Spin up turrets?

[LastMinuteFix]

I suggest you take a look at this topic. The discs actually behave more similar to a ball than you might think.

Spin Up Kinematics Graphing Tool

Hello! I was thinking about how best to launch rings into the Spin Up high goals and I created a tool that others may find helpful. When designing a disc launching system, I was evaluating how it needs to be able to shoot discs. I wanted to launch the discs such that they score in the high goal at as large of a range of distances as possible. Ideally, the robot would be able to land discs in the goal from both close distances and from far distances. The initial velocity of the disc, the angle a…

[7996B]

Also look at this topic if you want to know more about the flight path of the discs

Are discs frisbees: No?

Are discs frisbees pt.2 Comming soon Are these questions going to be answered who know?!?

[1908A]

That is very interesting I did not know that.

[anonymous19]

In vex change up I did 400rpm 4 motor drive and it worked great.

@Bean

are you sure you will be able to run 600 rpm direct drive?

very sure of this.

[insert_code]

I think that it would be nice if there were GPS strips on the fields, for this reason. The vision sensor could be really picky with lighting, but with the GPS sensor, you could probably make a program that always has the turret pointed at the goal, which would be really handy and just cool.

[Loco_25146A]

Put one inertial sensor on the turret and pair it with odometry and bam you have all you need to always aim at the basket.

[TimmyOsborne]

wheel size? 4inch omnis, 2.75inch omnis ect…

[seenSeal]

@insert_code

you could probably make a program that always has the turret pointed at the goal

not probably defiantly.

[anonymous19]

4 inch omni wheels.

20ch

[Paradox-E]

Could you give some more info about this? I don’t exactly know how inertial sensors work.

[Loco_25146A]

It’s a gyroscope, kind of like a compass it calculates the heading. So if the heading from the inertial sensor starts getting off, you have the code automatically turn the turret back so it stays in line with the goal.

[EuroDaPro]

wait, if your robot moves, wouldn’t the angle of the turret have to move?

[UvuvwevweOnyetenye]

Not with code keeping it at the same orientation as the goal. Motor spins turret.

Edit: misunderstood what you were asking.

[Loco_25146A]

Yep. The inertial sensor would have to be mounted on the turret instead of the drivetrain for that exact reason.

[EuroDaPro]

but the turret would have to change its angle. Right?
If the robot was at the bottom left corner. it would have to shoot straight, if the robot was at the top right corner, it would have to shoot at 90 degrees

[Qalis]

Yes, the turret rotates from signals from the inertial sensor. Keep in mind, the turret is the contraption that the flywheel sits on for rotation. This means that the turret rotates the flywheel to be in line with the goal.

[HazeL]

Wait, i get the idea. But what would be telling the bot to point at the goal? Because the inertial sensor just knows what way it is facing. There no way for the sensor to know where the goal is. So it would stay at that heading when the bot is rotated but when the bot is strafing it wouldnt move right? Because it would still be at the same heading. Idk maybe I’m overthinking it

[Loco_25146A]

Correct, you’d have to pair it with Odom, I forgot to add that in the original post I made lol i’ll edit it now.

[insert_code]

I’d think an inertial sensor on the turret that would be calibrated at the beginning of the match and programmed to turn the turret to the 0 position whenever the robot turns, which could be sensed with another inertial on the base of the robot. It wouldn’t be able to sense how far away the robot is from the goal without odom, but at least it would stay facing the goal at all times.

[EcstaticPilot]

It’s not as complicated as that. All you need is to spin the turret to the negative inertial on the drivebase degrees