Main > Project Announcements
Naomi Projects - Update : PCB Holder
thatitalian:
Uhhhhhhhhhhhh, very nice! Any chance you will be making a few extra for sale?
Franco B:
Not unless you want to spend crazy money.
You need two buttons to make one and Seimitsu buttons are not exactly cheap. The KN's are about £2.50 each. The K's that you need to steal the plunger and micro from were about the same price but you cannot buy them anymore as they are discontinued and they are the only button I know with the long plunger that you need.
Luckily I managed to secure the remaining stock of Ks from arcadeshop.de :)
Then you have the price of the black Nylon, cost of machining that, cost of machining the other parts, assembly, LEDs etc.
Basically you would be looking at about £20 per button provided you wanted 6+
rablack97:
wow, too rich for my blood for a button....but regardless of price they are a work of art.......... :applaud:
Franco B:
I'm now working on my main Naomi project.
My main aim for this project is to be able to run all of my games though my cabinet. To do this I need to be able to support Naomi Carts, Jamma PCBs, MVS Carts as well as being able to play Xbox360, Dreamcast, Saturn, MAME etc.
Seeing as there is a lot of hardware to deal with and that there is no chance of fitting it all in the cabinet I have decided to only have arcade hardware in the cabinet and then have an I/O board on the rear of the cabinet to interface the consoles/PC etc.
This is the inside of the cabinet originally:
You can see the transformer in the left hand corner, Naomi mobo in the middle and then the Sun ATX PSU and Sega amp on the cradle above.
As you can see there isn't actually a lot of space to pay with in the first place but I would also like to be able to run Jamma PCBs and MVS carts in the machine.
I am plannig on arranging the components like this:
I'm going to remove the cradle and move the Sun ATX PSU and Sega amp to the rear of my cabinet to give some extra height to play so I can build a two stage tier for the Naomi mobo and Jamma PCBs to sit on.
I'm going to bring the transformer forward a little so that I can mount the MVS one slot behind that.
The Naomi is wired to the JVS standard and to be able to play Jamma games I need to use a converter and so I bought a Namco Jamma>JVS convertor. The 1 slot MVS mobo is also Jamma wired and so will work with the convertor.
I have been working on the two stage tier for the last couple of months on and off and this is what I have come up with:
It consists of two tiers of acrylic. Each tier is made three 5mm sheets, one white and two clear. The tiers are supported by some columns made from stainless steel, clear acrylic tube and white Delrin.
The item on the bottom tier is a decased Naomi motherboard. I had to decase the motherboard to reduce the height required between the two tiers so that it would fit in the base of the Naomi. I added a fan in an acrylic enclosure to keep it cool.
The top tier holds PCBs. I made two sliding clamps so that it will hold my smallest and largest boards whilst keeping the Jamma edge at the rear of the holder.
The vertical PCB attached to the top tier is a Namco Jamma>JVS adapter. Its mounted vertically due to space constraints.
Here are a couple of photos of the holder in the cab:
As you can see I have removed the PSU ATX/amp cradle to allow the holder to fit. The PSU and amp will be relocated to the back of the cabinet on an acrylic base. The transformer will be mounted to an acrylic base and a one slot MVS mobo wil sit behind that.
I mounted a Jamma fingerboard to the bottom of the PCB holder as you can see here:
The fingerboard will be wired to the MVS mobo so that I can swap between Jamma and MVS by moving the edge connector of the Namco adapter to the mounted fingerboard.
The dimensions of the holder were quite tricky to determine as it needed to be tall enough to swap Naomi Carts but short enough to fit in the base. It also needed to be long enough to hold my largest PCBs but not leaving space at the rear of the cabinet for the other components.
It will just accommodate the largest thing I plan on running, CPS2 boards:
Here are a few other random photos from the build:
The stainless steel parts were CNC turned. Everything else was hand routed.
There is still ---steaming pile of meadow muffin--- loads to do in the project but the PCB holder was quite a large part of it and I can get on with the next parts now :)
Kman-Sweden:
Bloody hell. :applaud: Fantastic!