Arcade Machine HOWTO
Page 3
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Step 7:
Practical uses for a PC

Time to mount the monitor and computer permenantly inside the newly restored arcade machine shell. Have to make it pretty sturdy, since the machine's going to be the center attraction at many drunken parties.
The monitor without it's protective plastic covers. Don't touch the end of the tube, it's bad for the monitor and you :)
arcade34.jpgI've put the newly black front cover back onto the monitor tube, and fitted it into the plywood piece. Nothing actually holds it in, other than gravity and much friction.
(Don't tip my arcade machine upside down :)
arcade35.jpgYou can see how safely the monitor just hangs in the arcade machine. Good thing I'm an engineer, otherwise I wouldn't have been able to design it this well. (Even better thing I've got so much string and electrical tape lying around :) arcade36.jpgYou can see how the string supports the PCB.
Down with gravity!! Down with gravity!!
arcade37.jpgTest Run!With the monitor and sound system in place, I powered it all up with the computer sitting outside at my feet.
The sounds of computer games brought the neighbourhood kids flocking to the keyboard.
arcade38.jpgHere is the PC inside the arcade machine. I've screwed it down through holes in the bottom of the case. Should be pretty sturdy.
arcade39.jpgYou can see the power supply sticking out the back of the case. This is because I used the AT power supply (matching the case) for the power to the amp. I got an ATX power supply for the computer, which means I can do soft-off and nice power management things. The AT supply also pumped out a bit more power for the amp than the ATX could.
arcade40.jpgSince the ATX power supply wasn't designed for the AT case, it didn't fit. I managed to put a screw in the bottom, and affix it to the case, and strapped the front in with zip ties.
Since the back stuck out so far, a normal 180degree IEC plug (normal computer power lead) wouldn't fit - I couldn't close the back cover of the arcade machine. damn....
arcade40a.jpgI had to get one of these 90 degree ones. They are very hard to find. After looking in numerous computer and electronics stores, I finally found one sitting behind a shelf at Buranda Dick Smiths - They aren't in their catalogue though.
arcade41.jpgHere it is from the front. You can see the AT power supply over on the right.
Hrrrm, having those dirty great big speaker magnets so close to the computer can't be all that good. Perhaps I'll have to do something about that.
arcade42.jpgNow you see the computer........... arcade43.jpgNow you don't!
Step 8:
Buttons, Switches and Joysticks

I had a couple of ideas of how to wire up the arcade controls to the computer.
1) Wire them into a joystick port.
2) Wire them into the keyboard key switches.
I eventually decided to wire them into the keyboard, althought it was harder, it meant I could use a normal gamepad/joystick plugged into the gameport for the 2nd player. I also want to put a touchpad up on the control panel, to use as a mouse in Windows, when the machine is in Jukebox mode :)

arcade44.jpgI thought it might be a good idea to replace all the buttons and controls too, since the originals were so old, and a tad loose and unreliable. Here are some new Happ arcade controls I bought off a local pinball repairer -
The Pinball Specialists
Mark Schneider
Ph. (07) 3371 4841
Mob. 0438 113 632
arcade45.jpgUnfortunately, the new controls won't fit through the old control panel - the panel is too thick :(
So this entire control panel is throw-away. I'll save the microswitches though.
arcade46.jpgThe new control panel I made, since it's thiner, had to be lifted up and supported around the edge. I used some foam rubber for this, and ran two layers of it around the edges of the well.
arcade47.jpgIt's made of polycarbonate, we happened to have a sheet of it lying around. It's kinda expensive though, this piece is proabably worth around $20. It's nice and strong though. It should be see-through, but I scratched it too much when I was cutting it.
I also left some more space on the right hand side for the touchpad that I'll get eventually...

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