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View Full Version : DC MAME to PC MAME project



christianscott27
10-28-2003, 11:23 AM
once again i've had the good fortune to get some vital parts donated to my MAME project, toddst gave me an older dell PC from his cellar collection. this spurred me to go from dreamcast based MAME to PC MAME.

the backstory of the project is that around 2 years ago i made the DC MAME cab. to my knowledge i was the first geek to do so but at any rate i was pretty proud of it. using MAMEdc, a VGA box, a giant castoff monitor, radio shack speakers, a junk cab i restored to jungle king and a DC controller board wired into the arcade controls i was set! i'm not a carpenter or engineer type, i get an idea and run with it proper parts be dammed, so it was a good looking spit and tape project.

the DC mame is actually pretty decent and not too buggy, runs decently on all of the older games, the menu is not horrible either. the problem was the control, despite diligent soldering and hacking there was no nice way to make a modern console respond right to a 4 way arcade control. everytime i had guests over to play it everybody wanted to play ms.pac man, and on the fast mazes the limits of the controls were painfully obvious.

so this week i began in earnest working on the PC project, slipping a nice little DC inside a cab was no mean feat, fitting a big ol' tower in was! in order to avoid the control issues i used an ultimark IPAC, a device that connects the arcade wires to the keyboard input while translating between the two, thats the most expensive item used ($40). once the MAME was installed on the PC it was time to test out the controls and ...the hair pulling began.

i was lost so i called up the always helpful todd and we went about debugging it over a 6 pack. after a frusterating hour or so we figured out that the control issue was leaf switch vs microswitch (two different joystick detection styles) a few wires were exchanged and all was well. todd toook off and i decided to take advantage of some wife and child free time and finish the project that night...up until 330 AM yikes.

i did a few idiot moves like plugging the speaker in the wrong jack and then sealing the cab up :frustrated: . a few open heart surgery adjustments on the hardware and a hell of a lot of grunting under the monitor and it was done! i still have some issues with the monitor positioning but i'm ready to let it be and just enjoy my cab. one of the things thats harder about using an authentic arcade cab is that you're jamming things into a box that was not designed for them, thus the monitor is about a half inch off from prefect....ah well your eyes slide over that when gaming :roll:

now i'm ready to enjoy my new toy, a faster, tighter version of the DC mame. i love MAME cabs and suggest everyone who has the space look into making one. once you're standing up, slapping the buttons and cranking the joystick its beyond emulation and right into the arcade. with a little luck and labor it can be done for under $100.

Todd S
10-28-2003, 03:18 PM
6 pack? You only had 4 beers in your fridge. Cheap bastard! Seriously, with the Ultimarc IPAC (http://www.ultimarc.com/), a MAME cab is simple to make and I highly recommend that anyone who is curious (and has the space) should give it a shot.

-Todd

chadtower
10-28-2003, 03:22 PM
Yeah, sometime in 2004 I definitely plan on building one. I just have to find a 25" cab with good monitor.

Flack
10-28-2003, 08:58 PM
Mine's chugging along. I just mounted my spare 2ghz motherboard on the side of the cab and the power supply where the old arcade power supply used to be. After I post this I'm shutting this box down, stealing the spare 30 gigger out of it, and loading 'er up.

christianscott27
10-28-2003, 09:36 PM
i opted to keep all the parts inside the tower, because i hate messing with that stuff and i plan on upgrading it from time to time. i have the CD drive accessible thru the coin door so i can load up other emus when i'm ready for a change.

my advice, which i didnt follow is plan, plan, think of the total package closed up before you do anything...so many little things i overlooked last night and this is my 2cnd one. get the ipac, its very nice and easy to work with.

maxlords
10-28-2003, 10:05 PM
MAME? On the DC? Explain?

ChuckthePlant
10-28-2003, 10:11 PM
http://www.dcemulation.com/ has it all. Check it out, a bit buggy, but a good start.

sisko
10-28-2003, 10:12 PM
Im getting closer on mine.

I finished rigging a new fluorescent light and pc speakers, so the entire top section is complete.

All I need now is a 19" monitor, the control panel, and tools to build it with. :)

Its a fun thing to do when you're bored and don't want to play games though.

Flack
10-28-2003, 10:38 PM
One of the biggest problem I'm having is the cabinet I'm using is an old Dk Jr. cab (it was trashed before I got it) and it only has one speaker slot! I don't know where I'm going to put two speakers at!

I've already got my iPac and everything else. More work tomorrow ...

christianscott27
10-28-2003, 10:54 PM
try putting it under the control panel by the coin door, the cab resonates and it gives thunder to the game play :)

chadtower
10-29-2003, 10:35 AM
One of the biggest problem I'm having is the cabinet I'm using is an old Dk Jr. cab (it was trashed before I got it) and it only has one speaker slot! I don't know where I'm going to put two speakers at!

I've already got my iPac and everything else. More work tomorrow ...

If the cab is trashed, then just replace the panel that has one speaker slot and put in one with two speaker slots. It's just some pieces of wood!

Sometime next year I'm definitely going to be getting a cab to MAME. I'll probably end up replacing half of the particleboard panels so as to reconfigure things like this. The big thing I want is to replace the floor with one that has an opening for a downfiring subwoofer. That should seriously resonate with a cab that big...

sisko
10-29-2003, 03:59 PM
One of the biggest problem I'm having is the cabinet I'm using is an old Dk Jr. cab (it was trashed before I got it) and it only has one speaker slot! I don't know where I'm going to put two speakers at!

I've already got my iPac and everything else. More work tomorrow ...

This was a sizable problem for me too. I wanted to replace the fluorescent light with one from Home Depot, that way I could just plug it into the outlet.

The cab I am using had one slot for a 6x9 speaker, which again you run into the problem with powering it. I guess that wasn't so bad because I wanted to get rid of it anyway. (20 year old paper cone....yuck).

I was going to replace them with PC speakers, but the main problem is that they were all to big! Sure I could fit them behind the marquee, but then none of the liight would show through! I couldn't put them inside the cab because the sound would be muffled and deadened!

I did some research and found two really small sets of speakers. the Kinyo SA201 and Cyber Acoustics 3001. Kinyo are a decent size.. 5X6, but only 3/4" inch thick (assuming the bases are detachable). The Cyber accoustics are much thecker, but smaller in general. I went for the Cyber Acoustics primarily due to the fact that I only had to drive 5 minutes, not 35. Everything fits perfectly (as long as I dont need in there again) and the light still shines through.