How do I wire these pots to a MS Dual Strike?

[unclet]

I hacked some Microsoft Dual Strike USB Gamepads as outlined by 1up's site then I took out my HangOn motorcycle steering assembly this morning to start wiring it up to a Dual Strike hack, but I saw something I was not expecting.    The pot used for the throttle (gas) and the pot used for the brake are wired together as shown in the picture.  I was assuming there would be 3 wires from the throttle pot and 3 different wires from the brake pot so each set of 3 wires would connect to each of the two pots in the Dual Strike USB gamepad, but this was not the case.  There were a total of 4 wires only coming from both pots.

Anyway, how do I wire the two pots (throttle and brake) from my HangOn assembly to a USB Dual Strike gamepad for use in Mame?  Basically, how do I wire this assembly so I can play HangOn (and other motorcycle steering games) in Mame?  

Should I simply connect three wires from each pot and then use 3 wires to connect to one of the Dual Strike pots and the other 3 wires for the other Dual Strike pot..... or do I have to preserve the wiring type shown in the picture for the game to work correctly?  
Tell me how to wire this thing up please...  

[paigeoliver]

My first try would be simply to wire them up the way they SHOULD be, and not the way they are. I don't think the PC can read them the way they are currently wired.

Of course I also wouldn't waste a Dual Strike on that either, not when it is cheaper, faster, and simpler just to replace the pots and wiring with pots and wiring out of a $2 gameport joystick.

I am not an electrical engineer, but I think the way they are currently wired makes them act as one pot, or something weird like that.

[jerryjanis]

I tend to have a pretty loose attitude towards this stuff (the reason a new power supply and CPU are on their way to my house after 4-mouse hack gone awry) , so hopefully someone can come along and correct me where I'm wrong.

I did a couple of Sidewinder hacks, and I wire them the same way that your picture shows, with 4 wires going to 2 pots.  As I know it, the red and green wires are voltage and ground.  The middle wire is where the information output comes from.  So for your system including 2 pots, you can splice the power & grounds together, and have 4 wires in all returning to the sidewinder (or in the case of the original arcade machine, 4 wires to back to the PCB).

[Tailgunner]

It's not as weird as you think, lots of times PC pedal sets are wired up this way so they can share a joystick axis. Seperate axis (axi?) are better if you trailbrake, otherwise having them combined on one frees up an axis for something else.

Unclet, do you need an axis for the handlebars? If so you could combine the gas and brake on one and use the other for steering.

This might be of some help: www.monmouth.com/~lw4750/electrical.htm

[unclet]

Tailgunner:   So based on your description, I would be able to simply wire one pot (3 wires) to a MS Dual Strike gamepad pot and another 3 wires to the other MS Dual Strike gamepad pot .... correct?

PageOliver:  If I was only going to attach this one assembly to my cab, I might have just gone with a gameport hack, but since I am attaching multiple steering assemblies to my rotating cab, I decided to hack multiple Dual Strikes....

[u_rebelscum]

This is the analog equiv of common ground is on buttons.  

The POTs you have are wired with common volt & ground, while the dual strike does not look like it has a common volt & ground for it's POTs.  [shrug]  Not like people's CP will have 20 POTs, so "common analog" is not as important as "common ground".

What you discribed to Tailgunner is how to hook it to a dual strike.