After
finishing my Mini-Pacman styled arcade I decided to
take it to work and show it off a little.
Everyone loved it, a few loved it so much they had to
have one too. So, I agreed to build a couple for
my co-workers.
There were several issues I had with Mini-Pacman
that I hoped to fix on the new arcades.
Objectives (things
to fix this time around)
I was using the Ms. Pacman controller from Jax.
one of the games on the controller was Pole
Position. To steer the car you twisted the
joystick left and right. This was impossible to do if
you replace the original joystick with a real arcade
joystick.
On the original Mini-Pacman I rounded the
edges using my router to look like t-molding. I
figured that it would be easy to go back and paint it
when the cabinet was finished. What a pain in
the butt. The new one will be slotted for
t-molding, much easier.
I didn't like the way the plexi-glass
mounted. I used 4 screws to hold it in
place. The bottom 2 screws were covered by the
control panel, but the top 2 were visible. I had
hidden every screw but those two. That drove me
crazy, It must be fixed.
Basically the entire back panel was a
door. Because this was a major part of the structural
integrity of the cabinet anytime it was open the
cabinet would shift very slightly and you'd have
difficulty closing the door.
The only thing holding the plexi-glass to the
control panel was the buttons and all the control
buttons were on the right side of the control
panel. This makes the plexi-glass flexible on
the left side. While unloading it at work the
plexi caught on the blanket I was using to protect the
arcade and cracked the plexi.
Sorry no pictures of construction. I
don't know why, I just didn't take any.
I decided to make my life a little
easier and create a template out of 1/8 fiber
board. The template has the basic shape and
cut-outs for the 1x1 support boards. With the
template I can layout a Mini-Pacman in 5 minutes
instead of a couple of hours of measuring.
I also decided to build 2 at a
time. I figured it would take me about 6 hours
each for just the basic wood construction. It
only took 8 hours to build both of them. Not
bad, saved me 4 hours.
The hardest part of the construction
is gluing and screwing all the pieces together.
To make it a little easier I predrilled all the 1x1
pieces before they were mounted to the sides.
I placed the template on top of the 2
sheets of 49"x24" 5/8" MDF and traced
my outline and the position of the 1x1 supports.
I then clamped the 2 pieces together
and cut the straight areas with my Skill saw. I
finished the round cuts with my jig saw.
While both pieces are clamped together
I sanded the edges to ensure that they were equal.
Next I used my router and my brand
new 1/16" slot cutting bit to create the
channel in the edge for my t-molding. (Objective
2 complete.)
I then cut all the 1x1 supports and
predrilled the holes to mount them.
Using the cutout on the template I
glued and screwed all the 1x1 supports to side (A).
I then removed the template and set
side (A) to the side to dry.
For the second side (B). I just
flipped my template over. The second side should be a
mirror image of the first side. I have one side
marked (A) and the other side marked (B) so I don't accidentally
make the same side twice.
After both sides are dry it's time to
cut and insert the middle pieces. This is the
hardest part. It's like trying to balance a deck
of cards.
This time I split the back door
into 3 different pieces. Basically cutting
5" from the top and bottom that will be
screwed and glued permanently to the arcade.
I also cut 1/8" from the side of the door
section. That way the 5" top and bottom
will stiffen up the arcade and with 1/8"
removed from the door it will open more freely. (Objective
4 complete.)
To mount the Marquee I cut a 1/8"
slot 1/4" from the front edge of panel (1).
When mounting the marquee it slides into that slot and
the bottom edge is held in place with a piece of
1/4" aluminum angle screwed into panel (4) from
the bottom.
To mount the bezel and minimize the
screw that are seen I cut a 1/4" groove 1/4"
from the front of panel (4). That way there is
room to mount the 1/4" angle for the marquee and
I can slide the 1/8" plexi and 1/8" fiber
board into the slot securing the top of the Bezel with
out the need for a couple of screws. (Objective
3 complete.)
Painting:
All parts were screwed from the inside
so no filler needed. Just some light sanding on
the MDF and a wipe down with a damp cloth. I
borrowed one of those electric paint sprayers.
Did I say how much I hate painting. The brush
nearly killed me last time.
My first coat was a white
primer. It went on smooth, I thinned it a little
too much but it was ok. I let that dry then
lightly sanded and used a damp cloth to remove the
dust.
Next I taped off all the areas that
would be yellow and painted the black areas on both
cabinets. This time I didn't thin the paint at
all. This looked much better, also don't let the
container get to low on paint. When it does it starts
belching big globs of paint everywhere. It gets
ugly really fast. Beware of the Globs!!!
Once the black dried I prepared the
twins for the yellow paint. This time the
painting went even better, no big globs.
Once the Twins were dry its time to
remove the paper and tape. That is the funnest
part.
The Twins only need 10ft of t-molding
each. I chose red, Why? Because I like it better
than orange. It went in easily with the gentle help from my rubber mallet.
Jax Hax!(I'm
going to be referring to the Original joystick from
the Jax controller a bunch so I'm just going to call
it the "OJ" for short.)
It's time to hax
the Jax, you will need:
1 Jax Namco 5n1 Ms.Pacman
controller.
1 phillips
head screwdriver
Soldering
iron and soldier
Wire
cutters/strippers
Aloe Vera
cream (for when you burn yourself with the iron)
6 female
terminal connectors.
Some 24/26
gage wire. I use some extra network cabling.
small shrink
wrap or but connectors.
6v 200-300
mA power supply.
Hammer
awl/punch
vice or
extra set of strong hands.
Lets begin:
remove the
battery cover.
remove the 4
screws on the bottom that hold the thing together.
slide the
battery compartment out of the case.
desoldier
the connection to the battery case. Make
note of + and -. On mine the red was + and
the blue was -.
Now you need
to get the joystick out. To do this remove
the bottom of the 4 screws the hold the bottom of
the OJ housing. be careful there is a spring
and a pot attached to the bottom of the OJ.
Carefully
pull the pot and the spring thing from the bottom
of the OJ. Note their position.
Now you
should see the bottom of the OJ it should have a
round piece of plastic with a square notch pressed
into the bottom. To remove the joystick use
a hammer and a awl/punch to knock the joystick out
from the bottom. I place the housing in a
clamp upside down or you could ask some one to
hold the housing upside down while you tapped on
the shaft with the awl/punch and hammer.
Either will work, the goal is to remove the
joystick without damaging the plastic key on the
bottom.
Once the
joystick is removed then you can take the
remaining stuff out of the housing.
Now that you
can see every thing you can begin to mount it to
your Control Panel.
Control Panel:
(I'm going to
be referring to the Original joystick from the Jax
controller a bunch so I'm just going to call it the
"OJ" for short.)
First you have to decide where you
want your buttons. You'll need 3 and you can
have as many as 5. I'm only using 3.
Menu, button A and button B. You could also
have buttons for power and reset.
I moved the Menu/Pause button from
the far right of the control panel to the left
between pacman and the ghost. This will help
hold down the plexi on that side. (Objective
3 complete.)
Now time to cut holes. I cut 3
holes for the buttons using my normal 1 1/8"
hole saw and used a 5/8" drill for the hole
for the OJ. the shaft and dust cover are a
lot smaller.
Because of
the shape of the housing for the OJ I also had to
route out a portion of the back of the CP in the
shape of the OJ housing. It basically looked
like a square with 1 corner cut off with a hole in
the middle.
I then
mounted buttons through the plexi glass and
mounted the housing on bottom making sure I had
the orientation correct.
Then I
mounted the circuit board. I placed it next
to the housing and used some plastic tubing as
spacers to keep up off of the board.
Now it's
time to wire. The circuit board is nicely labeled.
A for button A, B for button B, and P for
menu. They all use a common ground which on
mine was orange.
First
I wired the common grounds. To do this I
first got rid of the original buttons. I
desoldiered them at the button.
I then used
the extra wire and connected the grounds from
button a, b and menu together and used soldiered
that wire to the orange ground that was connected
to the old buttons. I used a but connector
to cover the soldier, shrink wrap would have been
better, but I couldn't find mine.
Next you
need to connect the individual wires from the
soldier points on the board with those on the
buttons.
Now you need
power. You could get a female plug for the
power supply that you are using, I didn't. I
just cut the plug off of the end of the power
supply and soldiered it to the circuit
board. Remember blue is ground and red and
positive. Use a voltmeter to determine which
is + and - on your power supply.
Install your
joystick. (Objective
1 complete.)
Now test
it. plug it in, turn it on. I just
left the on switch dangeling underneath. if
the light comes on you should be ok. If not
check your connections. You may have
installed your power supply backwards. If
that happens then it is fried and you'll need to
put it back together and return it to walmart and
start over.
I mounted
the CP in the arcade from the bottom. 1
screw on each side should hold it.
Display:
I used a
13" TV that has RCA inputs. I just plug
the controller into it.
The bezel
actually needs to be mounted before the CP is
mounted.
I used
1/8" plexi glass with a 1/8" Fiberboard
backing. This helps firm up the plexi glass
and gives you a place to sandwich your graphics
between.
The
plexi/fiber sandwich is slid into the groove in
the bottom of the marquee and is secured with 2
screws in the bottom. These will be hidden
when the CP is installed.
Completed
Now the twins are ready to move out...
As a father is't hard to see your girls grow up.