I’ve always had trouble making a robot that doesn’t shake forward and backward when changing direction or driving quickly. I recently saw this video and I was intrigued on what 606X used to create their drivetrain. My question is what methods should I use to create a smooth, fast, competitive robot?…

@Orange_L , check out these resources: [image] Designing Another Quality Drive Technical Discussion A topic I created almost a year ago, designing a quality drive , has been a relatively frequently used resource. While I believe it’s still relevant as a resource, I’ve learn…

From my understanding, smooth drivetrains have nothing to do with the build it’s to do with the coding. I assume they they have allowed their robot to coast somehow with their code. Otherwise robots would jerk to a stop when you take your hands off the controls. Also if you are very aggressive with …

To create a fast, smooth competitive robot you would need a: 4-8 motor drive (never use 2 unless you absolutely have to) Gears have less friction than sprockets and take up less space so they are better for a DT You should always try to minimize slop so you should use blue cartridges in pretty mu…

For my robot we are using 4(600rpm) motors geared 3:8. It is smooth fast and does not overheat quickly. Honestly I don’t know where to put the brain (I just quit it where ever I have space). A PTO is where you use a ratchet or a piston to move power from one source to another. This way two different…

[image] RoboCaturtle: smooth drivetrains have nothing to do with the build Smooth drivetrains are partly programming but build quality is important too. I would recommend 4-6 motors for the drive. If you do not have pneumatics, 4 motors would be better.

Build characteristics that will help the appearance of smoothness and retention of control while whizzing around include 1) a low centre of gravity, 2) wide and long wheelbase assessed in terms of where the wheels contact the ground and 3) rigid construction.

Are the 4 and 3.25 and 2.75 inches the diameter of the wheels or gears?

Can you provide an example of a code that would create such a smooth drivetrain? Here’s the code I have right now: while (true) { leftFront.setBrake(brakeType::coast); leftBack.setBrake(brakeType::coast); rightFront.setBrake(brakeType::coast); rightBack.setBrake(brakeType::coast); …

Also, do you think that a gear ratio for more speed is necessary for the drive train, or is a 1:1 gear ratio on 4 blue motors good enough? And what size of wheels would you recommend for the drivetrain that I want?

If you are using a blue cart, you generally need to gear it down unless you want to run a 600 2.75 (very fast) And if you are using a green cart, you usually need to gear it up unless you are running a 4m 4” drive

Any idea how to make a drivetrain this smooth and fast?

VEX V5 General Discussion

VexTeamZ January 13, 2023, 9:48pm 14

@Orange_L, check out these resources: