Main > Main Forum

rotating monitor methods

Pages: << < (5/13) > >>

USSEnterprise:

You see, there are some horizontal games I really enjoy, like Marble Madness and Missile Command, while some of my other favorites, like Donkey Kong and Centipede are vertical. I am definitely going to use some type of rotation, and I have a plan utilizing an old turntable which may work, may not. I need to tru it out, and see if that old fisher turntable can move the weight of an LCD. Its direct drive, so there is a chance that it will work.

csa3d:


--- Quote from: koz319 on February 15, 2007, 05:30:40 pm ---I built a rotating monitor in my cab (21 in. crt) - controlled through the parallel port.   The parallel port controls an h-bridge which controls the direction of motor rotation. (if one pin is high, rotate clockwise - if the other pin is high, rotate counter clockwise.) 
There are two limit switches - each switch is set up to interrupt the signal to the h-bridge to stop rotation, as well as set another pin on the parallel port so the pc can read when the limit is reached.  Another paralled port pin is attached to the monitors degauss circuit. 
I wrote a quick command line prg that you pass a few arguments to - which way to rotate, degauss at end of rotation or not, and a timeout in seconds, so the montitor will stop turning if there is a limit switch malfuntion.   You can use this from you desktop or call it from whatever to change the monitors orientation.

--- End quote ---

Koz:  Do you have any pictures of the rotating setup on these forums by chance?  I didn't see any linked to the Golden Ticket thread..

freckleface:

Koz: especially if you go large, I'd like to see how you set up.

koz319:

I don't think I ever posted pics of the rotating setup... I'll check and see if I have any handy.  If not, I'll take a few sometime this weekend and post them. 

If I do another cab,  I'll probably stick with an arcade monitor in the 19-21 inch range (do they even make 20 or 21 in arcade resolution monitors?  I need to check).   The main reason is I want to keep the size of the cab as reasonable as possible, and to allow the monitor to rotate, you need to allow some additional width.  For my space, a cab set up to handle a 25 or so inch monitor would probably be bigger than I want.  (meaning I would no longer be able to fit it thru the door :) )


Just out of curiosity, what do you consider large? 

For my current cab,  I etched a simple board for the motor contoller at home.   If theres some interest,  I could probably get a few made at a boardshop for a couple of bucks each.   I dont remember the cost off the top of my head, but it couldnt have been more than 10$ for components, if that.   

Koz


csa3d:

Awesome!  Can't wait to see this setup.  Sounds interesting.. board etching.. H-Drives... like pig latin to me  ;)  Hopefully a pictures says a thousand words.

-csa

Pages: << < (5/13) > >>

Go to full version