NEO GEO Evolution (EVS-1) - Experimenting with DIY trackball

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BadMouth:
The subwoofer thread got me excited.

I won't bother writing three paragraphs about how I arrived at this design.
There wasn't enough room under the cab for it to be down-firing.
Having it centered in the rear would have interfered with mounting the coin door.
In the end, I think this was the best use of space.

I had already cut out the pieces for a removeable box, but decided it was going to be too much of a pain to remove and was kinda pointless.
So I utilized the walls of the cab.

(removed the back door so it could be redone with cutouts and grill mesh)

The sub is a shielded 8" Dayton SD215-88. The shielded version is no longer produced, but a never-used one turned up on fleabay for $10 + $10 shipping. I usually just use PVC pipe for ports, but decided I'd try a flared port since I was already placing an order at parts express for a sub amp.
They had a 70w plate amp on sale for $50 that is a good match for this speaker. Ended up with just under $100 in everything.

The enclosure is 1.9 cubic feet and tuned to 30hz.
It sounds surprisingly deep for an 8" sub and will go louder than I will ever need it to.

Another concern was that I still needed to be able to mount the coin door without being a contortionist.
Everything else will be mounted on the other side.

I've put off doing the final finish on the shroud for the main speakers until I worked out how it will be mounted.
Finally decided on magnets so it can be repositioned slightly and more precisely than velcro.
Just epoxied the magnets on this evening, so I should be prepping that for paint next time.

I'm antsy to get this thing wrapped up far enough to paint the inside so I can go ahead and mount the speakers and amps!
The marquee retainers, marquee plexi, & the brackets that will support the bezel glass were done weeks ago,
so the whole top end will come together quickly after paint.

The main holdup is the area behind the CP that will be exposed when the CP is shifted, and the area between the CP and bezel glass.
I've got a lot of things going on in those areas and everything needs to be serviceable.
I built a CP a couple weeks ago, but something is a little off. It's like the whole box is twisted. It doesn't sit on the cab quite like it should and the top doesn't sit flat on it. There is really no choice but to redo it.

DaOld Man:
3 words:
Damn it boy!

BadMouth:
Still been chipping away at it. Hopefully I'll have a major update after this weekend. ;)

Speaker shroud came out with orange peel the first time around, so I waited the prescribed 48 hours, sanded and repainted.
It turned out pretty good this time, except for a spot on the lower right corner. There was some kind of contamination and the paint shriveled up on contact. :angry:
No idea what it was because I only used water to wet sand and alcohol (not rubbing) to wipe it down.
At any rate, it's wait another 48 hours, sand that corner and try again.

This is still a WIP, but here is the direction I've decided to go for the marquee and CP.
In my head, I've always referred to it as an EVS-1. ;D

I couldn't come up with a version of the "the future is now" marquee that I was happy with, so I went back to basics.

I'm open for suggestions on the marquee.
(I already know alignments, etc. aren't perfect. Looking for ideas to make it look better)
I was trying to come up with a clever substitute for SNK, but couldn't think of anything.

GIZMOGAMES:
why not go with
EVOLUTION

for your marquee it has a great sound to it or ring :D
and do it neo font :)

05SRT4:
just watched the rotating vid!! :notworthy: :notworthy: :notworthy: :applaud:

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