We built a BattleBot. It's terrifying.

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We built the 250 lb combat robot Switchback for the latest season of BattleBots (2022) with a team of 11 engineers. With an 80 lb drum spinner on the end of a 180 degree articulating arm, Switchback is full of engineering challenges. And we had only 3 months to get it working…
You can watch the Switchback fights here:
• I WANT A SUPLEX AND I ...
www.discoveryplus.com/video/b...
www.discoveryplus.com/video/b...
www.discoveryplus.com/video/b...
You can follow Team Switchback on Facebook and Instagram:
/ switchbackontv
/ switchbackontv
A huge thanks to all my Switchback teammates:
Greg Needel
Christina Needel
David Yanoshak
Amanda Morrison
Orion DeYoe
Gabby DeYoe
Frank Lima
Phil Luetchford
Parker Holloway
Wolf Thomas
Noah Santoni
Music in this video:
Dust till Dawn - Dusty Decks (Licensed through bit.ly/epidemic-sp)
3house - Ooyy (Licensed through bit.ly/epidemic-sp)
Like Shadows (Instrumental Version) - Ooyy (Licensed through bit.ly/epidemic-sp)
my reverie - bomull (Licensed through bit.ly/epidemic-sp)
Hemisphere - Ooyy (Licensed through bit.ly/epidemic-sp)
Rock Steady - Henrik Andersson (Licensed through bit.ly/epidemic-sp)
Nanda Devi - Ooyy (Licensed through bit.ly/epidemic-sp)
my reverie - bomull (Licensed through bit.ly/epidemic-sp)

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Опубликовано:

19 авг 2022

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Комментарии : 969

@StrangeParts Год назад

Sign up for Nebula for just $4/month to watch the the extended version of this video right now: nebula.tv/videos/strangeparts-how-we-built-a-250-lb-battlebot

@Shocker99 Год назад

You replied to a comment i made on this video and I replied back but i'm yet to hear an answer off you. If you have the time, i wouldn't mind a response please.

@kreebog Год назад

I love you guys, but the last thing I need in my life is ANOTHER streaming platform... Best of luck to you with that.

@thejohnbeck 11 месяцев назад

Most important question. Is that a cup from Dickey's BBQ? At 9:12

@AquarianSoulTimeTraveler 6 месяцев назад

I think your design is really well I think it would be awesome if you coupled that with artificial intelligence I like how you can keep your weapon away and get it spinning up then drop it in on someone.

@dropkickdojo Год назад

From my experience at BB my advice to new builders is don’t build your first combat robot trying to do things the “new way” brushless drive is far less reliable (but sometimes necessary due to space constraints). Also the Battlebots floor is really difficult to get good traction on so small, hard, smooth wheels are usually not the best choice if you have a high center of mass. With all that being said, tremendous props to this team and what they accomplished. I’m sure they learned all of those lessons before they even left the event. I love this video and the bot is a really neat concept and I’m sure they’ll be back even better next season!

@wrlprchnx Год назад

I'm going to guess that with brushless motors you end up blowing up the controller boards pretty frequently... my experience with eletronic controllers is that they aren't particularly fond of vibration - getting sufficient isolation for the board so that it works reliably in competiton must be terribly difficult.

@rickhunt3183 Год назад

@@wrlprchnx I've never examined a failed speed controller board to determine cause of failure, however I would guess heat buildup due to large current demands and insufficient cooling would be the main causes of failure. Vibration failure can easily be overcome using polyethylene or a polymer resin to encase the parts so the components and circuit boards can't flex. Once that's done the components will be held rigidly in place. Heat dissipation will be your primary concern after that. The only method I know would be to used a water cooled heatsink that's also encased in the polymer resin making direct contact with the FETS using thermal epoxy. I'd consider using a couple of negative coefficient temperature sensors connected to a ESP-8266 to monitor temperature and control the cooling to critical components. Just my thoughts. Maybe you have alternative solutions you're considering.

@alvieteal4980 2 месяца назад

I don’t understand how not tinning the wires caused a dead short. That sounds like something I’d say at work to cover up for a mistake I made that destroyed a piece of equipment 😂😂😂

@dropkickdojo 2 месяца назад

@@wrlprchnx it’s dumb easy and most of us let the ESCs just flop around inside the robot. It’s overdraw causing them to burn up that usually kills.

@mihec87 10 дней назад

@@alvieteal4980 Because wire for windings have coating(non conductive) so they dont short, when they crimped them, wire never made a proper connection to connector because of that coating, but when you solder you burn off that coating. In order to make proper connection with that kind of wire you need to scrape, sand or burn away that coating.

@EvanMJones Год назад

Awesome to see a bunch of REV Robotics people on a channel I like, they're super helpful when it comes to my FIRST teams.

@StrangeParts Год назад

The REV folks are wonderful. I met Greg in China, and had a blast meeting and making friends with everyone else while I was in Dallas.

@BinkiklouGaminglol Год назад

Same, I was suprised when he said at the start of the video that he was at REV headquarters, to see that these were the same guys that made my FRC & FTC parts

@joran4612 Год назад

Nah its really annoying when you are from the Netherlands because shipping and customs are super expensive and you cant get the stuff from other places

@REVrobotics Год назад

@@joran4612 we always try to make it as easy as possible for teams all around the world, but international logistics is not easy or inexpensive. We are always trying to improve our process, please feel free to reach out to us with any concerns you have.

@AKSoapy29 Год назад

This is awesome, reminds me of my time with FIRST robotics, I miss those days. Cool to see this is at REV, I don't think we got parts from them until later on (2015/2016). Never had brushless motors though, they look awesome. Also, I love all of the robotics shirts. 2169 represent!

@joshkarpoff3341 Год назад

Greg is awesome! He had a goal over 20 years ago to work in robotics and he's achieved more than I think even he ever thought possible. He and I (with others) were co-founders of our university's robotics club (MDRC at RIT, go Tigers!). Best of luck Switchback team!

@robogreg Год назад

its been quite the ride.....🙂

@joshkarpoff3341 Год назад

@Karl with a K Greg co-founded Rev Robotics which makes components for educational robotics systems, especially the international FIRST Robotics Competition that get hundreds of thousands of high school age students hands on involved with robotics every year. He and I go back almost 20 years and seeing how our discussions of what we wanted to do with our talents and skills have panned out, Greg is definitely doing what he wanted to do so many years ago. So to bring the experience he's gained from designing robot components for so many years back into BattleBots, which so heavily influenced all of us in that university robotics club so many years ago is great to see.

@biggiecheez6879 6 месяцев назад

@@karlwithak.Post the video. I want to see it

@Pryside Год назад

the vescs getting destroyed is a very common issue, try this: Solder a 50V TVS diode directly onto the pcb. Adding a low ESR cap also helps but that will increase bulk a lot. The vescs dying usually happen because of voltage spikes, tvs diodes and caps help with that a lot!

@ernestohernandez3599 Год назад

glad to see more of your videos hope you are doing better thanks for the great videos

@dominiqueeybers9186 Год назад

I second that

@leozendo3500 Год назад

Your esc needs to be be rated 10 times the motor power rating because the way motors are rated is weird. You might need special rc buffered esc because the load is rather unpredictable.

@leozendo3500 Год назад

by RC i mean resistor-capacitor in series connected to all three phases of each output

@colinmetzger6755 Год назад

Could also design it so that your ESCs sink heat into your frame.

@revimfadli4666 Год назад

Also the static buildup from spinners(which act like van de graaf generators) could mess them up I wonder if OHKOs by spinners that turned out to be receiver errors, happened that way in the show

@andrewong1254 11 месяцев назад

The ESCs and Motors alone cost well over a thousand for battlebots of this size 😭

@andrewong1254 11 месяцев назад

Meaning if you have 4 wheel drive with 4 motors… that’s roughly over 8 grand. Double it due to testing and having spares, the cost exceeds 20 grand for just motors and escs

@minxythemerciless Год назад

When it's spinning at top speed, the steer torque will be impressive. Turning a corner could well flip it over.

@samuels1123 Год назад

If it turns using tank steering and raises blade it would probably do ok

@Max_Marz Год назад

something something Wrecks, something something highest kinetic energy spinner at the show.

@jek__ Год назад

spin it the right way and it could be gravitationally stabilized no matter how you flip it over! :P

@yuxuanhuang3523 Год назад

I was thinking the same thing, this bot looks too simple electronically to handle well. battle bot have been too concentrated in getting good mechanical design, but good electronics, sensors and microcontrollers is also really helpful in controlling. I wonder why few ever go past using simple RC parts, even a flight controller will help with stabilization

@gchampi2 Год назад

@@yuxuanhuang3523 I think the sheer amount of power being pumped through the systems may limit the complexity of the control systems. One of the other robots this year blew up 3 ESC's in their weapon setup, and had to revert to a spare that was only rated for 50amps. It took their spin up time out to 15s instead of the 3s they were used to from the (IIRC) 300amp setup they had grenaded. There are many reasons to stick with proven "dumb" systems, including ease of setup, ease of troubleshooting, peak current capability, reliability, ability to survive the combat environment, and overall cost. More complex systems tend to cost more, and add more failure points - and if a system can't survive being hit with a flamethrower, having a 100lb steel bar spinning at 250mph slammed into it, or being dropped from 12 feet up onto a floor made of 1/2" steel, potentially all at the same time, then the average roboteer won't use it.

@zenmark42 Год назад

It's so weird to see pre-injury video now; because I kinda noticed something but didn't really think about it until after you said something. I'm really glad you're talking more about the hard to quantify effects of brain injury because I've had a couple different friends experience traumatic brain injuries and have their lives turned upside down just with the symptoms still left after everything was treated and "okay". I've always loved your work and I'll be sticking around for whatever you wind up doing even if you just want to start doing vlogs about living with the brain you've got. Either way you'd be providing really helpful and relatable information for people to live their lives better.

@manorin Год назад

Looking back at his update video, He did say he was hit in the head by a falling pipe at a warehouse in Dallas in July. Which was when this video was originally shot :/

@nabicx Год назад

@@manorin i think you're on top something

@Tictacpanter Год назад

Glad to hear you are on Nebula Scotty! And if anyone needs encouragement to join, I’ve had the Nebula/curiousity package for 2 years now and it’s absolutely worth it.

@marksawyer6242 Год назад

Just signed up for curiosity stream, but I cant see how to access Nebula from there. Is it Geo Restricted to the USA or something?

@thehackerproject100 Год назад

The comment I was looking for. Thank you.

@CRneu Год назад

MAJOR kudos to the safety mindset on this build!! what a great team to be safe and produce a great product.

@kingofcastlechaos Год назад

Agreed! I build non-combat robots and mentor FRC teams. One of my criteria for a team member to be anywhere close to a hot bot is "Are they sufficiently terrified?" This thing gave me chills!

@groundcontrolto Год назад

I remember test driving my (small) robot the night before a competition and blowing a MOSFET after few minutes. Early morning the next day to get it replaced and ready. Really enjoying watching this.

@Bananarammaa Год назад

The REV team is so incredible. I only got to interact with them occasionally at FIRST champs, but theyre such a kind group of people!

@Random_4400 Год назад

Man seeing such a heavy thing spin st 10k rpm is truly terrifying

@jonbee5481 Год назад

My Nebula subscription was happily paid for by the can shaking bit in your extended version of this video over there. Well done!

@kingofcastlechaos Год назад

That was hilarious.

@pistol0grip0pump Год назад

Awesome to see you again Scotty, been missing your content, hope your recovery is going well and you're feeling better bud, take care All the best from the UK

@gov.quanchello6420 Год назад

Nice to hear your voice again sir, great video as always. You talents and experiences are always a pleasure to watch. be safe and good health always!

@bami2 Год назад

I loved how switchback worked. When I first saw a picture of it I thought it would spin up, move the arm/rotate a bit and just go completely physics. Instead, it just worked fine. Sure it had some turning issues with the weapon extended since center of gravity, but other than that it worked beautifully and gave some pretty hard hits. Can't wait to see the improvements next season if you decide to re-enter.

@sethmoyer Год назад

To whomever has access to the closed captions, I think he's saying "I don't wanna lose the whole platoon" and not "I don't wanna lose the hopeful tune" at 0:08.

@ToTheGAMES Год назад

It is auto-generated.

@berttorpson2592 Год назад

That explanation of the wire windings crimp was god damned phenomenal. I re-watched that explanation a few times.

@ArmanVA 11 месяцев назад

9:13 is the most engineering thing ive ever seen

@Ranglebox Год назад

Thank you for showing proper combat robot safety protocols!

@Durkee1337 Год назад

this was so incredibly cool!!! thank you for showcasing such great engineering

@WetDoggo Год назад

Some improvement ideas: Remove the chain drive and use 4 smaller motors Definitely add heatpipes to all critical parts Maybe even split the spinner into 2 counter rotating sections which cancels the gyroscopic force offset to enable faster turns

@inthefade Год назад

Counter-rotating wouldn't work because you want the whole thing impacting at once in one direction to impart force into the other bot.

@WetDoggo Год назад

@@inthefade yes I thought so as well... Another downside would be that the bot flips itself in the opposing direction

@vincentbouchiat2183 Год назад

Glad to see you again in shape ! Keep the good work ! You rock .

@andrecook4268 Год назад

I know from experience that worm gears are hard to run in combat robots - makes switchback even more impressive.

@tim000x3 Год назад

Love you man. I do IT for work and as a hobbie but your videos have made me dive deeper into the electronics side of it than ever have before. You also began my journey down the rabbit hole of supply chains and where parts come from so that has eaten a terrifying amount of my time. Thank you and glad to see you making videos.

@FlavorTrends Год назад

Love to see what we been missed to carry on and pick it up, not the program only, but you, Scott, all are well. Keep it up

@rrittenhouse Год назад

Were so glad to see you! This video was EPIC! You never disappoint. Thank you

@shortsleevecardigan Год назад

“So we’ve lost drive on one half of the robot” Welcome to Battlebots where losing drive is pretty much obligatory. 😜

@justinanderson267 Год назад

I would keep that steel armor playing, but I would want to put something similar to a ships hull on it. Maybe aluminium. Maybe even hard plastic. Something disposable and lightweight, just to get in the way before the actual armor is hit. But I don't know anything lmao. If I did, I'd be building my own bot

@tristanheartt2272 Год назад

cool idea, but there are a few problems: 1. That works with projectiles and things that can be slowed down. Since the weapons are almost as big as the whole robot, they aren't going to slow down from a bit of soft material. The AR500 will do all the work when it comes to absorbing impact. 2. The judges use visual damage as a metric when the game goes the whole time. Chunks of aluminum and plastic are bad news in a close fight.

@Pencil0fDoom Год назад

Paused at 13:51 - immediate first impression- fewer blades would be better. Reduce strain on complex arm components plus more kinetic force would be distributed to each remaining blade, like a bed of nails, too many equals less damage per cutting surface. Someone with math chops could provide a functional equation for this idea.

@cameronhill2true Год назад

It always feels like a treat to see a new video of yours. Thank you for continued content!

@smileyley Год назад

I would binge a whole Netflix Series about you guys on your way to BattleBots no question!

@mrbmp09 Год назад

"The resistance was infinite so essentially a dead short" That is 2 completely opposite states of resistance, not remotely the same. High resistance is the exact opposite of a short.

@Amy_A. Год назад

I think what he meant was that the controller had to crank up the output to overcome the resistance, and that increased current output made the controller act similar to a dead short scenario. They clearly at least *somewhat* know what they're doing, so I'll give em the benefit of the doubt here.

@yuxuanhuang3523 Год назад

@@Amy_A. I have another explanation. It is a three-phase motor, and when one cable is not connected properly, the motor will not spin because two cables connect through one coil. What might have happened was that one connected coil was acting as a short because it was passing DC current. What should have happened in a spinning motor was AC passing through all three coil at 120 degree apart phases.

@AbsurdAsparagus Год назад

Obviously just a miss speak. Like it does not matter.

@gregyoung9687 Год назад

I agree this was just a misspeak, but I think he's also onto the wrong idea - I've never seen a motor controller where it blows up without connection to a load.

@markomarkovski9323 Год назад

It's so nice to have you back Sir! Hope you are well and hope you never stop uploading your awesome content!

@dingus153 Год назад

I'm glad you were finally able to make this video, it was great seeing the Strange Parts logo on TV!

@andrewbarney5503 Год назад

Glad you're feeling better. Concussions are no joke. Robots are more like a bonus! :)

@CamTarn Год назад

It's great to see you back :) Really enjoyed this video - can't wait to see more from this team.

@onjofilms Год назад

So glad to see you back in videos. Glad you're improving!

@noahd8673 Год назад

“Its important to design your robot for the oven that you have” Im dead 😂

@OneBiasedOpinion Год назад

That Neblua ad was genuinely one of the first times in over a year that I have listened to the ad all the way through and was actually interested in the product. I certainly hope more content creators here plug it in future, as it sounds like a really good alternative to the growing tyranny of the popular “free-to-use” platforms. If I may ask, what was it that RU-vid was having you cut? Did some sections contain too much “unacceptable” content, or was it mostly length/visibility related?

@jeffbrownstain Год назад

Nebula is a nearly five year old platform that thousands of youtubers have been shilling in all that time. They're still pushing it, and we still dont use it.

@Mike-rx5uu Год назад

I'm guessing its mainly just length, especially since he mentioned the algorithm. Lots of creators on RU-vid that do longform videos complain about longer videos not working well with the algorithm.

@shanemather6785 Год назад

This is genuinely the most exciting thing I've ever watched! What a group of great people with brains and skills to match! Great to see you triumphantly return Scotty! 👍

@DavidDobr Год назад

Excited to see you back, hope you've had a full recovery!

@xAuthornx Год назад

This is so interesting! I love watching stuff like this because I was on a FIRST robotics team and got second in regionals the year I competed. It was honestly a super fun time!

@namelessalias0007 Год назад

Kinda a longshot, but I'd love a collab between you and diy perks.

@antagonizerr Год назад

Hey here's something that no bot builder has thought of. Installing limited slip clutches on their weapons and arms. I built recycling plants that wash tank paddles would jam up under excess waste material. to fix this, I added spring loaded clutch plates to the motor so that it would spin under power, but if the counter force was too much, the clutch plates would slip saving a lot of chains and sprockets. Your weapon stops abruptly on contact. A limited slip clutch would prevent it from burning out from excess load.

@bldjln3158 Год назад

Believe it or not, clutches have been used since the very beginning of robot combat. Anything beneficial that you can readily think of has been done already. Especially something as simple as a clutch.

@antagonizerr Год назад

@@bldjln3158 I've watched every build vid from Blip to sawblaze and not one has incorporated a clutch. The mechanical engineer in me gets frustrated when I see spinners being installed as diirect/chain drive without so much as a single measure of protection. Electronically, these machines are sound as a pound, but mechanically they could use some expertise.

@Akira-si2ww Год назад

Awesome to see your content again Scotty! Hoping you're feeling better!

@arjunprabhu Год назад

So happy to see you back., and wishing you a very speedy recovery. You are one of my fav on youtube, and now on Nebula/Curiosity Stream. I always look forward for your videos. Wishing you the very best. Thanks for all the work that you do.

@Roboseal2 Год назад

YO ITS SWITCHBACK FROM BATTLEBOTS YO WHATS UP!

@raghavmarwah Год назад

You inspired me to study engineering. I love your videos, it is great to see you again.

@unusedaccount6200 Год назад

Love your videos Scotty, have been watching since the start. As one IT to another you has always been a huge inspiration at what you've done and when you moved to a place I only dreamed of visiting. Can't wait to see more content, at your pace. Great to have you back.

@pedrochr Год назад

Happy to see you better! Thanks for the video 🙏

@zerocool2233 Год назад

been waiting for this content for so long, glad to see you back and hope your health is good!

@garramiro Год назад

actually with the thickness of those plates you don't need to preheat AR500, you only need to preheat for greater thickness (more than 3/8")

@andrewwmitchell Год назад

Thanks for the great video. I'm happy that it seems like you've now made a complete recovery.

@simonkeenangomez Год назад

Hopeful and still praying for your health and the future of your channel scotty. Don’t ever give up on your amazing passion. Chin up.

@steckelton717 Год назад

That was such a great and enjoyable video! I'm glad you got to do this, and are also well enough now to produce content again :) It's amazing to have ya back, can't wait for your next projects, and I'm on my way to watch that free fight now :3

@rasheedputranto994 Год назад

I'M SO GLAD YOU'RE BACK!!!

@ianjensen3890 Год назад

So good and refreshing to just see the FIRST logo out and about in a video that is not utterly and completely directly tied to FIRST. I think this might be my first time wondering upon this channel, but to my subscriptions this channel shall go!

@teamtechworked8217 Год назад

Welcome back Scotty. Can't wait to see your full creativity continue to come back to life.

@Dangineering Год назад

I saw switch back live in Vegas! Looking forward to seeing V2!

@chad1355 Год назад

Im so happy your doing better and posting again. I love the content.

@kingcrossy89 Год назад

Awesome content, so glad to see amazing stuff coming out of your channel again!

@ThriftyToolShed Год назад

Awesome. I enjoyed watching the build. I know y'all had a blast with this!

@Mt.Trashmore Год назад

Very ironically I had a concussion a little whiles ago, I was very lucky to read up on treatment of concussions due to your video. I've recovered almost fully now, but it was pretty scary when it happened and I couldn't speak properly

@elguapo1690 Год назад

We're Battle Bots ever actually built in garages by small teams, and did they ever win?

@Matt-cn2nn Год назад

Back in the 90s and early 2000s, robots with small teams and meager budgets could feasibly win a championship, but that's not been a likelihood since Battlebots came back in 2015 - now it's all 5 figure budgets, sponsorship deals and typically large teams.

@revimfadli4666 Год назад

@@Matt-cn2nn I wonder if a sportsman/grassroots class could help

@wangouthangout Год назад

Glad to see your videos popping up in my feed again. Hope you're making a good recovery from the accident :)

@hedonistic_mushroom Год назад

Love to see you back making content, Scotty!

@windroid_user Год назад

Scotty never disappoints when that notification drops!

@shawnfoogle920 Год назад

Battlebots is my favorite tv show. + its the most real reality show ever i love robot fights big or small. i just wish it was more popular. its not a sport tho but its a real life video game.

@shawnfoogle920 Год назад

and just how complicated it is just shows how talented the builders - teams are. because in the show they only have a matter of hours to get ready for another fight

@jacobcardoza4897 Год назад

Glad to see you posting again! we missed you. Hope youre healing up!!

@ArghyadebBandyopadhyay Год назад

Glad to have you back mate! You're a gem.

@FunnyFunbros 8 месяцев назад

This is one of the BEST BATTLEBOT DESIGNS I'VE EVER SEEN 😢

@user-yb9bm5cg5q Год назад

Oh, crap, can't say enough how I missed your videos! It's SO GOOD to see you nice and well!

@rkaratimus1 Год назад

Glad you're posting again. Hope you are feeling better!

@donhos1698 Год назад

Only seen you got a head injury now. Sorry to hear hope you heal quickly. I've had a bad year due to problems with my kidney and it's just put a damper on a already existing financial situation, us as humans really take good health for granted especially when your type of work is physical. All I can say is I hope you heal quick and soon. Keep up the good job on these amazing engineering videos.

@classicgamernl Год назад

Ohhhh man so good to see you're well. Fantastic video. Had to think about you a lot since the wife of a friend of mine has a similar brain concussion as well. So good to see it is getting so well.

@jgillilan Год назад

Happy to see lots of new videos from you!

@HeyV63 Год назад

That looks like an awesome battle monster. Great to hear your head is all better man! Welcome back!

@Grand.Mast3r Год назад

my favorite line "its important to design robot for the oven you have" dying here

@IanKen Год назад

Great to see your videos again. I hope you are doing well with the recovery

@marty6980 Год назад

Great to see you back making content again, missed your video's !

@ShannonHoover Год назад

Amazing how much effort goes into just making sure it doesn't destroy itself and the whole team! Nice work, and glad to see a new video! :)

@inthefade Год назад

Watching the testing of some other bots is so damn scary.

@mathewrutledge2922 Год назад

My favorite quote... "It's important to design your robot for the oven that you have"

@NicMG Год назад

15:59 "Don't die, good luck" 🤣

@TooMuchCaff Год назад

we use a lot of rev robotics parts in our robots that we build for robotics. This was a REALLY COOL video knowing that you were invited to their Warehouse. Keep up the good work!

@alexchala7035 Год назад

"Your resistance went to like infinite and it was essentially a dead short" This is the most contradictory statement i have eveeeeerrrrrrr hear, at 8:57.