I just decided to open a random poll to see the VEX Community’s opinion
Which do YOU think is better: a 2 motor drivetrain or a 4 motor drivetrain?
This is just for friendly discussion and this is also a major debate in my robotics club, and just wanted to see what others thought.
Imo a 4 motor drivetrain would be better in basically every situation. 2 motors is not nearly enough to be able to push around other robots during a match, and will very quickly overheat. There’s no reason to do a 2 motor drive unless you really need the other 6 motors for something else, which is unlikely. Even 4 motors will overheat relatively quickly and won’t have a lot of pushing power. If you can get all the other mechanisms on your robot to work using only 2 motors, I would highly recommend using a 6 motor drive to get the best mix of speed and strength.
I agree with iseau385 two motor drivetrain is good for less motor consumption (if this is a good way to put it) if u use 4 motor i would recommend a one motor catapult if you are to launch triballs so then you have 2 motors for a conveyor/grabber for triballs a great idea if you choose 4 motor drive is to use pneumatics to do certain task
A 2 motor drive is not remotely competitive in any form. 4 motor drives are much more prevalent, however 6 motor drives are actually used by most teams. I would recommend starting with a 4 motor drive, and then trying to move on to 6 once you’ve “mastered” 4. However, I’m speaking from a competitive standpoint. If your team’s goals are different, 4 is still likely the best way to go however 2 is not impossible.
I just opened this poll because a lot of people kept telling me that 2 motor drivetrain is “way better,” but I read up on 4 motor drivetrains, and my opinion is that 4 motors is better… everyone else says 2 motor divetrain is better because you save 2 motors. But me personally? There are 16 - 5.5 W motor spots available and 8 - 11 W motor spots. I don’t think 2 extra motors will hurt. They’re also much easier to drive.
A 6 motor drive is the way to go. Then we just have one for intake and one for catapult and then use 2 pistons for wings.
You are missing the point. At worlds last year, 8 motor drive was probably more prevalent than 2 motor drive. 6 motor drive is the standard for competitive robots. However, here are the statistics from my organization.
Team A: 2 motor drivetrain
Team B: 4 motor drivetrain
Team C: 4 motor drivetrain
Team D: 6 motor drivetrain(my team)
The only reason you would use a 2 motor drive is if you do not have access to more motors, which is sad but understandable. In any other scenario, 4 motor drive is a MUST at minimum. This is just my 2 cents but I would assume that many teams share this opinion.
6 Motor drive is a must for most competitive teams. Having a 6 motor drive has allowed us to win multiple matches, including state finals last season.
definitely a 4 motor drive that’s what my team has currently
I say 2 motors. In the 5 years ive done vex ive always done 2 motors,medium sprockets on the back small sprockets on the front and chain.
If I am understanding you correctly, does that mean that your wheels are spinning at different speeds? I could argue all the facts of how 4 or 6 motor drive is better, but I won’t. All the facts are already in this thread.
Yes,they spin at different speeds
Our team likes to use an 8 motor drive almost always. Though, we are a VEXU team and don’t have a limit on motors like hs/Ms.
That’s not a great idea… If the front wheels are spinning at different speed to the back wheels then that could result in situations in which the back wheels are dragging behind the front wheels. This will slow down your robot, reduce the little torque you have (pushing power) and make for super inaccurate autons.
Ive done this setip for 5 years, ive had acurrate auton and more strength the straight 2 motors.
You can’t have, science doesn’t lie. 4 motors have more torque than 2, it’s a fact. Each motor with a red cartridge has 2.1nm of torque, so having four would result in 8.4 nm, while having two would result in 4.2nm.
8.4 > 24.2
@Brainiac that sounds very interesting would you mind showing some photos or videos of how that works? Also, why are you using different-sized sprockets?
Would you mind tell us what team you’re on so we can see your numerous tournament champions and judges awards.
It is that time of year, early season, when we want to jump on eager posters (yup guilty as charged from time to time).
I think the line is being crossed in the T.H.I.N.K. social media advice as we have multiple posts hammering on one poster. We are better than that as a community.
We have a lot of teams who are pumped about this season - this positive energy is good, and welcomed.
However, let us not call out specific teams or organizations … pretty sure all posters/teams have had a misstep at some point.
Ill get some picture tommorow, if you have a big to small gear ratio you getspeed if you go small to big you get tourq. I was always told and have found this to works for chain system. Some may argue against it but tommorow if i rember ill put my robot against a 4 motor one to prove it, both robots will use green motor cartridges.
