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  #46   Spotlight this post!  
Unread 22-04-2012, 19:18
Andrew Lawrence
 
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Re: pic: FRC971 Spartan Robotics Presents: Renegade

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Originally Posted by Siri View Post
Awesome shooting! How do you like the steering wheel for driving control? And is it just the wheel or are the other buttons/pedals/something involved?
Same question. To add on, do you feel there are any advantages to using the steering wheel controller? (User intuitiveness, just feels easier/right to use, etc?)
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Unread 22-04-2012, 19:42
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Re: pic: FRC971 Spartan Robotics Presents: Renegade

Austin can give a more accurate answer than I, but I believe we are running a version of "Cheesy Drive"

At high speeds, your rate of turn is very sensitive to small disturbances in drive side speeds, so holding a good line with tank sticks gets increasingly difficult as your drive speed goes up. By letting the computer take care of the exact speeds and feeding the system a turning radius and speed, high speed control becomes much easier. It also allows you to scale the steering response based on your throttle level, although I don't know if we do that or not.

The quick-turn button allows a more traditional steering scheme for in-place turns. We've been using a steering wheel setup since 2006 and it's served us really well. It's just the wheel and a joystick for throttle control, as Jared surmised.
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Unread 22-04-2012, 19:45
Andrew Lawrence
 
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Re: pic: FRC971 Spartan Robotics Presents: Renegade

Thanks. Just for reference, do you know which steering wheel controller you use?
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Unread 22-04-2012, 20:19
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Re: pic: FRC971 Spartan Robotics Presents: Renegade

Good Job at the Sacrmento and SV Regionals. You were amazing and we hope to see you in go far in national.
-Best of luck team 2073
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Unread 22-04-2012, 20:49
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Re: pic: FRC971 Spartan Robotics Presents: Renegade

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Originally Posted by SuperNerd256 View Post
Thanks. Just for reference, do you know which steering wheel controller you use?
I believe the one we are using at the moment is a Ferrari Thrustmaster wheel. We've used a few different ones in the past, but they weren't as robust. The wheel needs to be auto-centering one way or another, whether that be by design or stringing surgical tubing inside the wheel. However, its much better to have it bought as auto-centering. It less work to convert over.
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