TheRightNA

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@pullfunnystick 4 ай бұрын

that movement to the center to prepare is actually important

@russ-techindustries 4 ай бұрын

Naw but why does the wooden robot work better than ours? 😭

@itsskip 4 ай бұрын

That is really impressive. How much time, coding, and assembly was required on top of all of the planning?

@hippo7666 4 ай бұрын

28 successful notes + 1 on the microphone

@foenza 5 ай бұрын

what the goated 😮

@chinnychin0135 3 жыл бұрын

I wonder how many first tries it took

@ashwingupta9347 3 жыл бұрын

way more than I'd like to admit haha

@aristeinfeld3687 Жыл бұрын

Hey! Funny seeing you on a random recommended video.

@MrRiedemanJACC 5 жыл бұрын

Love your testing rig!!! Care to share any of those files so we can cut some out on our laser cutter?

@TheRightNA 5 жыл бұрын

I'll ask my CADers if they still have the dxf file. Send me a dm if you still need it

@SivaExperiment 5 жыл бұрын

team 6164 is gonna STEAL jk we are going to use this information to adapt our own form of this and then go from there

@karlsunjennings417 6 жыл бұрын

Is the intake suspended by pistons?

@TheRightNA 6 жыл бұрын

Karlsun Jennings The intake holds the cube with surgical tubing, but the arm has a motor driven wrist to control the angle of the intake

@NickMak 6 жыл бұрын

I'd consider adding more weight to the bottom, that think looks like it'll tip over any second

@TheRightNA 6 жыл бұрын

Yup, that's the plan. Luckily we are super underweight

@RobotRiedingerEd 6 жыл бұрын

If it is six wheel with a drop center, you are going to get some rocking, just the way it goes.

@TheRightNA 6 жыл бұрын

Robot Riedinger The drivebase is designed without a drop, but the vex versa wheels are about 1/4" larger than 6" so it causes the drop you see. A fix for the unintentional drop was switching to andymark traction wheels

@RobotRiedingerEd 6 жыл бұрын

Interesting. Good Luck in Pomona and Vegas. We have a very similar robot, but we went with pneumatics for the wrist and gripper.

@troy4393 8 жыл бұрын

First thing I noticed @ 0:38: the top left corner of our yellow ball grabber.

@libertarianscholar5969 9 жыл бұрын

lmao background music

@Lame.Boy.Color. 9 жыл бұрын

Near bot death experience

@robonauts1188 9 жыл бұрын

Sweet drive system! There will definitely be a ton of mecanum users this year.

@strongbad2795 9 жыл бұрын

Do you guys maintain heading despite the robot orientation? Or is the front of the robot always the front of the joystick?

@TheRightNA 9 жыл бұрын

I am not the best at explaining the technical aspects of the robot, however pushing the joystick forward will always result in the robot moving forward. This allows us to easily do the maneuver shown in the video. The driver is simply giving the robot forward, backward, left, or right commands while using a second joystick to "turn" or spin the drive. If you have more technical questions I'd be happy to have one of the programming students assist you with that

@jacobdavis787 9 жыл бұрын

Actually, it seems to me that they are using the mecanum_cartesian drive with the gyro to keep the heading.

@wesleysoo-hoo2803 9 жыл бұрын

Also, the code that we use for this robot is on GitHub, but like I said, it's in Java. The link is here: Team 687 Github: github.com/nerdherdhome My Personal Github (where the actual mecanum code is): github.com/wsh32 Nico (the lead programmer)'s Github: github.com/nmpandafish6

@wesleysoo-hoo2803 9 жыл бұрын

We actually program the robot in Java, but the theory of operation should be the same for LabView. Basically, we declare 3 variables, one for forward, one for strafe, and one for rotate. Each of these three variables are directly controlled by one axis of a joystick. (They can also be multiplied by a constant to control sensitivity) Now, for the motor values... We have to first find out which way we want the wheel to turn for each value if the value is positive. So, with the first value (forward movement), if it is positive, we (probably) want the robot to move forward. So, we would want to motors to behave like this: Front Left: CW (clockwise) Front Right: CCW (counter-clockwise) Back Left: CW Back Right: CCW Assuming clockwise is a positive number, we have: Front Left: 1 Front Right: -1 Back Left: 1 Back Right: -1 Next is strafe. Strafe can be a bit tricky, well, because it is strafing. But there are some good diagrams that show it pretty well. One is here: me218clilwing.weebly.com/uploads/2/0/0/1/20011863/1162564_orig.jpg?373 So, if we follow the same process as we did for forward movement, we get this: (assuming right is positive) Front Left: CW, 1 Front Right: CW, 1 Back Left: CCW, -1 Back Right: CCW, -1 Lastly, we have rotate, which is pretty strait forward Front Left: CW, 1 Front Right: CW, 1 Back Left: CW, 1 Back Right: CW, 1 (assuming that right is positive) When we get this, we can derive the algorithms for the motor values. Front Left: forward + strafe + rotate Front Right: -forward + strafe + rotate Back Left: forward - strafe + rotate Back Right: -forward - strafe + rotate Once you have these values, you can plug them into the motors, and it should be a pretty solid driving mecanum. Good Luck! Let me know if it works out or if you have any questions.

@Erick-ds5cu 9 жыл бұрын

Or if you have put some sensor like a encoder...

@Erick-ds5cu 9 жыл бұрын

Hi, Im a mentor in a team from Brazil. I was wondering how you did the mecanum drive control... Let me know if you have just used the ni holonomic block from labview. ty