Indy 500 force feedback hack

shess

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Does anyone know if the force feedback motor on an Indy 500 can be hacked to work with a PC like in conjunction with a Logitech force feedback unit? From my research it sounds like it's a servo motor as opposed to the Daytona force feedback setup which means it might be doable. Any suggestions?

Thanks,
Scott
 
I looked at a wiring diagram and it looks like there are two pots, one for each side. One goes to the motor board and one goes to the drive board. Presumably it's for some kind of fault tolerance? So the operator can make sure force feedback is working correctly and the wheel has the full range of motion? Maybe I can just pick one for the signal and wire it into another force feedback joystick PCB and forget about the other pot. Think this will work?

Scott
 
I took a chance and picked up the Indy 500 parts, but now I need some help with AC motor theory. It has 3 wires for power and they're all colored the same. I couldn't find any label showing the internal wiring so I'm not really sure how to wire it up. According to the schematic, the motor board takes in 100VAC so I assume the motor runs off this. I tried applying 100VAC to the pins on the motor cord directly just to see if it spins (I removed the external gears and stops so the rotor could freely spin) but it just hums a little and the rotor jerks a little, but nothing more. I tried to spin the rotor to see if it needed assistance but that didn't help. There was also some resistance in spinning it manually with power applied but it spun freely when de-energized. I'm assuming it's single-phase as opposed to 3-phase because the input power is regular single phase house current. Any ideas on how to get this motor going?

Scott
 
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