Chief Delphi - Wheel controller for FRC

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Control System (http://www.chiefdelphi.com/forums/forumdisplay.php?f=177)

- - Wheel controller for FRC (http://www.chiefdelphi.com/forums/showthread.php?t=152351)

Re: Wheel controller for FRC

Quote:

Originally Posted by dirtbikerxz (Post 1616993)

We almost never hit 25 fps within a match, purely because of the acceleration time required. Still we were definitely one of the fastest bots on the field at the regionals we went to.

The bot weighed (without bumpers and battery) around 90 lbs. We had a 3 cim, 2 speed ball shifter. I don't know the ratios, I can find out in a week (after thanksgiving break) if you really want.

From what I have seen of your video, you guys do a lot of stop and go kind of movement. I'm talking about fluid arcs, which would on the surface appear to be easier with a wheel setup. Also, saying that your robot achieves 25 fps misrepresents reality, and I wouldn't want a rookie to see this and think that that is a realistic speed, build a robot around it, and then watch their robot not be able to move once it is weighted down.

Re: Wheel controller for FRC

Quote:

Originally Posted by dirtbikerxz (Post 1616991)

Having driven a robot this year with a top speed of 25 fps, and using a xbox one elite controller. I can personally vouch for the fact that you can indeed get the same precision required to go over defenses on an Xbox controller without stopping, with the proper practice and natural skill.

Quote:

Originally Posted by frcguy (Post 1616994)

Just a question - have you ever personally tried a wheel, joystick, etc. for robot control? If not, I would encourage you to pass judgement and not dislike something so strongly without using it first.

First of all, yes I have attempted to use my logitech g920 when I was first evaluating my driving options. And second, notice how I never said the a steering wheel sucks. All I said was that I can vouch for an xbox controller to have the same precision. And I will repeat myself again, the best option to use is the one that the driver likes. All I'm warning against is falling into the trap of "this elite team driver is using this method, so I must also use that method". I myself have fallen into that trap... many times.