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Another OK Baby Backyard Paintjob Photo Dump

trashedcabs

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This was one of several summer projects and I'm just now getting to posting it.

We bought a lot of 5 of these OK baby cabs from a collector in Canada who was clearing out their storage. These were at the arcade CHQ in BC, and then somewhere in China before that. They were as expected--yellowed, scratched beyond belief, and very dirty. Some of them had cracks on the control panels. We inspected the condition of them all and I took home the worst one for myself.

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The whole cabinet comes apart into many pieces. I really like this design, but I would later find out it uses SO many more screws than a regular Sega cabinet. Everything got stripped apart and cleaned as best I could.

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I didn't take a ton of pictures of the bodywork process because it mostly happened between other projects. There were holes drilled in the control panel and a very sharp dangerous metal piece was screwed in to "fix" the crack. I removed that crap and used a pipette to drip some acetone into the crack, then at the top of the crack I used a soldering iron to tack it in place so the acetone could properly fuse the plastic back together. It worked great! The next day I used a soldering iron to plastic weld the entire length of the crack, and placed some metal staples in for structure, then I mixed up some ABS slurry (ABS scraps and acetone in a jar) and applied it on the inside and out. I could not break the cracked area no matter how hard I tried. I then used the slurry to fill the holes in the control panel as well as the holes drilled for the security bars.

Once dry, the cracks and holes were sanded and filled with body filler, then sanded again. They were now ready for paint. Here you can see one of the front supports from the inside where I filled the hole with ABS slurry, and what the outside looks like after all is done.

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Paint was a LONG process and I hated it. I have never had a good setup for painting and have always been relegated to rattle cans in the backyard, and to make matters worse I now live in a condo with neighbors that complain and a nosy HOA that loves to threaten fines. I really wanted to pay to get this professionally sprayed, but the only shops that would even talk to me gave me quotes that would have been far more than a mint one of these is worth. If anyone in the PNW is willing to do paint work for me, shoot me a DM. :)

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I did most of this on my patio in a paint tent and used cheap Rustoleum acrylic enamel spraycans. I learned a LOT about painting during this process. Many mistakes were made during all of these steps. The result isn't amazing, but it is all one color and shiny. No more piss yellow. Most importantly, it was also very cheap.

Biggest lesson learned was you WILL get orange peel when using spray cans, and that spray cans are thinned significantly more than what's shot from a gun. If you want a mirror finish you need to spray several more coats of clear coat than you think, then spend the time wet sanding and polishing every part. The best looking parts were done with 6 light coats of clear, sprayed 10 minutes apart, wet sanded with 1500 grit, cut with a DA polisher using a wool pad and 3D ACA 510 compound and then polished with Sonax Perfect Finish and foam pad.

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All the small parts went into the ultrasonic cleaner.

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The badge at the top was pretty yellowed so I decided to try and make a new one. I quickly remade the old Weche logo and printed it on some shiny vinyl paper I had from a previous project. Using some UV cure resin and several tries acheived a sufficient domed result. I also made a custom coin badge design because the factory one is incredibly ugly.

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The control panel was rusty but otherwise in good shape. It got soaked in evaporust then coated with zinc spray for a factory-like finish. The artwork is weird. Seems like an older design which didn't look as good as the later and more common design. A new one was ordered from arcade art repro which was a huge improvement.

It came with Happ sticks in decent shape, but of course we don't want those. I didn't have S plates which would have worked, so the intermediary plates were removed and these Vewlix Sanwa mounting plates we had sitting around were modified to fit. I chose Sanwa clear green buttons and tops. All the disconnects needed to be reterminated with .110 terminals.

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I bypassed the bottom power switch because it was annoying. Why do you need 3 power switches? I also removed the rear AC fan as the double crimp job the factory did was a fire hazard, and it's never going to run for long enough at home to need a fan.

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The original YTE power supply worked fine, but I replaced it with a Mean Well anyway. There was a step-up transformer for the monitor so I bypassed and removed all the wiring to simplify things. The ballast for the marquee bulb was also under the power supply tray oddly enough, so I bypassed that and installed an LED fixture. Finally finished up all the wiring and was able to power it on for the first time.

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These are wired for Chamma from factory. Someone broke one of the solder terminals on a pin, so I swapped it out and gave the bundle of grounds a nice blob at the end.

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Nice! It looks like the PSU portion is largely intact, which seems to be rare. Whenever I see OK Babies, they tend to be gutted and have very sketchy power/wiring inside them.

I would love to own one of these if I can find one that isn't gutted and in abysmal condition
 
Monitor is a Sanwa PFX chassis mated to a shitty Novel tube from an E31S. The tube has some burn, but it produces a nice image. The frame this cabinet uses is unique to the Weche cabinets (and Joyro 29 which was OEM by Weche), so good luck finding them if you're missing them. I lucked out and found two for sale on Xianyu in China, which arrived 3 months later in smoky condition. A quick clean and holes drilled to mount the PFX tray and it was ready to go. I did have to add about 20mm of spacers to push the tube forward towards the glass.

Wanted to give a thank you to 'subman' on neo-arcadia who pointed out that these tubes have an HV feedback pin on the neck, and need a 10M resistor between pin 4 and ground to work on other chassis, otherwise it arcs. https://www.neo-arcadia.com/forum/viewtopic.php?t=80997&sid=2170bbd2d0ceec3557eb7e8f3dac2313

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I ripped out the OEM amplifier and replaced it with a line output converter and a Logitech computer woofer/amp combo I found cheap at a thrift store. I do this on all my cabs and it's the biggest quality of life upgrade IMO.

I needed side art, so I scanned and redrew it. Annoyingly, the variant of the cabinet I have uses a mix of teal and green. I printed and applied the teal version at first, but the mismatched colors were bothering me, so I removed it and printed it in green.

Here's the final result of everything:


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