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Trying to figure out how/what to do

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markb:
The Motherboard size inside will make little difference if you are building a 2 player portable controller as it will have to be a fair size to get 2 players around it anyway.

Here's some things to think about:-
Plenty of cooling both going in and out of the case, the temps on my portable are 10C higher than when the components were in a regular case.

Mobo should be AGP as PCI TV out cards are alot harder to come by than AGP TV out cards.

Mobo should also have internal USB pins so that you dont' have to feed a USB wire out the back for an IPac or some such.

The TV out card should be capable of sending out a signal to both a monitor and a TV at the same time. Some aren't and its a pain to flick between them.

I would suggest a 5m scart cable to plug into a TV especially if your are going to move it from house to house.

Isolate the hardrive inside the case from vibration as all that banging on the buttons is not going to be good for it.

Put in a network card as it's much easier for adding new games etc.

As for legs well I got a cheap set of screw in legs from Ikea for

NoOne=NBA=:
The 2x3+1 (7-button) layout is designed to allow use of the 2x3 in standard Capcom format, but also allow 1x4 for Neo-Geo games with a single button layout.



For Capcom you get:

   O O O
   O O O
X

For Neo-Geo you get:

   X X X
   O O O
O

AlanS17:
I agree with markrvp about the joysticks. T sticks have an incredibly short throw. It would feel wierd for fighting games.

As for the motherboard, the mini-itx boards are known for low noise and low heat plus they have a tv-out port. It's pretty much a no-brainer. The only catch is that they're not as powerful as others. But as you increase the power, you also increase the heat and noise. AMD processors, in particular, are known for being hot and loud because they require lots of fans for airflow. Plus those mini-itx boards are tiny. It's hard to beat a 17cm square!

Yes, I'm a mini-itx fan.  :)

markrvp:
I think you can eliminate one of the 4-ways.  All the games that I normally play with a 4-way stick are alternating player (except Karate Champ which uses 4 4-ways for 2-player games).  By staggering the controls you can put two rows of controls like in the diagram below.  I moved the 3 mouse buttons up and left which allows you to use them with the 4-way joystick for games like Galaga, Donkey Kong, Ghosts N Goblins, etc.  You can also use the mouse buttons with the spinner for Tempest.  Your right hand can rest on the panel without touching the Player 1 buttons or the trackball.   I also like to have the center of the joysticks be 7" above the bottom edge of the panel to give plenty of room to rest the heel of your hand during gameplay.

panterafreak:
What about adding 5 buttons for pinball, those just get attached to the Ipac4 correct and mapped as buttons in mame somewhere?  I've used mame before but it was with two playstation controllers with usb adapters ($10 radio shack) and they worked fine.  I haven't tried any pinball games in mame yet but I saw that others had done that with thier cabinet.  Considering my CP is like 36in wide should I even bother, that would be a bit too wide for a pinball feel huh?

In a related note how do i got about mapping buttons in mame?  I assume there is a setting panel or something to set that up but do you need to do that for each game?

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