@@joshkosh8989 the degree bend of the hood can automatically adjust based on data from the vision sensor and the robot’s relative position on the field to allow itself to shoot from anywhere (and a wide range of angles) on the field
Great robot by the way. I was just wondering, what is the piston angle actuator for. Is that to adjust the angle of the shooter to shoot from further distances?
just wondering about your thoughts on having this robot, but with an x drive base instead? i feel like it would negate the overheating common in mecanum wheels, but it would also be a tougher build lol
Yeah we actually started building an x-drive for the ri24hr at first, but then we realized for time constraints that it would be a little difficult. So instead we just went with mecanum wheels.
What’s your process of building a robot. Like what steps go into designing and building a whole robot. I’m in a new team this year and I want to know the best way to approach one of these challenges
Know what parts need to be included in the bot (intake, lift, drive, etc.) weigh the pros and cons and decide what would be best for the specific game of the season. Then you just build each system and put them together (look at examples like these for help)
We are probably over, for the sake of time because it was all done in a 24 hour window, we used a lot of cut plastic instead of using metal or something else. Plastic is super easy to design and build with.
We used 1.625” on the first stage, and 3” on the 2nd and 3rd stages. We would’ve went with 1.625” for all of them if we had enough, but we only had 4 so we had to make do with the 3” wheels. The 60A wheel was for increased compression on the discs in the shooter, and because they expand much less than the softer wheels when spun up to the speeds necessary for a flywheel.
We wanted to go with some kind of holonomic Drivebase for increased maneuverability, so we started out building a geared up X-Drive but it was taking too long and was getting more jank than we wanted it to be so we switched to Mecanum so we would have some sort of Drivebase done to put the shooter mech on when it was ready (both the Drivebase and the shooter were built at the same time).
Also x drives have rollers which make it very easy to push around. To be honest Especially during the early rounds there will be a lot of bad robots and they will focus on messing you up and by using an x drive they can easily push you and mess up your shots
Does the trajectory of your shots change based on how empty or full your reservoirs are since it's a different amount of force being applied to the discs with each indexed shot?
The intake in this uses a series of wheels which I'm assuming have a grippy surface. In terms of IQ the best way to go is just a rubber band roller, similar to the one in fling.
We wanted to go with a 2 motor flywheel because the 1 motor ones looked bad that we saw before we started building. So then we are left with two motors so do an intake. If it wasn’t a 24 hour build we would have ratcheted the intake off of a drive possibly and gone with a 6 motor drive.
For the 24 hour build window we felt we didn’t have time to get a x drive fully built and incorporated with the rest of the build. We still believed that the ability to straif is a huge advantage in this game so we went with a meccanum drive. X drive was our first choice tho.
Did you have any issues with the flywheel motor overheating? Also was 3000 not enough to get the distance you wanted? Bot looks absolutely crazy. Props
Thanks. We decided to go for 4200 because we saw some people running 3000 and thought it looked a little weaker than we wanted, and we had already planned on 2 motors so we had plenty of torque to work with. I didn’t notice any overheating in the flywheel, the Drivebase was the major limiting factor for how long we could run it as it dies of overheating long before anything else.
A really good way to over come this is to make the spin wheel very heavy. The motor will have really hard time during the first few seconds but afterward the wheels own weight keeps it going and the motor barely does anything and won’t overheat
@@reconnecting5370 yeah so basically by increasing the mass of the flywheel, you are increasing it’s rotational inertia. This means that although it will take longer to initially spin up (as it’s increased inertia causes it to initially want to stay at rest), it will have a better time with speed recovery as once it get to max speed it’ll want to remain there.
@@662bkepler I had our team build a similar shooter, same dual 600 RPM motors, same 7:1 gearing. Same black wheel. Gears and motors carefully aligned, no excess friction, and shafts, bearings and gears lightly lubricated. At full power to the motors and no disks being launched, the motors can't even get the wheel up to full speed. Motors are running at full power, and only getting to about 500 RPM. The don't immediately throttle due to heat, but launch a few disks and they do. Not sure what might be wrong. Thinking of skinning the sides of the wheel with smooth plastic to cover the spokes and reduce air drag. Did you do that?
For the robot in 24 hrs we didn't want to add any. Right after we were done we added a GPS sensor on it to test out that system with auto aiming and it worked pretty well. We also would add a color sensor to the front of the bot to automatically flip the rollers instead of having to do it by line of sight.
fr bouta act up
yOUY LIKE ME !!!
ladies and gentlemen, this is the robot that will be at every tournament and you will see 4 of them on the world's field. may the best clone win
woohoo going from 1 copy season (pitching in) to another
it will be 21050A my sources say
@@vylet4807 every season is a “copy season” lmao
@@armaangupta1238 ok true but at least there is some variation in some but pitching in, after spitfire was released uhhh yea you get the idea
The only thing that I think will be different are turret bots
OP robot and with some vision tracking & hood auto-adjusting this robot could dominate tournaments
What exactly do you mean by "hood auto-adjusting?"
@@joshkosh8989 the degree bend of the hood can automatically adjust based on data from the vision sensor and the robot’s relative position on the field to allow itself to shoot from anywhere (and a wide range of angles) on the field
like wolfpack machina?
Why is this exactly what i had in mind. Everything about it. Thanks for posting this.
Yo this is insane. My team has been building for so long and it doesn't even compete with this robot. Nice job!
This was literally our cad design built. A really great idea!
Bro could you send the cad design
@@VelocityVis make one yourself thats the whole point of vex
@@difficult.to.underestimate fr. Just take the time to copy this robot if u want it so bad. I am taking everything but the flywheel.
still I am basically taking the flywheel from the design that they are using
@@difficult.to.underestimate We don’t currently have parts but as soon as we do get them we are def going to build the design.
Who needs a dog to fetch frisbees when you got this bad boy
Hudson would be proud
I am also very proud of Hudson's decision to switch to VEXU!
Best. RI24H. Ever.
This is insane
This 24 hour bot will be better than my whole season bot x_x
Love the robot although still not sure on that spiral disk loading mech. Great early season design, very nicely built
a lot of the teams from ftc found out in 2020 that the spiral guide for the dicks actually helps a lot with acuracy and consistency
the nuematic kicker is so cool
Glad to see other teams doing this. First saw this on 62Aa while ago.
Good job, good video.
Now this is epic.
Welcome to the Wolfpack machina meta
Good luck at tournaments
This will be tough competition this year
I thought that ftc ultimate goal was dead until vex brought it back as spin up
When a robot made in 24 hours is better than our teams robot for the entire season last year
Great vid Leif!
this robot got me acting unwise
This looks like 🔥🔥🔥
Laughs in ultimate goal
Go crazy
bruh i don even know whose team I'm on :O
nice roller
Looks amazing, may I ask how big the bot is? Is it at 18x18x18in or is it smaller?
18
Oh wait this is my neighbor lol didn’t realize that at first🙄
u should add some intake features for intaking while strafing
24 hours… wow
this is just too good
We are going to use Macanum wheels. Did you all upgrade your motors from green to blue?
TP came in handy, thanks
How do you make the disc launcher motors not get tired? Ours get tired right away, in a minute they are already tired.
I love the u shooter
Great robot by the way. I was just wondering, what is the piston angle actuator for. Is that to adjust the angle of the shooter to shoot from further distances?
You can see it's used to push the disc more further to be launched
just wondering about your thoughts on having this robot, but with an x drive base instead? i feel like it would negate the overheating common in mecanum wheels, but it would also be a tougher build lol
Yeah we actually started building an x-drive for the ri24hr at first, but then we realized for time constraints that it would be a little difficult. So instead we just went with mecanum wheels.
How does that intake mechanism work? Like how do you get it to lift up and why?
What's the material you use on the exit of the shooter? It looks like some sort of metal mesh, but correct me if I'm wrong.
What’s your process of building a robot. Like what steps go into designing and building a whole robot. I’m in a new team this year and I want to know the best way to approach one of these challenges
Know what parts need to be included in the bot (intake, lift, drive, etc.) weigh the pros and cons and decide what would be best for the specific game of the season. Then you just build each system and put them together (look at examples like these for help)
how many shots do you get using a piston?
They said around 50 I think
64 as per their VEX Forum thread. So enough to last for a full skills match
How many custom plastics are you using? It looks more than 288in^2.
Also, excellent job, I absolutely love your idea for the spin up.
We are probably over, for the sake of time because it was all done in a 24 hour window, we used a lot of cut plastic instead of using metal or something else. Plastic is super easy to design and build with.
i noticed you guys go over the size limit slightly in the back
Just needed to cut that c channel, it doesn’t do anything anyway
The two motors for the flywheel are directly to the wheel, or how you do for using two motors for shooting the discs?
Hi, where to get this robotic structure parts?
how many motors do you use
clean
What flex wheels sizes are you using for your intake? Also, any reason for using 60A?
We used 1.625” on the first stage, and 3” on the 2nd and 3rd stages. We would’ve went with 1.625” for all of them if we had enough, but we only had 4 so we had to make do with the 3” wheels.
The 60A wheel was for increased compression on the discs in the shooter, and because they expand much less than the softer wheels when spun up to the speeds necessary for a flywheel.
@@662bkepler What size is the flywheel wheel? Also what type of hubs did you use, plastic or aluminum?
Why did you use Mechum wheels instead of omnis
They did it so that you can pick up discs in a semi-straight line without having to turn. With Mecanums, you can just strafe into the next disc.
We wanted to go with some kind of holonomic Drivebase for increased maneuverability, so we started out building a geared up X-Drive but it was taking too long and was getting more jank than we wanted it to be so we switched to Mecanum so we would have some sort of Drivebase done to put the shooter mech on when it was ready (both the Drivebase and the shooter were built at the same time).
@@662bkepler ah makes sense really good bot they made
Also x drives have rollers which make it very easy to push around. To be honest Especially during the early rounds there will be a lot of bad robots and they will focus on messing you up and by using an x drive they can easily push you and mess up your shots
Does the trajectory of your shots change based on how empty or full your reservoirs are since it's a different amount of force being applied to the discs with each indexed shot?
No
How does the intake work? I'm not in VRC but the IQ game is pretty similar in the sense that both games use disks.
The intake in this uses a series of wheels which I'm assuming have a grippy surface. In terms of IQ the best way to go is just a rubber band roller, similar to the one in fling.
What is the name of the poly carbonate or plastic stuff?
How did u make your intake, we have problems to let the intake smoothly suck the disks into the robot
Definitely the hardest part of the game this year. The wheels we used work really well in all of the sizes. I’d recommend using those!
What do you use to pull in the discs like what are those rollers on the intake
flex wheels
What RPM is that flywheel at?
4200
Is the height of that robot actually 18 in?? Looks big ash
YOOOOO🔥
Can you post the cad for this?
Hi did you robot use pneumatics?
yes they use pneumatics
@@slightyburntporkchop6644 okay thank you
How many actuations can you get with the indexer before you run out of air?
Just tested it and we got over 50. It's single acting and banded back with 2 reservoirs.
Why did you go with a 2 motor intake?
We wanted to go with a 2 motor flywheel because the 1 motor ones looked bad that we saw before we started building. So then we are left with two motors so do an intake. If it wasn’t a 24 hour build we would have ratcheted the intake off of a drive possibly and gone with a 6 motor drive.
How heavy is your bot?
Hi, I always wanted to get into robotics since it peaks my curiousity; how did you start?
piques
what wheels are you using for the shooter?
One black Vexpro wheel. The 60a one I think.
Hanzhen harmonic drive gear , strain wave reducer,
robot joint , over 30 years experience
Why didn’t you use Omni wheels?
For the 24 hour build window we felt we didn’t have time to get a x drive fully built and incorporated with the rest of the build. We still believed that the ability to straif is a huge advantage in this game so we went with a meccanum drive. X drive was our first choice tho.
Do u think u can run one motor for all intake and roller
On a tuned robot that is designed well you probably can. We kinda rushed it so it’s not as smooth as it could be.
1:18 endgame expansion prophecy?
tp roll expansion op
What style of wheel is used for the flywheel?
The black 4 inch vex pro wheel
@@matthewpreis8613 aren’t those illegal in vrc? Has there been an update on legal wheels?
@@arjunverma3318 Yes, the vex pro wheels were made legal for VRC during change up
What gear ratio for the flywheel?
7:1 on 600 rpm motor cartridges
YOU WANT SOME JUMBALAYA TICKETS FOR JUNE 11th
Did you have any issues with the flywheel motor overheating? Also was 3000 not enough to get the distance you wanted?
Bot looks absolutely crazy. Props
Thanks.
We decided to go for 4200 because we saw some people running 3000 and thought it looked a little weaker than we wanted, and we had already planned on 2 motors so we had plenty of torque to work with. I didn’t notice any overheating in the flywheel, the Drivebase was the major limiting factor for how long we could run it as it dies of overheating long before anything else.
A really good way to over come this is to make the spin wheel very heavy.
The motor will have really hard time during the first few seconds but afterward the wheels own weight keeps it going and the motor barely does anything and won’t overheat
@@reconnecting5370 yeah so basically by increasing the mass of the flywheel, you are increasing it’s rotational inertia. This means that although it will take longer to initially spin up (as it’s increased inertia causes it to initially want to stay at rest), it will have a better time with speed recovery as once it get to max speed it’ll want to remain there.
@@662bkepler I had our team build a similar shooter, same dual 600 RPM motors, same 7:1 gearing. Same black wheel. Gears and motors carefully aligned, no excess friction, and shafts, bearings and gears lightly lubricated. At full power to the motors and no disks being launched, the motors can't even get the wheel up to full speed. Motors are running at full power, and only getting to about 500 RPM. The don't immediately throttle due to heat, but launch a few disks and they do. Not sure what might be wrong. Thinking of skinning the sides of the wheel with smooth plastic to cover the spokes and reduce air drag. Did you do that?
PLEASE MAKE AN IN-DEPTH GUIDE
Sensors?
For the robot in 24 hrs we didn't want to add any. Right after we were done we added a GPS sensor on it to test out that system with auto aiming and it worked pretty well. We also would add a color sensor to the front of the bot to automatically flip the rollers instead of having to do it by line of sight.
@@matthewpreis8613 are you doing auto aim by moving the robots drive or do you have something else moving
@@GGremlin-fr5fy The whole robot automatically turned to face the goal using the GPS sensor for positioning data.
Chat does anyone have instructions
noah op
can it only hold 3???
Yes, as according to the game manual you are only allowed to possess up to 3 discs at any given time.
I have a slight clue on how to beat it but it ain't gonna be easy
you guys are vex u right?
I hope so or I’m in trouble 😭
yes but this bot is completely high school legal
Music Name?
Strangers by Veorra
more polly carb then your allowed no?
It might be slightly over. However, it’s the idea that counts. Much of that poly can be replaced with an alternative part, like plate.
Sauce
And then... the cata nation attacked-
Wow, this is amazing even in such short time!!! Do you have a cad file?
We do not.
24 hours is such a time crunch that there really isn’t much time for CADing
wtf
Imma be honest great content but i need more emotion in that voice. I don’t rember much from the video and i just watched it. I’m sure
flemx whell
Could release an instruction manual tbh
I will give you 1000 dollars
Venmo: Matthew-Preis lol
@@matthewpreis8613 I will take that deal let’s stay in touch 💀 drop the discord
I think me and my team are trash
mid ngl ;)
we have a better robot
this is just too good
what wheel is that on the flywheel?
What is the size of the flex wheels?
PLEASE MAKE AN IN-DEPTH GUIDE
PLEASE MAKE AN IN-DEPTH GUIDE
PLEASE MAKE AN IN-DEPTH GUIDE
PLEASE MAKE AN IN-DEPTH GUIDE
The point of vex is to figure it out yourself
PLEASE MAKE AN IN-DEPTH GUIDE