/r/FRC

Photograph via snooOG

Reddit's home for the FIRST Robotics Competition!

Image by /u/Mr_Moko


Welcome to the sub-reddit for the international First Robotics Competition (FRC). From FIRST’s website “We call FIRST Robotics Competition the ultimate Sport for the Mind. High-school student participants call it “the hardest fun you’ll ever have.” Under strict rules, limited resources, and an intense six-week time limit, teams of 20 or more students are challenged to raise funds, design a team "brand," hone teamwork skills, and build and program industrial-size robots to play a difficult field game against like-minded competitors. It’s as close to real-world engineering as a student can get. Volunteer professional mentors lend their time and talents to guide each team. Each season ends with an exciting FIRST Championship.”

Rules

  • No spam.
  • No donation posts (with notable exceptions)
  • All posts must be directly related to FRC or other FIRST programs.
  • Be respectful and appropriate to all other members of this sub-reddit.
  • Refrain from making posts or comments of a political nature.
  • Follow all reddit-wide rules.
  • Follow general reddiquette.
  • Remember the human.
  • Rules are interpreted and applied by the moderation staff, and decisions made are final.

FRC Links

Other FIRST subreddits

  • r/FTC (FIRST Tech Challenge)
  • r/FLL (FIRST Lego League)
  • r/FLLjr (FIRST Lego League Junior)

/r/FRC

45,389 Subscribers

7

Is there anything your team does for "good luck" or maybe it's just a tradition.

For our team it is said that we have better luck on our even years (2022, 2024, ect...) than our odd years. We also have a joke that if you can't find something and you ask one of the coaches for help and they find it for you with relative ease that you owe them a steak dinner.

6 Comments
2024/04/30
02:44 UTC

43

Found this on the bus

0 Comments
2024/04/29
22:16 UTC

9

Old year pins

I recently had some of my old year pins break and was hoping some team had some laying around in a closet that I would be able to replace them with.

Let me know if you have any of these laying around, I would be happy to pay for shipping.

FRC 2012 Rebound Rumble

FRC 2013 Ultimate Ascent

FRC 2015 Recycle Rush

FTC 2014-2015 cascade effect

4 Comments
2024/04/29
21:40 UTC

76

Our code captain has way too much time on their hands...

https://reddit.com/link/1cg7tj6/video/qv5f9q6eygxc1/player

The best part of every Crescendo event is the classic Cha Cha Slide when there are HOURS of tech difficulties on field.

5 Comments
2024/04/29
19:22 UTC

99

They haven't seen me after a competition

6 Comments
2024/04/29
01:27 UTC

64

End of season thoughts

My team, 9492, has just finished our on-season. Being a rookie team has been challenging, and we've still got a long ways to go. We're about to enter what I've dubbed "Second Year Syndrome", where a team doesn't have the advantage of being a rookie team (extra points, more award opportunities), and also has the disadvantage of not being a veteran team (lacking experienced members), so I've been feeling on edge.

I was wondering if any veteran teams had any suggestions of what we could do during offseason.
Should we prioritize attending off-season competitions, prioritize expanding our knowledge, prioritize outreach?

Any advice is welcomed!

24 Comments
2024/04/28
21:38 UTC

64

How do teams make the field so accurate?

A big problem we had this year and in previous years, that the field wasn't accurate enough, this lead to our trap/amp shooting not being accurate and sometimes throwing away matches because we didn't have pinpoint accuracy

In the next years we want to make it as accurate as possible

Any useful tips to do so?

Edit: we have the CAD models and we build according to them, but there are still some inaccuracies we would like to get rid of

18 Comments
2024/04/28
13:58 UTC

27

How much better a Kraken motors?

Hello all,

For context, my team ran swerve(Mk4i's) for the first time this season. We had great success even with the L1's and Neo motors(though we did burn through a few neos). So as I was deeply interested, I delved into the swerve rabbit hole and started to design my own modules. At first, I went through a few design ideas, and trashed a couple as well.

(This was about the same time as FIM states) so when our team went to states, I decided to meet Stryke Force about their swerve modules. Now, prior to this, I was trying to reinvent the MK4i's and was not really succeeding. But seeing the double wheel idea(not to mention the 3in wheels), I decided to model mine off that. So then, I asked myself, "with virtually unlimited traction, how much pushing power do I want vs speed". And to be honest, I still am not sure. I asked the question before in a previous post about gear ratio, and got some decent insight, but nothing ground-breaking.

Now, I say that to ask this: How powerful are Krakens in comparison to Neos? Will using krakens with a torque ratio, give the same/similar speed output, as using Neos with a speed ratio? Our team bought krakens for next season so that's what we'd be using, which could change what gear ratio I'd want in order to be fast, and still be able to move mountains(figuratively) on a 3in wheel.

I honestly don't even know if it's possible to have both, but shoot for the stars right? Any advice/insight would be greatly appreciated! 🙏 Thank you all!

16 Comments
2024/04/28
05:56 UTC

41

Test Drive Video (Recreational FRC)

This is the drive test video of 2003 FRC build I'm making (1 motor was down)

2 Comments
2024/04/28
00:46 UTC

142

Water game reference?

Our bathroom flooded

5 Comments
2024/04/28
00:46 UTC

436

This is what what gracious professionalism is about.

I am a former member of team 88 and my brother is also on 88. He went to the world championship in Houston, Texas but unfortunately lost his wallet at the event. That wallet meant a lot to him as it was a gift from our parents to him from when we went to Italy. I am away at University right now but i just received a message from my mother stating that my brother received a package from Hawaii containing his wallet with absolutely nothing missing in it. I don’t know who it is that sent it but I want to say publicly here that what you did was the pinnacle of gracious professionalism and as a First Alumni and a team 88 Alumni, i would like to thank you deeply. You are a genuinely good person.

25 Comments
2024/04/27
18:45 UTC

58

I read somewhere they are changing the location of the championship, is this true?

i vaguely remember reading something on FIRSTinspires or something like that and it explained how the Brown convention center would be used for 2018-2024. I don’t know where i read that, it saw probably about 5? months ago. has anyone else seen something like that or am i just implanting information into my head

47 Comments
2024/04/27
03:37 UTC

20

Tips to create an elevator?

I'm a freshman and our team thinks next year could use an elevator, so I'm creating one in the off season to tweak to perfection early in build season. Any tips to making one? And how to power it?

6 Comments
2024/04/27
03:04 UTC

63

Can I use gears as shown for a turret? Also will I be able to get away with using 1/2" PC to make them? (Custom made that's why they look goofy)

16 Comments
2024/04/27
02:05 UTC

151

Swerve drive 2

If swerve drive is so good why don’t we have swerve drive 2

7 Comments
2024/04/26
23:15 UTC

3

Exporting usb order from driver station

So I had this idea for our team’s driver station. Is there a way that I can export the USB list with the names of the USB device and the ID? I want to make an ID system next to the Xbox controllers so they know which one is primary and secondary. I was planning to use an e-ink display or a dot matrix screen. If anyone knows how I can export it, that would be great.

0 Comments
2024/04/26
21:11 UTC

23

Hallo I'm new to FRC and I want to do programming/code

I have basic knowledge of Python coding and have learned a decent amount of Java in the past. However, I'm unsure how to apply code to a robot or prepare for next year's FRC in general since competition season is over. Should I just stick to watching video tutorials and brushing up on my coding more?

8 Comments
2024/04/26
06:27 UTC

28

2024 Houston World Championship Recap

5 Comments
2024/04/26
05:30 UTC

97

Rethinking the four motor rule.

I think that the four motor rulefor driving is kind of ridiculous, it benefits swerve and negatively affects tank when the goal was to level the playing field. Swerve is very expensive and is the best option right now. I think that the rules should be that there are 8 drive motors total and motors that are used to steer count. This would mean one could have a swerve setup or a eight motor tank setup which would make tank more usable whilst not affecting swerve. This would also allow for innovation and more forms of driving that may be even better than swerve I for one have some ideas that could only be accomplished with this rule changed.

41 Comments
2024/04/25
21:39 UTC

43

Interesting idea on how to teach new students CAD

I was thinking about ways to get new students a feeling on how actually CADing a robot would be like. I thought, what if you pick a random 2021 game idea finalist and you have them design and CAD a mechanism that can perform at least one function in the game. You can get roughly enough measurements from the game submittions to design and CAD something and I think it's a lot better than making them watch endless tutorials about whatever CAD program you're using.

10 Comments
2024/04/25
21:19 UTC

48

Concerns about this year's leadership structure

Hello! I wanted to get y'all's opinion on the way my team is structured.

We only allow (incoming) sophomores and juniors to be leads, and elect a junior president (sophomore if there aren't any juniors). Seniors are not allowed to hold leadership positions, and are essentially forced into a supporting/mentor role.

Personally, I don't feel that this is sustainable, because it doesn't incentivize seniors to stay. It is very important that seniors pass their skills down before they leave, but the best way to do that is by allowing them to hold a leadership position.

My view is biased, so I wanted to see what y'all thought, and how your teams are structured. Are they structured similarly? And if so, how do you incentivize seniors to stay?

13 Comments
2024/04/25
14:59 UTC

157

Guys for 2026 I heard the theme is going to be an oil game

You have to build a fully functional fighter jet and bomber task force to control countries that have oil and annex them for the “glorious country of FRC”

20 Comments
2024/04/25
11:08 UTC

33

Woohoo more concept card designs :D

Kinda wanna change the FIRST logo so that it’s actually linked together

3 Comments
2024/04/25
05:05 UTC

156

How do you even do this

30 Comments
2024/04/25
00:16 UTC

43

Swerve for robot

My team is trying to buy for the first time Swerve for our drivetrain, but we have little to no experience on the topic, the Swerve that stand out the most are the ones from REV, Can sonmeone please let me know if Rev is actually a good option for swerve or should we get the ones from Andymark?

31 Comments
2024/04/24
22:25 UTC

95

Leaf blower robot

Can we all talk about the robot that had the leaf blower to open up the traps, me personally I think they deserved that creativity award because I don’t think anyone would’ve come up with and it was just so random but like I really wanna know you guys’ opinion on it. I found it interesting.

14 Comments
2024/04/24
17:39 UTC

66

2025 field leak?

5 Comments
2024/04/24
17:15 UTC

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