I’m looking into building a direct-drive FFB wheel like the OSW , but on a budget. The OSW uses a servo motor and costs around € 1.000,- in total to build. So to keep the price down I’m looking at steppers, which are also used in the AccuForce direct-drive wheel, so in theory it should be possible.
I found a controller which translates the games ffb output through USB to a PWM signal here (in German though): https://www.forum.virtualracing.org/showthread.php/92420-DIY-USB-Force-Feedback-Controller
I’d like to use that controller to power a stepper motor like this: https://www.oyostepper.com/goods-104-Nema-34-CNC-High-Torque-Stepper-Motor-13Nm-1841ozin-5A-86x86x150mm.html
The missing link here (apart from an encoder to send the wheel position to the PC) being a stepper driver, which I know nothing about. I’d like to know what to look for in a stepper driver apart from the right amp/voltage rating for the motor used. For example, the creator of the FFB controller told me that a stepper driver might need a “torque mode” for it to work (can’t find a lot of info about that either though).
In case you’re not familiar with FFB wheels; the game used determines a torque output based on what happens in the game and your steering wheel position, basicly simulating what you would feel through the steering wheel in a real car.
I hope this is the right forum category to post this and that the links are ok.