Division vs Walking Hammer? Norwalk Havoc July 2022 Tournament (3lb Beetleweight Combat Robot)
ฝัง
- เผยแพร่เมื่อ 10 ก.ค. 2024
- Division faces off against some of the most powerful and most unconventional combat robots in the entire world during the first day of the July 2022 Event! Thanks to PCBWay.com for providing integral parts for this robot to come to life!
Purchase the full Division V3.1 design here! bit.ly/DivV31CAD
Free upgrade to V3.2 (July 2022) when available.
FormFutura Centaur PP Filament: amzn.to/3ShS9Nu
Just 'Cuz Robotics Website: justcuzrobotics.com/
Just 'Cuz Store: justcuzrobotics.com/shop
Try PCBWay's CNC Machining or PCB Fab using this link for a $5 new user credit: bit.ly/PCBWayJustCuz
Intro music: Grant & Ellis - Dead Man Walking
Instagram: @JustCuzRobotics
/ justcuzrobotics
Bloodsport TH-cam Channel
/ bnsrobotics
@bloodsport_battlebot
/ bloodsport_battlebot
@retrograde_battlebot
/ retrograde_battlebot
Bloodsport/BnS Facebook Page:
/ bnsrobotics
Music by Karl Casey @ White Bat Audio
#CombatRobotics #beetleweight #battlebots
Chapters
00:00:00 Preparation
00:01:56 Fight Highlights
00:02:46 Intro
00:04:30 Fight 1 Opponent
00:05:53 Fight 1
00:08:50 Fight 1 Commentary
00:10:15 Postfight Interview 1
00:11:20 Fight 1 Damage
00:12:35 Fight 1 Repairs
00:13:12 SPONSOR: PCBWAY
00:14:02 Fight 2 Opponent
00:14:29 Fight 2
00:17:58 Interview on Stream
00:19:43 Fight 2 Commentary
00:21:00 Opponent 2 Damage
00:21:51 Opponent 3
00:22:23 Fight 3
00:24:00 Fight 3 Commentary
00:26:06 Postfight Interview 3
00:28:36 Fight 3 Damage
00:30:44 Reflection - วิทยาศาสตร์และเทคโนโลยี
![Billet Metal Chassis - Good for 3lb Combat Robots? [Subtraction V2, March NHRL Event Recap]](http://i.ytimg.com/vi/_YVKZTy4j9U/mqdefault.jpg)
![Division V3: Roofshot Time! Norwalk Havoc April 2022 (3lb Beetleweight Combat Bot) [Part 2]](/img/n.gif)
Totally forgot to mention, but my webstore has merch now! Just 'Cuz T shirts at the moment, with more to come soon. bit.ly/justcuzmerch
Spine Crawler is such a cool design. I love seeing interesting drive systems.
Something I really like about robot fighting is never leaving an event without something that you know you need to fix or improve upon. It’s like an endless cycle of designing and building and destroying it again and I love it.
Can’t wait to see what Division has in store next event!
Me too! I think if it went through a couple design iterations it could be pretty legitimately frightening.
3:14 "But every robot.. ...is a dangerous robot"
Spine crawler is a danger to my sleep paralysis demon.
Words cannot describe the emotions I felt watching that... Thing
Evan arias is such a nice guy, but with such a deadly bot
Props to the builders of Spine Crawler for making such a cool bot knowing what fate awaited it.
I could tell when you were fighting it that you were thinking, "I want to *destroy* a robot... but not this one."
all i can think of then i see a finger teach blue beater bar is your fools video love it
Always love seeing Division fights. Excited to see part 2.
Another video, we love to see it
So cool to finally see this fabled fight. I got to meet some of Evans teammates at IRFC on that same day and DAMN those 3lbs bots are amazing. Candy Striper was chucking other beetles like Shredit Bro does and some of them went straight at my head as I was box side judging. Evan and his team are such cool guys and really experienced. Can't wait for the grudge match video and your future Norwalk runs. Also, PCBWay get this man some batteries
Haha yeah it seems like it was a long time coming. Thanks for the kind words!
A very well put together video.
Thank you!
i remember seeing a fork configuration of yours that helped to prop beater bars coming from the front into a more advantageous position for division to get better purchase. I think a more robust itteration of that line of thinking could really make division a real threat for the next Norwalk!
Cant wait to see part 2 of this comp. Hopefully the next revision works out better. Also,how did the polypropylene parts hold up? And do you believe after seeing how it holds up at norwalk that polypropylene can replace tpu and nylon parts in these bots?
I think PP can replace most Nylon parts and some TPU parts. It's about half as rigid as Nylon and like 8 times more rigid than TPU but still less likely to shatter than Nylon. I think any part that truly needs the flex of TPU would work better in TPU. It also is kindof expensive but the benefits in terms of its much lower density, material properties, and ease of use outweigh the cost IMO.
I will almost certainly stick to TPU for wheel hubs as those I want to flex and also I don't think the Sikaflex will bond to PP at all as it is urethane based and TPU is a urethane as well.
Man.. that first fight was brutal. Division took it like a champ, but physics just weren't going to allow Division to win that fight. You had a lot of stuff to fix up, but for the most part, it held up better than most bots would have for sure.
Honestly compared to past performances I was surprised how easy the repairs were. After fighting Eruption with V2.12 or whatever I had to spend like 2-3 hours rebuilding my bot. The old drive system was mechanically much less robust and at least 10X more prone to failure. This new system is infinitely easier and a bit cheaper to repair if it does fail too.
i am really intrerested in seeing how shrapnel mine's upgrades are going to fair in battle
For facing beater bars, you could design something modular where the weapon and uprights get swapped out to install a smaller diameter blade or even a small drum sticking out the front of the chassis. Both ideas to just improve tip speed for winning engagements. Other than that I’m not sure what sort of front attachments or blade design would fair any better than what you’re running currently.
Removing the big blade sorta defeats the purpose of the design. Division is not a meta robot. It was never intended to actually win the golden dumpster and I know that it probably never will. But I like cool and interesting designs and I wanted to try pushing it to the limit of effectiveness, so I'm still chasing the last little bit.
My idea for beater bars: On one of the chassis, move the spinner back further in the chassis against beaters. So that it would hit only the front, not the bottom of the spinner, and could probably self right easier when tipped back (instead of simply skidding like you did at 22:33 in the Shreddit fight, and a whole ton against Fallout).
I know this would be pretty difficult to build, but it should be able to fight beaters better.
The uprights that hold the weapon are a separate bolt on part as you can see in the first couple minutes during the timelapse. It's not hard to adjust the weapon position at all but I'm not sure if it would provide any benefit.
The skipping on the back thing is definitely a problem. I think that's due to the 'fins' at the back sticking out to the point where the weapon circle is like parallel to them, I'll probably just change that to make the bot more easily tip forward like I had on V2.xx
tall center forks? feed to bottom of the drums into the weapon might make it more likely to hit something like the weapon motor unless you already tried this :|
Watching a few videos i wonder how much damage you do to yourself when flying around the arena with your weapon lol.good way to test your connections and soldering though holds up well for how often it happens
The bot is built to handle bouncing around. It's not really a problem.
Always balance, and the moment you are done with the battery, storage voltage charge them
I know that. I've been doing this for a long time. The batteries had been at storage charge and were balanced when they were put into storage. I left them for probably 5-6 weeks untouched after the April event and then suddenly, bad cells
Do you know if you will be competing in june's 2023 norwalk havoc it might be my first combat robotics tournament
I don't really plan things that far in advance. If nothing comes up around then I'll probably be there.
One thought I had, about going up against egg-beater style bots - instead of having forks or a wedge at the front, what if you had your own smallish egg-beater but completely free-wheeling? That way the impact and rotational speed of the egg-beater gets transfered into your free-wheeling one which just spins and takes away all of the kinetic force and turns it into harmless rotational spin? Would that work at all? Or would there still be enough force to overcome the free-wheeling aspect and cause you damage? Or maybe that would cause weight issues? I dunno, was just a random idea that popped into my head a few moments before typing this out lol
Due to the conservation of energy principal I think the best possible case for a beater bar hitting a free spinning mass would be that it just reduces the speed of the beater bar by around half and the frees pinning mass gains about half that energy into itself. But then the mass would need the same rotational inertia as the beater bar and that would require substantial weight, probably more than my current weapons! I don't think it would really help me all that much.
I have considered turning my weapon off just to provide fewer catch points for the beater bar to hit but right now my front forks seem to bend up and get hit instead which is just due to poor design for that part so I'll need to rethink those.
@@JustCuzRobotics Huh, yeah I don't know why I hadn't even considered the laws of conservation of energy. You're dead right, at best the energy transfer would equal out making it pointless - and yeah very heavy. Plus, if you're gonna have a beater-bar of your own, might as well make it motorised and turn the robot into one of those instead.
Oh well, goes to show being massively tired and writing down the first thing that comes into your head before you fall asleep isn't maybe the best thing for new ideas lol.
how big is the weapon on division?
7.5.inch diameter. There are a million details about this design in my other build videos and design overview videos.
What about mounting the forks lower on the front of the chassis? It would give the forks a less aggressive angle when contacting the floor and maybe dig into it less. Though you'd need to increase the size of the ridge on the top of your forks to bring the opposing robot up to the same height relative to your blade.
That certainly might help. I wish there was a good way to test this sort of thing but short of buying a beater bar and mounting it spinning in my test box and driving into it I cannot think of any. And that would be a lot of work and money. I think I may have to try something that springs the forks down as well.
@@JustCuzRobotics could you print a tpu bar for your practice rig? (Just to make it less damaging during testing. )
@@JustCuzRobotics Maybe you could attach the forks lower, but have a big triangular style fork, designed to make them bounce up into your weapon instead of simply over them and hitting your weapon from below.
I'd personally choose an angle similar to what you'd have against a horizontal, but as a fork instead of a full wedge.
I wonder if some kind of wedge shield will be able to deflect the beater bars and make them flip upside down. I'm still learning and don't know much about this so idk.
Sadly, Division has the same weakness as Deep Six and Uppercut; it’ll always lose a weapon-to-weapon hit to a vert with a smaller radius, and therefore a higher RPM.
It’s why Uppercut lost to Bite Force and Riptide, and Division lost to Shreddit Bro
Ok, you went over all that in the video. But frankly, if you can’t beat a FTBB, how can you hope to be competitive? I’m just askin plz don’t be mad :c
K well you went over that too. TBH if its just about winning here, I would just retire Division and put all the work into Shrap. Mine
This is very ironic given that I just competed last weekend at an event where Division got second place 🤣. Shrapnel Mine needs a lot of work to be competitive and probably never will be as good as the best of the best bots. But it's a fun engineering project as well.
@@JustCuzRobotics I wouldn’t give up just yet. No one remembers the ones who just copy the best. Those people tend not to win either, as they never do better than the people they’re copying. As Shrapnel Mine is an outlandish design, if you could just fine-tune it, you could be close to a really close design there.
I have to ask, though, how many FTBBs did Division face in that tournament?
spine crawler was a good win, but not a good fight
All right, time for my ideas to beat beater bars. I'm sure you will say it won't work but I don't care. 😋
Get rid of the middle forks. They don't work obviously. Make the tip of your weapon hinged, on the side where your weapon should hit. That way you can still hit just as hard (if the hinge holds up, which is kinda difficult to do I guess) but if you design the tip well the beater bar just knocks the tip up into a rotating motion, hopefully not really getting a good bite on your weapon and not launching you. You will probably be screwed anyway because of the inbalance on the weapon, but maybe it can work...
Even if I could hinge part of the weapon it would definitely not hit just as hard, the tip would just flop back when I tried to hit things and do nothing. And the imbalance like you said would be a massive issue.
@@JustCuzRobotics that´s why I said the front part. It´s hard to explain but you can put the hinge on the side of the weapon so that it moves into the rest of the weapon:
| |
| |
--------------O
\ \
\ \
\ \
------------------
And you might be able to design the tip in a way that the imbalance is minimal. If it's not clear I will make a quick cad model if you want.
@@JustCuzRobotics I think what they were going for was to have the hinge maxed out so it could only articulate when hit from the bottom.
I think the tips would rapidly become projectiles if they were hinged. Otherwise it was an interesting idea.
-- Having recently watched hours upon hours of your content in the last two weeks (literally spend an hour or two watching your stuff every single day) I' say you've really done great work with reliability. Not a whole lot of derp, but wouldn't expect that in the 3lb class.
Honest assessment speaking of Division: Through a lot of time, experience, and brilliant engineering you've taken a bad design and made it competitive. A robot shouldn't bounce around all over the place like that, and if it does, it shouldn't survive. Yours does. Since you're doing great with durability, I'll skip that. Your weapon needs to come down lower to the deck maybe an inch, and it's reach needs to be improved by about that. A lower weapon would mean a slightly smaller weapon in circumference so perhaps you can offset that loss with a higher tip speed and better center of mass.
Just some thoughts. I don't do this for a living. I work on aircraft (I'm not a mechanical engineer) and build performance vehicles.
Your bot should be able to do what it's doing, but it does. Hats off. Think you might find more success with a more conservative weapon build.
Thank you! Yeah it definitely is a huge tradeoff with the 7.5inch weapon diameter. The weapons are about the only thing that has stayed between V1 to V3. It concerns me that I may lose the character of Division by making it smaller. I definitely could make a different archetype much more competitive with similar parts though. I think there is room for a vertical spinner on SSP to be super good someday!
As a minor musician (of sorts - I'm a fusion drummer🤭), I'd like to see Division let loose on the dreaded 🎵Auto-Tune plugin used at the beginning of the video.
If people can't sing without such 🐂💩fakery they should learn to play an instrument, stick to making the coffee and sandwiches, or stay out of recording studios altogether...