High speed Drivetrains

[Dragonslayerend]

Originally Posted by efoote868

Most years teams limit themselves to 12 fps or less because 12 fps is a sweet spot when it comes to acceleration in drive trains.

You can design a drive train that will go 40 fps; it'll never reach that speed on an FRC field. A better way to design a fast drive train is to figure out the maximum straight line travel your robot will ever have to go (be it 10, 20, or 40 feet), and then design the gearing around that.

I'll have to look into it (and do a search), but if I recall correctly there was a model that showed that a single speed 4 cim drive geared to a maximum 12fps went from dead stop to 20 feet in about the same amount of time as a drive geared to a maximum 14fps, and faster than a drive geared to 16fps. The 12fps drive had the advantage of more pushing power than the 14fps drive.

EDIT:
Was this thread I was thinking of.
http://www.chiefdelphi.com/forums/sh...l+simu lation

We will do a drag race with multiple neighboring teams that runs at 6 fps to 14 fps to see which actually is a faster robot for accel and distance travel. N post it up.