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Gauntlet Legends Cabinet Build

 

Here's some info and pictures of the building of my Gauntlet Legends cabinet.

I bought all the electronics from a Gauntlet Legends arcade game. I got the 38" monitor, the complete control panel and all the electronics. What I didn't get was the cabinet, as the seller wanted to turn it into a MAME cabinet.

I decided to build a cabinet for the parts. It's been about 4 years since I've built a cabinet from scratch. The last cabinet I built was a regular upright game, this cabinet will be a "showcase" podium type. I downloaded plans from www.jakobud.com, but the measurements contradict themselves. I decided to use the plans as a style guide, but just wing it on the measurements.

My main concern is weight. The monitor must weigh a couple hundred pounds. I'm worried about being able to build a cabinet that's strong enough without weighing a ton. The style cabinet I'm building will be able to come apart into 3 sections - the monitor stand, the monitor surround and the control panel podium.

I'm making the cabinet out of 3/4" particle board with 1x1 reinforcing strips.

I just installed a compactflash adapter to eliminate the original hard drive. Here's a page that shows how I did it: FLASH!

 

Click on images for bigger pics:

Monitor stand side panel. The round corners at the bottom were made with a 3" hole saw.

This is the side panel with all 1x1 reinforcements attached. I made 2 shelf supports and the base with 1x2 reinforcements. The 2 shelves are also shown, along with the end pieces.

The holes in the shelves and the one end piece are to allow wires to pass through.

Here are 3 sides glued and screwed to one side panel. You can see the hole in the base for the wires to pass through.
A different view of the above. Here you can see the side panel and both wire pass through holes.

I have now attached all 4 sides of the lower section. I decided to glue in 4 2x4's to add extra support for the weight of the monitor. After this picture I glued and screwed in the base piece.

At this point, I haven't decided whether to add leg levelers, wheels or carpet sliders.

Here you can see how big the monitor is. The stand is now done, although the door isn't shown.
Side view.
Back side.
Inside view with lower shelf removed.

Final shot with lower shelf in place. I sat on the stand, and I think it's going to hold the weight just fine.

Here are the parts for the control panel stand.
I've attached the bottom, sides, top and front. The hole is for a coin door.
Inside view of the above picture.
Side view, showing the construction of the angled part. I'm not sure how I'll attach it to the monitor stand. Most likely bolts will go through the open area.
Complete assembly. I'm not sure how I'll attach the control panel either. I think I should have made a flat top piece. I may have to do some modification here, but we'll see.
Completed front view. Here you can see the hole in the bottom that lines up with the one in the monitor stand. the wires will pass through the hole from the PCB shelf in the monitor stand to the control panel.

Here I've placed the control panel stand next to the monitor stand. I haven't yet made them attach to each other.

Please excuse the mess, I'm out of room and am using the cabinet for parts and tool storage until I get some more room.

Here's how I made the rounded edges for the monitor surround. I drilled 2 holes in the stick. One hole has a screw inserted so the stick will pivot. The other hole is just big enough for a pen.

You then put the pen in the hole and slowly draw the curve. I then used this piece as the master to cut all the other curved pieces.

I was having trouble wrapping my head around the measurements to make sure I used as little wood as necessary to make the top and bottom of the monitor surround. I made a template out of cardboard to verify my measurements, then copied it in paper to make sure I could cut 2 pieces within 48 inches of width.
This is the monitor placed on top of the base of the monitor surround. It looks like my measurements were pretty good.

Notice that the monitor chassis is off center. I don't know why they made it like that, and I had to adjust my measurements once I noticed it.

I may cut some off the back of the piece, as it's a bit deeper than it needs to be.

This is just a test fitting, none of the pieces are glued together at this point.

I drilled a couple extra holes in the lower monitor bracket. The plan is to have 3 bolts holding the bracket to the base of the surround, and 4 bolts pass all the way through the bracket to the inside of the cabinet.

This will allow the surround to be removed from the stand, while the monitor is still mounted in the surround.

The monitor surround is finally built. I still need to figure out how to hold the plexiglass in front of the monitor. The rectangular hole is where the monitor wires will pass through into the monitor stand.

I've placed the monitor surround on top of the monitor stand. The surround isn't that heavy without a monitor in it, I was able to place it there by myself.

I had to bolt the monitor bracket through the surround and into the stand just to keep it there, as the empty surround is back heavy. The monitor has most of the weight in the front, so once it's in there the balance should be centered on the monitor stand.

Angle view of the major assemblies in their proper places.
Side view of the pieces placed next to each other. At this point, I haven't bolted the control panel stand to the monitor stand. I have come up with a way to do it, I just haven't had the time yet.

That's a big relief! The monitor fits in the surround just right. I've got enough room for the plexiglass with no problems.

I've temporarily placed the piece of wood that will hold the plexi curve in the bottom of the surround. This piece will have to be screwed in after the monitor is in place as there isn't enough height to fit the monitor in with the wood in place. There will be one on the top as well as one on the bottom.

I made an access hole in the back, but it may not be big enough. I'll need to get my arm in far enough to connect the monitor wires to the games wiring harness.

I may be able to use a coat hanger and snag the wires from inside the monitor stand.

I had made the surround deep enough to allow some spare room behind the monitor, but when I placed the surround on the stand I didn't like how deep it was. I ended up cutting off another 2 inches, and you can see from this picture that the chassis is almost touching the back.

Here's a picture of the power supply mounting. When I took this picture I hadn't yet secured the wood blocks to the cabinet. I've cut a square opening in the cabinet that will allow the power supply to stick out flush with the back of the monitor stand.

I cut a hole for the fan just above the power supply. I'm planning on having it draw air into the cabinet. The power supply has a fan that blows air out, and the rest of the warm air should rise to the monitor surround, where it will exit through the vent I added to the top as well as the access hole in the back.
I've mounted the game board with 4 screws to hold the metal plate in place. I hope the hard drive is alright at that angle.
I had to notch the interior shelf to allow the fans on the game board to blow air all the way up the metal plate. I've also got to think about adding some sort of plastic or metal piece to the intake fan that will allow the incoming air to flow towards the board.
The control panel attaches to the stand via a piece of wood. Here it is attached to the control panel with 8 bolts through the existing threaded inserts in the control panel box.

Here's the backside of the control panel mount. I used the slight discoloration on the bottom of the control panel tub to guess at the shape of the wood. I cut a slot in it to pass the wiring through.

I installed 4 T-nuts into the board. They will be what holds the wood to the control panel stand.

The top of the control panel stand. There's a slot for the wiring to pass through, and 4 holes for the bolts that hold the control panel to the stand.
I decided not to try and hide the bolts that hold the wood to the control panel. I figure that it's not important, since it's only visible if you're on the ground.
Here's another shot of the bolts that hold the control panel on.
Front view of the panel attached to the stand.
Side view of the panel attached to the stand.
Finally, major construction is done! Here I've given all the parts a quick hand sand with 220 grit, and layed them out for painting.
I've now got one coat of primer on most of the parts, and two coats on a few parts. I've used one quart of primer, and I'll have to get another to finish the second coat. I'm using a foam roller, and a brush to cut in the corners and edges.
At last, painting begins. I chose a two color scheme based on an idea I saw on the arcadecontrols website. I bought black and dark blue T molding, and the paint should be a close match to the blue molding.
Painting is done, and construction begins. Here's the bottom of the control panel tub with the mounting plate attached. I've also added T molding to the plate.

The monitor is in the surround, but I'm still working on mounting the plexi.

You can see the bolts that hold the monitor bracket to the top of the surround, but it'll be high enough up that they shouldn't be too noticable. I couldn't think of an easy way to hide them. If I countersunk them, the strength of the wood would have been comprimised.

I decided to use furniture sliders instead of leg levelers. I wrapped the T molding around the bottom of the cabinet to protect the bottom.
Here's the control panel stand with the control panel bolted to it.
I put the coin door on to see how the control panel stand looks completed, but I need to fill the holes, sand and refinish the door.
I've mounted the electronics in the stand, and put the shelf in. Everything fits the way it should. Now I just need to put the monitor on top, but that's a two person job.
I've installed the lock and some Gauntlet Legends art work I bought to finish off the door panel.
I've got the monitor on the floor, raised up by wood blocks. There are 4 bolts and 3 wire harnesses that need to be passed through the monitor stand. This'll be tricky, as I'll have to have someone help me lift up the monitor and then make sure all the bolts and wires line up.
Instead of refinishing the coin door I removed one from my MAME cabinet. I've also installed the Gauntlet Legends service switch assembly inside the control panel stand.

My friend came over and helped me get the monitor up on the stand today. The monitor assembly weighs a ton, there's no way it could have been done by only one person.

You can see in the picture that I still need to add the monitor plexi, and the small covers that will hide where the two parts connect.

When I looked at this picture I noticed that the white vent cover on the floor. That should have gone over the access hole in the back of the monitor surround. I'll have to slide it out and screw that in.

At this point I took a rest, so I haven't attached all the wires and powered it on yet. I wanted to be able to concentrate on the wiring to make sure everything was hooked up right before I turned it on.

Here's how I made the brackets that hold the plexi over the monitor. I took aluminum angle stock and glued a balsa wood triangle to the back. I used balsa because my local hobby store didn't have triangles made of plastic.

The purpose of the wood is easily seen in this picture. Rather than have the sharp angle, the wood acts as a buffer that lessens the angle so the plexi slides in and follows the same angle.

Ignore the drill hole, that was from another project. The real holes should go in the same side as the balsa wood.

I simply used wood glue to attach the balsa, and it's holding fine. After gluing I painted the brackets.

The protective film is still on the plexi in this photo. I still have to figure out how to hide the monitor brackets. The easy way would be to get a piece of black cardboard and cut a hole for the monitor, then place it behind the plexi.

Some monitors have the paper bezel straight across, instead of following the curve of the plexi. I think that type looks better, but it's harder to make.

Today I plugged everything together for the first time and powered it on - success!! A friend and I played for a couple hours. The only issues were a couple buttons that I swapped when I had them all unplugged to clean the control panel, some pincushon in the monitor picture and no lights in the control panel.

I've made the covers for the area where the two main pieces bolt together. I used black plastic snap screw covers to conceal the screws that attach the panels to the cabinet.

This picture was taken without a flash to show the game running, that's why the picture's a bit dark.

Three quarter side view showing the lit up attract panel in the joystick tub.

Yes, that's a light saber on top of the cabinet. It seemed like a good place to put it until I get around to making a lit up marquee box.

Reverse angle from above.
I've now added a light up marquee box above the monitor, and also game instructions below the monitor.

This is a closeup of the monitor section. I bought the marquee box already assembled, but there was no artwork, plexi, screws or light. I bought a flourecent light, plexi, and auto trim screws locally. I bought the artwork for the marquee box and the game instructions from ebay.

The marquee box is 2 pieces of plexi with the artwork sandwiched inbetween. The game instructions are stuck to a piece of plastic, then attached to the monitor plexi with velcro on each side. If I change the game out, I can make a new instruction sheet and attach it in the same place.