Drive Train Gear Ratio

[asid61]

Originally Posted by JamesCH95

If your drive worked "very well" last year on an open field, why would you gear to a faster top speed (and thus less acceleration) for a much smaller field?



You won't like what you get...



Yes, by at LEAST a factor of 2.5.



Yes.

I STRONGLY encourage you to look at the JVN motor design calculator. These motors will pull a LOT of current. They will likely overheat and/or blow breakers. You will suffer from poor low-speed control. Your robot will also be very slow as it will not be able to accelerate effectively.

I'm going to go ahead and agree with most of this. 30fps is way too fast, and even if you go with 4" sheels you're still moving at 20fps, which is crazy fast for 4 cims! Your acceleration will be terrible.
Gear lower. With 4 cims on a tank drive, the maximum effective fps IMO is around 17fps, preferably 16-17. I don't know about mecanum speeds though, but teams have gone up to 15.4fps with mecanum at least.