coin switch, so either a coin, or pressing the Coin Return button in cause a credit to count.

No reason you couldn't have coin return 1 count for player 3, and coin return 2 count for player 4.

Just an idea....

SoundDoc
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