Note, there is an original speaker positioned at the top of the cabinet - I will eventually connect the speaker to an amplifier which in turn I will connect direct to a pre amplification point on the Vectrex PCB (should remove some of that infamous buzz). Beyond the speaker (at the front of the cabinet) there is also space to put a back light for the marquee.
Sunday, 29 July 2012
I have now mounted a Vectrex inside the cabinet. I have arranged it so that with the removal of just two screws the panel holding the Vectrex can just swing to a horizontal positon resting on a wooden dowel on the inside of each cabinet side. The picture shows the rear of the cabinet.
Note, there is an original speaker positioned at the top of the cabinet - I will eventually connect the speaker to an amplifier which in turn I will connect direct to a pre amplification point on the Vectrex PCB (should remove some of that infamous buzz). Beyond the speaker (at the front of the cabinet) there is also space to put a back light for the marquee.
Note, there is an original speaker positioned at the top of the cabinet - I will eventually connect the speaker to an amplifier which in turn I will connect direct to a pre amplification point on the Vectrex PCB (should remove some of that infamous buzz). Beyond the speaker (at the front of the cabinet) there is also space to put a back light for the marquee.
Sunday, 22 July 2012
Marquee and screen bezel
Following the disaster of last week i'm going to make a new wooden panel for mounting the coin box. But whilst that is being arranged I have been starting to think about making a back lit marquee and screen bezel for the Vec-Cab. I'm going to use a translucent neon blue perspex as I feel this fits in well with the colours for the Euro Vectrex. Here'sa photo of a recent eBay purchase containing a perspex panel ((727 sheet, cast acrylic 3mm A3). I got this from The Wholesale POS CO they are a company and sell various bits on ebay.
Also shown is another eBay purchase: a Vectrex sticker. I got this from ebayer bigange83 . In hindsight, the sticker is not exactly what I wanted. So I'm going to purchase a similar sticker but with larger letters and coloured black. Next thing is to work out how to cut the perspex and get a nice finish.
Tuesday, 17 July 2012
Disaster!
With the help of the neighbour the cabinet was easily
carried up the stairs to the back bedroom. However, it was whilst orienting the
cabinet so it was facing the correct way a disaster happend. The neighbour grabbed the top of
the wooden panel containing the hole for the coin box mechanism and exerted an upward
lifting pressure and subsequently snapped off the wooden panel at the top of the
hole. Out of all the places to grab the cabinet he grabbed it there! You should have seen my face whilst I tried to contain all emotions and the neighbour made a sharp exit.
It can’t
be fixed with glue, so I’ll have to get a new piece made. I doubt though if I
can find similar finished wood, so I think I’ll just go for a black painted
piece of wood. An all black wooden panel shouldn't look too out of place since the panel area is dominated by the black plate with the coin inserts.
The photo shows what is left of the original panel after removing it from the cabinet. It’s in more bits because I struggled to get it out in one piece because quite a few wood dowels and a lot of wood glue had been used to originally fix it to the side panels.
The photo shows what is left of the original panel after removing it from the cabinet. It’s in more bits because I struggled to get it out in one piece because quite a few wood dowels and a lot of wood glue had been used to originally fix it to the side panels.
Sunday, 15 July 2012
The Vec-Cab must move
Girlfriend isn’t at all happy about the current resting
place of the cabinet in the living room. She wants it to go upstairs so it’s
out of sight. Fortunately, the cabinet is now narrower, so the limited stair width as is commonly found in a terrace house, is not an obstacle to the move.
I have removed the cabinet internals to reduce the weight and am waiting
for a kind neighbour to give me a hand to carry it upstairs.
Tuesday, 10 July 2012
The Vec-Cab has been on a diet
The carpenter had taken the cabinet back with him in his van
so he could work on it in his workshop. Today he came back to return it! The
photo shows the cabinet after it has been on its diet and having just entered
the house (I also put a Vectrex inside leaning temporarily on a peice of wood behind it and supported by the cabinet). The cabinet is now just 41 cm’s wide (instead of the original 56 cm). As you can see from the photo
the control panel which originally had dual controls has had its right side cut
off, thus leaving only one joystick.
The hole under the control panel is for the coin mechanism
panel. This hole originally had around 6.5 cm of wood surface on each side. I did have a fear that cutting the sides of
the wood so close to the hole would reduce the panel’s strength. However, it
seems to be fairly sturdy.
The carpenter did complain about the cutting of the cabinet
saying that the chip wood was very brittle and it was very difficult to make a
clean cut. Close inspection does show a rather serrated edge of the cut wood
and I do wonder what tooth size he was using on his jig saw blade. Fortunately,
the cut wood with its serrated edges/sides is sandwiched between the two side
panels so it is not a big problem. I could probably fill the uneven edges with
black sealant afterwards.
The carpenter also added a new wooden box to the
base. This is done in MDF and does not look to be that strong as he has only used
glue to join the panels. This is something I will replace with my own design. Likewise
the wooden bezel has also been cut from MDF. Unfortunately, the edges do not
seem that straight. Is this carpenter really a carpenter :O ? I will replace
the bezel he has made too.
On the whole though the cabinet proportions with respect to the Vectrex screen don't look out of place.
Sunday, 8 July 2012
Lateral thinking – finally a solution
As the old proverb goes- If the mountain will not come to Mahomet,
Mahomet must go to the mountain. In other words - If things do not change the
way you want them to, you must adjust to the way they are.
Faced with no good and obvious solutions for making the
Vectrex screen larger I have decided to use the Vectrex with its built in
display in the cabinet. Of course this
looks a bit silly, so to reduce the silliness I will arrange to reduce the
width of the cabinet. I have stated in previous posts that my goal is to make
an arcade cabinet that would not look out of place in an 80’s amusement arcade.
Well, maybe I have to compromise on that goal and say that my cabinet should
not look out of place in a mid 70’s amusement arcade. The early games from then
did use small displays. Take Pong from 1972. This was an upright arcade cabinet
with a 13” B&W TV. So, true retro means small screens - at least that will be my argument.
I’m having new work tops in my kitchen fitted at the moment.
I’ve had a word with the carpenter and he’s agreed to disassemble the cabinet
and take a few inches off each side with his jig saw to reduce the cabinet
width. With a narrower cabinet, there won’t be enough space for dual controls, and
I will need a new control panel catering for just one player. He's agreed to cut the control panel too, and make a new bezel to put the Vectrex behind. Can't wait....
Oh, what a small screen you have!
I wish developing this cabinet was a full time job rather
than having to try and steal an hour here and there. There’s so much I want to
do with the Vectrex but oh so little time.
Anyway, although not much progress as taken place in the
physical world with respect to the cabinet build I have been busy thinking (again)
about the practicalities of a Vectrex based arcade cabinet. In the previous
post I mentioned my concerns about the Vectrex display being and looking too small
for the cabinet. Well, in fact that wasn’t the first time I had been thinking
about that. For a couple of years now I had felt that the Vectrex display would
look too small in a full size arcade cabinet and that would be the biggest
stumbling block to achieving a realistic arcade cabinet.
I mentioned a long time ago in my Sunday 23rd August
vectrex.co.uk news entry that I would ideally want to use a 17" - 19"
monitor with the Vectrex. It would have
to be vector based and hence CRT based. Forget about the electronic circuitry
changes required to the Vectrex in order to operate it with a larger sized
vector monitor (at least one person on the Vectrex forums has claimed to have
done this) :- the bigger problem is that I’d been searching for three years and
just couldn’t find a vector monitor anywhere.
I did read some years ago about another Vectrex fan that modified his
B&W CRT TV to work as a Vectrex vector display. However, I don’t have the
knowledge on how to modify a TV and was unable to contact that guy.
So at that time I made an investigation into alternative
methods of getting the Vectrex to work with a bigger screen. I came up with
something I called the Vectrex Optical Display Engine (VODE) module (you can
see it on YouTube). The VODE simply
housed an old 640x480 pixel digital camera operating in video mode and pointing
at a standard Vectrex console. This camera was connected to a 22inch TV via its
composite input.
However, I was disappointed with the final result. Not only
for the fact that the resulting graphics on the TV were comprised of pixels
instead of crystal sharp vector lines, but also because the resolution of the
camera was poor. Perhaps, if the camera resolution was significantly higher the
results would have been better, but the result would still be less than optimal
considering that the TV operates in raster scan mode.
Next, I remembered that in the early days of television, they
included lens to make the then small CRT screens appear bigger. I also recalled
seeing adverts from the early 90’s where add on lenses could be purchased for
TV’s and monitors. I believe it was in 2009 that Vectrex fan DarrlyB
experimented with a Fresnel lens to magnify the Vectrex screen. He used a
commercialised version of this type of lens which is normally sold as a book
reading aid. It’s like a cross between a magnifying glass and a sheet of paper.
I purchased one of these lenses too to carry out similar experiments. However,
this type of lens was less than satisfactory. When you were not directly in
front of the lens there was little observable magnification. I found that when
I was looking off centre, the spiral structure built into the lens played havoc
with the display of the vector graphics. On most of the games there seemed to
be some strange prism and line spiralling effects.
Another potential issue is, if I could have a bigger screen,
I would also need bigger overlays. Some Vectrex fans like playing games without
the overlays, but for me some overlays really do add to the game, take Pole
Position, Vectrexians or Vector Pilot for instance. The accompanying overlays
for those games really do add the illusion of colour.
So all the above captured thoughts relate to problems, but
worry not I have a solution….
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