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rotating monitor methods
DaOld Man:
Im not sure if you replying to my post or the one you quoted.
But I have not started on my rotatable monitor yet.
What method did you use? Any pictures or links?
The last motherboard I purchased a couple of years ago did have a printer port.
But all MB's now have USB, so it may be possible to use that as an I/O port to do what we want.
telengard:
--- Quote from: DaOld Man on August 01, 2007, 06:42:05 pm ---Im not sure if you replying to my post or the one you quoted.
But I have not started on my rotatable monitor yet.
What method did you use? Any pictures or links?
The last motherboard I purchased a couple of years ago did have a printer port.
But all MB's now have USB, so it may be possible to use that as an I/O port to do what we want.
--- End quote ---
Oops, sorry yeah I was responding to the ones I quoted, but I thought this was a new thread. Who knows if those folks still hang out on the boards.
I haven't seen any USB -> LPT cables yet just USB -> Serial. That's great they exist though. Might have to look into that. I did my rotating monitor pretty much exactly like Mr Salty. If I could give one word of advice on his method that I've learned over the past few years is to try and cut as best of a circle as you can. Any part that isn't uniform near where the monitor is parked will cause it to move slightly to the left/right which can be annoying if little things like that drive you crazy (like me). I used a jigsaw to cut it and wish I had taken it somewhere to be done better. I stink at woodworking. :dunno
As for my project it's here, if you have any questions about rotating I may be able to help, except for with doing it automatically w/ hardware. that's next on my list of things to do.
http://users.adelphia.net/~bsturk/mame.html
~telengard (does my site show up in my sig???)
DaOld Man:
Your site looks good. (The url does show up in your signature BTW)
Do you have details on how you hooked a motor to it?
Also, I was thinking of using metal instead of wood to mount the monitor to, and maybe use some type of bearings to support it, however, looks like the cabinet wheels worked good for you.
I was thinking of using USB as a serial port, not LPT. I am sure you can write to the USB to turn on an output card, however a printer port is much easier. I have done projects at work that uses the printer port for inputs and outputs. Its really not that hard. The output (one pin and a ground on the LPT port), could turn on a transistor, which would turn on a relay.
It would be neat if I could write a program that will recognize when a mame game starts, then look in a data file to see which way the screen needs to turn for that game.
Its just easier said than done.
telengard:
--- Quote from: DaOld Man on August 01, 2007, 10:30:33 pm ---Your site looks good. (The url does show up in your signature BTW)
Do you have details on how you hooked a motor to it?
Also, I was thinking of using metal instead of wood to mount the monitor to, and maybe use some type of bearings to support it, however, looks like the cabinet wheels worked good for you.
I was thinking of using USB as a serial port, not LPT. I am sure you can write to the USB to turn on an output card, however a printer port is much easier. I have done projects at work that uses the printer port for inputs and outputs. Its really not that hard. The output (one pin and a ground on the LPT port), could turn on a transistor, which would turn on a relay.
It would be neat if I could write a program that will recognize when a mame game starts, then look in a data file to see which way the screen needs to turn for that game.
Its just easier said than done.
--- End quote ---
Unfortunately I haven't hooked up a motor (yet). I manual rotate by grabbing a cabinet knob I installed on the wooden circle. I think you can see it in the screenshots on my site. Making Mame do what you described wouldn't be too difficult (then again I'm a software developer and have hacked mame/mess) but the HW aspect is what has kept me from doing it. I have minimal electronics design skills.
~telengard
Jimbo:
I've been playing around in sketchup lately trying to design my cab. I'm getting a 21" Hantarex Polo arcade monitor, and I want it rotate, so I've taken a few ideas from other projects on this site and come up with this (see pics below). I've designed it to fit into a cab that's 28" wide, and the monitor is to be mounted at a 45% angle. The monitor unit can slide in from the back of the cab.
I haven't started building yet as the designs are still unfinished, but its getting there :) Sketchup is great!
jimbo
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