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Arcade Coffee Table: I had a dream

November 10, 2017 10:55 pm
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Reading Time: 8 minutes

I can’t remember when it was. It was at some point. I know it had to be some point in time. Dates aren’t important. Maybe was like a year ago?  Two? Go with that. Two years ago* I had an idea and an epiphany. Had I had this idea for a while? It’s likely a teenage me daydreamed this thought but it got buried under a thousand hangovers and a thousand more comedowns through my twenties. But then, for some reason a two year-ish time ago a daydream bubbled back up, gestating into an idea, a plan.x

My idea was that it would be totally cool to have an arcade machine of my very own. I love retro gaming, it pings the good nostalgia parts of my brain. The graphics, the sounds, the cabinets, the consoles. The cartridges with the exquisite artwork, which my childhood brain could never understand how they could make such fantastically detailed artwork fit onto such a small canvas. I’ve figured it out in the ensuing years.

My epiphany was that if I put my mind to it, nowadays, now that I’m a proper grown up and that, I could actually build one.

And so I have been doing. Sure, I’ve now taken a few months break in between my last burst. I’m a busy guy! I have multiple plates barely controlled, spinning at a significant rotation and slinging food everywhere constantly. Hopefully me scribbling these notes down and posting them into the vacuum of the Internet will inspire me to continue.

I took notes and photos and that so with a bit of luck if you’re reading this & like what you see, and I can be bothered to write a tutorial, you too could go from a flat pile of wood like this:

Arcade coffee table wood

To something a little more arcade coffee table like.

Y’know a bit more like this…

Raspberry Pi Arcade Coffee Table

Excited? me too. Lets get started by chatting about why I made a few of the decisions that led to this design, so you can choose to riff on them for your own designs where appropriate.

Arcade coffee table design decisions

I made a number of significant decisions for the arcade coffee table early on. On key point I’d stumble into through serendipity later.

  • Design decision number one:
    First up, an easy one. Why a coffee table? Well, my missus isn’t what I’d call “bang into” video games. So design decision number one to get planning approved means this needs to be something that isn’t overwhelmingly video games-y, something quirky, unique, maybe with another purpose. A coffee table. Genius. It could sit in the lounge and she can put stuff on it, or in the conservatory as a talking point when we have guests.
  • Design decision number two:
    this thing needs to be relatively simple to make because, it turns out, I am shiiiiiiiiiiiiiiite at the noble profession of carpentry. Ah well, can’t be perfect at anything.
  • Design decision number three:
    It needs to be as tall as average knee height so that it’s high enough that your arms are resting correctly whilst playing. I’m thinking about a reverse gorilla arm style effect almost. The body needs to be in as small a hunch as possible to allow for comfortable play by the user over an extended period of time and forcing the users hands  below the knee would force the body forward into a hunch.
  • Design decision number four:
    It needs to be a two player device. Half the fun of arcade games is playing with a friend but a four player cabinet in a coffee table shape would be ultra massive if you wish to fit everyone around it. Besides, where we’re going we don’t need space. We’ve got bluetooth!

initial sketch of arcade coffee table original plans
These decisions formed the basis of my early first scribble of what I thought it would be, located above. Proportionally, not a huge amount has really changed from that first pure guesstimation I made whenever it was. Which is quite interesting, for me? I guess?

Prototyping my arcade coffee table monitor stand

Design decision number five

So important was this decision it warranted it’s own H2. This decision informed a lot of the final form factor.

My serendipitous moment came when, whilst in an early stage of prototyping, I discovered that the 4:3 monitor I had ordered didn’t come with the worlds greatest viewing angle. High glare was visible when the screen was viewed flat from above at the angle you would play at on a tabletop style coffee table. So I accepted this as a limitation to work around. My solution was the mount the screen at a 45 degree angle.

monitor stand in-situ in my arcade coffee table

This turned out to be a great solution, there was a trade off that became more evident during build but more on that later. The prototype stand I made ended being the part I used inside the finished arcade coffee table. As mentioned earlier, I’m not particularly good at carpentry. So once I’ve built it and it works; it stays in. The finished result works well, although to ensure good view for the user, I had to create a corresponding diagonal on the opposite. Painting the entire interior area matte black ensured minimal glare on the glass from any reflecting light. This creates a nice seamless black square effect for the viewing window when the device is off as well.

Arcade coffee table view through glass at screen

I designed the central console to be removable from the rest of the arcade coffee table. The idea here is so it can literally be used as a table. There is a spare, unpainted lid in the front drawer.I thought is would also be useful in making sure potential crime don’t know it’s an arcade machine if people came to burgle me. Rule one: Crime never takes a holiday. So it’s easier to hide with no joysticks poking out.

Hardware and software

The Arcade Coffee Table, hardware wise, is powered by a Raspberry Pi3. Real nifty little things, I recently used one to build a PiGrrl, which is a Gameboy style emulator. The emulators are powered by a frontend called RetroPie. Absolutely fantastic. If you use their software please think about donating. Setup is very easy and even beginners can do it. In fact this was a project that I didn’t use any soldering. Audio is handled via a usb SoundCard I got for the Pi, running to a mini-Amplifier off Amazon and some car speakers I got from Halfords. When one has to busy themselves with the dangerous task of nearly chopping one’s dick off with a power saw, it’s refreshing to not have to spend one’s evenings swearing at the soldering iron too.

Above is a video I shot very early into prototyping with a early prototype control board. Just to give you an idea of how these emulations play in real life. The setup was a bit wobbly here, but I assure you, in real life, this thing plays great. Listen to that lovely authentic arcade click. Ahh, takes me back.

Building an arcade coffee table

Arcade coffee table marked up and drilled control panel
The wood work process for me was a slow, methodical procedure. Power tools invite danger and once invited, danger is attracted to me. Never the less I persisted and generally I had a good result. A tip for anyone wanting to make anything like this is that you can get simple shapes cut from larger boards from B&Q. So i just went in there with a where I wanted my cuts making and generally got the right sizes back. Below is a build diary I guess? It’s the photos I took as I was building it. Let’s call it a build diary.

In total I created three control panels. The original prototype that can be seen above. A second board I had to scrap when I’d got my diagonal front view panel size wrong and my own board-cutting to resize it went less than perfect (this is quite a visible board, so I didn’t want any defects).

The joystick placement I got from a site rather wonderfully called slagcoin which has some really good write ups on joystick placements. I went with SNES button colours for the first 4 as a visual reminder of that layout. Buttons, sticks and connect bits can be bought from Arcade World. They feel great. Like the real thing. I also used those guys to buy the vinyl corner thing that wraps the edges for that extra arcade feel.

close up of right side arcade coffee table finishing

Artwork

The side artwork is a custom design I pulled together from as many high-res assets that reflected my memories of gaming that I could steal from the Internet as possible. Well and that worked cohesively visually with the other elements that is. Unfortunately this combination of restrictions meant that I struggled to find assets for some of my favourite games.

Luckily, the strong primary colours of early Nintendo games really work well with those SNES buttons and the white and black theme puled through allows the colours to really stand out.

The design, shown in full below, meant that I could run out two copies and give each side of the table a distinct graphic. Especially as by then I knew the table wouldn’t be fully out on display. The two vinyls I got printed from Dock Street Signs in Leeds.

Arcade coffee table artwork

At the moment, I’m weighing up what to do with the top panel. I’m treating it like a sleeve of tattoos I’m building up slowly. I want to see how the rest settles out first.

 

Work still to do on the arcade coffee table

The front compartment flips up and reveals the inner workings of the arcade coffee table. Most of this is in good shape, it’s all painted, last jobs are to hide the electronics. When I’ve updated that I’ll update this with some images.

Regrets with the finished design

The decision to work with the angled monitor came with one significant downside. Lots and lots of extra wood. In the original sketch you can see that I wasn’t accounting for all this. And wood means weight. So this particular arcade coffee table is heavy and big. It’s big wide too. It might be overly big. It’d be great in a room with an L-shaped sofa though. Alas that is not my house.

The only area where it’s not too big is in the feet. The choice available to me at B&Q meant my arcade tables legs are about 4 inches to short for the users arms to naturally rest there. I aim to rectify this at some point when I find appropriately sized legs.

Coming One day?

I’ll tell you how to make this yourself. I’ll probably make this tutorial sooner if people actually are interested in making one. If no one cares I probably won’t. I’ve got other projects to do!

 

This joint was penned by @elmarko

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