MAME on Naomi Net City

Discussion in 'Arcade and Supergun' started by aryssoR, Feb 22, 2009.

  1. aryssoR

    aryssoR Peppy Member

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  2. aryssoR

    aryssoR Peppy Member

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    The trouble with having what is essentially a PC in a sealed box with very little ventilation is that it generates a fair bit of heat.

    It would not be overstating the point to say you could fry eggs on the base after a couple of hours' gaming, even the locks get red hot.

    So I've opted to improvise some airflow.

    The biggest problem is getting the hot air out of the case, the cool air will find its way in from every nook and cranny, and there are a few air vents on the Naomi case as is.

    I don't want to start cutting holes in the base, so my only option is really the rear panel

    [​IMG]

    [​IMG]
     
    Last edited: Mar 29, 2009
  3. aryssoR

    aryssoR Peppy Member

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    I drew up a fan assembly using the removed panel as a template for measurements

    [​IMG]

    I originally intended to cut this from plate steel, but quite frankly it's more hassle than it's worth, so I looked at other options and eventually chose acrylic perspex. It's so cheap and so easy to work with.

    A local art shop was selling 40cm sq x 3mm thick sheets for £3. I chose a lovely Naomi orange :nod:

    [​IMG]
     
  4. aryssoR

    aryssoR Peppy Member

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    The panel is 52mm high, so 40mm fans were ideal. Maplin only had 2 of any one type in stock :banghead: so I had to work with what they had.

    [​IMG]

    I'll replace the lower airflow fans when they restock

    [​IMG]

    I've mounted the panel outside because there are two raised bolt threads on the inside, so it wouldn't sit flush. (you can make them out on the picture of the case with the panel removed above)

    It's mounted on some of those little silicone washers to cut down the vibration

    [​IMG]

    THE RESULT:

    The case temperature is much more safe now. There is still some warmth near the front, but not anywhere near as scary as before. I think the higher airflow fans will help that too when installed. I could theoretically have put a fan on the front door, but as I mentioned before, I'm trying to keep the cab as close to stock as possible. I definitely wouldn't want to make any permanent alterations.

    THE NOISE:
    4 x 8000rpm fans are noisy no doubt, but it's bearable. In the future I may possibly add some soundproofing if it bothers me enough, but for now I'll crank up those car door speakers :020:
     
    Last edited: Mar 29, 2009
  5. aryssoR

    aryssoR Peppy Member

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    Minor update on my ongoing cab project...

    Two minty fresh JLFs arrived today from gremlin

    [​IMG]

    I replaced the one green button on the CP that wasn't a Sanwa to make the full set, although I'm most likely gonna buy the Seimitsu skellies that mach the bubble top colours next month. These Sanwa buttons will be useful in future arcade stick mods tho :evil:

    [​IMG]

    Mmm yummeh... octagonal gate goodness...

    [​IMG]
     
  6. Parris

    Parris I'm only here to observe...

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    this machine is coming on a pace...

    Good grief, I want a shot!!!
     
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  7. aryssoR

    aryssoR Peppy Member

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    Hehe, we'll have to make that happen!
     
  8. aryssoR

    aryssoR Peppy Member

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    Probably the last update for a while on the Naomi. The VGA cable developed a fault, turning the screen purple, I assume because of a loose G connection so I switched in a new one. It's really surprising how much it has improved the image quality (as well as fixing the purple hue of course!). The geometry is better and pixels are sharper

    And I got those Seimitsu skellies...

    [​IMG]

    ...and without the flash

    [​IMG]
     
  9. retro

    retro Resigned from mod duty 15 March 2018

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    Hehe, chavved up arcade cab! They look pretty cool, though.... probably quite a good effect in the dark! Do they make illuminated sticks, too?

    Was the replacement VGA cable a better quality one? You can get quite a difference just by using a quality cable. That, and only using the length you need.

    Good stuff, well done!
     
  10. aryssoR

    aryssoR Peppy Member

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    They make hollowed shafts that you can put an LED into, but it means drilling a hole in the bubble-top from inside the thread. So far I haven't seen the hollowed shafts for sale over here, so never thought too much more about it. At the moment it's hard enough tracking down JLFs and seimitsu buttons, never mind the rarer parts.

    Difference in quality is debateable. I assume it was better quality because of the picture improvements but to look at them it's not so easy to tell. Maybe it was just the age of it, the replacement was not as old. The new one has an iron bead on both ends at least

    Old one on the left, replacement on the right

    [​IMG]
     
    Last edited: Apr 17, 2009
  11. retro

    retro Resigned from mod duty 15 March 2018

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    Hmm, I can get Sanwa and Seimitsu parts. Maybe I should start stocking them...
     
  12. aryssoR

    aryssoR Peppy Member

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    The demand is huge for them right now thanks to SFIV. JLFs sell out pretty much as soon as they are stocked.

    The pink skellies I paid way over the odds for because I couldn't find any in the UK so bought them from Starcab.

    So yeah, maybe you should sell them!
     
    Last edited: Apr 22, 2009
  13. PSPdemon

    PSPdemon Peppy Member

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    Sorry to revive a old thread... but out of curiosity, how much does a Net City cab run for? ( I'd love to build one of these...doesn't seem like they would take up much room )

    Thanks!
     
    Last edited: Jul 21, 2009
  14. Parris

    Parris I'm only here to observe...

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    The Naomi cabinet you are looking at was never made available in the USA. It was a Japanese & European only model, so you are sadly going to have to look for an import or go to the vast expense of importing one yourself.

    There are a few USA members of www.sega-naomi.com who often trade / swap / sell their hardware and they may also have more accurate information on where in the USA you could lay your hands on one of these.

    Not sure of US prices on these. One or two US owners here, including Borman, perhaps you could ask him? :nod:
     
  15. PSPdemon

    PSPdemon Peppy Member

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    Hmmm, I might have to look at making a clone of it. :)

    Thanks for the info though, I'm guessing with as heavy as the unit could possibly be it would cost alot to have it imported.

    Anyway congrats on your naomi mame cab! I really like it and plan to make something like it in the near future.
     
  16. Parris

    Parris I'm only here to observe...

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    They are very heavy. Consisting of a 29" CRT, heavy duty metal frame and a solid metal base.

    It's not my Naomi Mame, it's my ex-Naomi and it's my mates set up! He's far better with MAME than I am, as I've literally only really taken any interest in MAME and primarily so I can play titles of games I have purchased in the past.

    Good luck!
     
  17. iliverockband

    iliverockband Spirited Member

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    pspdemon, I see you are in Florida too. Search for Florida Arcade Collectors on google. Candy cabs are available on their forums some times. You might also find a naomi set up for virtua tennis at some of the auctions. I found one in the Orlando area.
     
  18. PSPdemon

    PSPdemon Peppy Member

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    Thanks for telling me about that :thumbsup:

    I'll keep and eye and hope to get one!
     
  19. aryssoR

    aryssoR Peppy Member

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    Naomi prices on hardware seem to run a good bit higher in the US than here in the UK, that might be something to do with what Parris is talking about.

    As for weight, it weighs about 118kg it's not like you'd post one of these, I assume it would be done to how much pallet shipping costs or the like, but will still be very spendy no doubt.

    Although they can be almost completely dismantled, the monitor alone weighs about 40kg+, and the base not far behind that

    I have heard tales of people importing cabs by air freight where weight is more of an issue, and paying over $1,000 in logistics fees.

    The sensible route is to find something locally, so your choices might be limited, I was just very lucky to find exactly the cab I wanted very nearby.
     
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