I appreciate the heck out of you guys. Where so many BattleBots veterans treat their builds like trade secrets you're taking the opportunity to educate and inspire people like me who want to be a part of the destructively wonderful world of combat robotics. I live in Colorado and am building my very first bot, a beetle weight unibody drum spinner. The design is inspired by Riobotz' mini-tauros, but it was Copperhead, not Minotaur, that really sparked my love for compact, devastating drum spinners. Your bot is a beautiful monster of a machine, and I have you as a favorite for the Giant Nut this year. I'm hoping to have my bot ready to compete by the end of the year, and really look forward to meeting you in person at a local event!
Evolution instead of revulotion is the way in my opinion. Looks like a Mad-Max-Bot, really nice finish, good luck with your fights. I hope I'll find a way to watch BB here in germany some how.
So, in the video I hear allot of "beefed up", "Longer bolts" and "Stronger". And then in addition to that, there are the potential setups/modifications. That makes me wonder where that additional weight is coming from (assuming CopperHead was the full 250 pounds last year.) What bits have become lighter and where was the weight saved? I can not imagine rounding off the frame rails and all would save much weight so I am curious about the changes in weight distribution. Btw. as always great overview and I am greatly looking forward to seeing Copperhead and the team fight on tv, good luck and stay healthy!
We were about 10 pounds under last year, which is a good amount to play with. Most bots come in around that weight so they have some room to add stuff.
The rusty looks are so unique and fits very well with the brutal aesthetics of the bot! Wish you luck for future events, i just discovered the world of battlebots but i can't wait to see the future fights! And Copperhead looks very well tought out and promising!
You have a talent for presentation. Well spoken, very informative & professional as your machine. Wish I could find other presentations that were as well presented.
Really excited to see copperhead this year! Was rooting last year, but seems like it was mostly the small things that got ya. Really sounds like this year will be much improved! Go out there and represent Colorado to the world!
I would make a very shallow pocket on the "fangs" and put a very low friction material there with mechanical fixings. Should help with friction. Also, whilst it might not be an issue of structure, i'd re-route the weld on the back. Doubt it would crack, but there's a lot of stress fracture start points especially at the meeting point of the plates.
Hey, did you think about possibly incorporating motor into the shaft? You'd have magnets placed on the shaft, and stationary rotor hidden within it. This way you could save some weight and possibly make it more robust - no belts to slip or snap. Other than that, design looks pretty good and there is little to better. Also as for thermal epoxy - you might actually try doing some of such yourself. JB Weld is known to be the strongest epoxy on the market, and incorporating some heat conducting particles (aluminium, zinc oxide etc) would probably not lower it's strength that much.
This is a hub motor, and it's not been successfully used in this weight class, the motor would see too high shock loads and would most likely break the magnets.
I really like the technological evolution of such a highly competetive environment. I wonder if advances or realizations of the battlebots scene will one day be incorporated into combat drones or robots, since they had so much time to test ouf batterypacks and other failure points under highstress highimpact conditions.
Good Luck Copperhead! Love the new look! Bummed we missed out on watching you all live this year, but super excited to watch when the season airs. 🔥🔥🐍🐍🔥🔥
I know its far to late now, but, if you ditch the rare earth magnets, and instead use some of those magnetic door lock electro magnets, you can with very little space and weight gain use, 2 of the 300lb force electro magnets, they would without a doubt be heavier then the magnets your using, but you would gain magnets that you can turn on and off as you want to. so if you get high sided or just want to lift the bot up at the end of the match, you can either turn off the magnets clearing the bolt chain or whatever has you high sided, and or when the bot is powered down, you wont have to contend with the extra down force.
The new version of Beta has this kind of electromagnet setup. The reason its not more common is that most robots are totally fine with permenant magnets in key places, and running the electromagnets requires a lot of battery power. Beta will only activate the magnets when it fires the weapon to keep it grounded. Copperhead needs them on constantly to keep it flat to the floor, reduce gyro lifting and help it get under opponents, as a result they may as well be permenant. I will also mention that adding magnets isn't a new thing, its been around ever since the original comedy central BB!
I don't understand the tech talk...but the bot executes an often used concept SO beautiful....I don't wonder if the motor will work I wonder if it is single ; )
Why aren't the magnets more on the front of the bot? Maybe on the back they help more on the traction and on the front (effective middle) they help more on how planted the bit behaves and prevents "wheelies"
The front weapon assembly is over 60 pounds, not including the shaft. The center of mass is behind the drum a bit, so the magnets are placed just forward of the wheels to add more traction to the wheels without making it too front-heavy, which would cause it to just dig into the floor.
Robert, This is a general question about the rotational speed of any robot with a spinner. I'm asking you because I've watched several of your videos and have enjoyed your depth of knowledge and ability to explain your design decisions. The 2020 rules state that the highest speed of any external part of a robot is 370 ft/min. In doing a few simplified and estimated calculations of your spinner, based only on visual estimates: 8" diameter spinner x Pi = ~24" or 2 ft circumference. 370 ft/min / 2 ft/revolution = 185 revolutions / min MAX. Your demonstration of the spinner when you demonstrated the sound level, I believe in a different video, looked significantly higher than 185 rpm. In the performances in the arena it also seemed to be going much higher than 185 rpm. I found this higher speed to be visually the case for almost all spinners. Am I missing something? I'm considering a design with kinetic energy weapons and of course speed is everything. I'd appreciate your thoughts and insights. Keith
I'm not checking all your math, but our drum isn't very large in diameter. And the tip speed is 250MPH, meaning the outer tip can't move more than 250MPH. 185 RPM is VERY slow. Check your math, something is wonky. You're on the right track though.
@@RobertCowanDIY I agree, 250 MPH is 370 ft/sec as allowed by the rules. Unfortunately, my calcs were done at 370 ft/min not ft/SEC. So i was wrong by a factor of 60. Oops. That would put your tip speed at about 11,100 RPM. A much better result. Thanks for the response.
I especially like how the back of the bot looks.... Guess I'm a bot-o-phile or something lol. I hope everyone is satisfied with their bots on BB! Good luck.
Thank you Robert. I'm very excited to watch you all this year. You didn't talk about the drive motors but that list snippet looked like smoother control. Are both radios up to snuff?
We try to focus only on things that didn't work. Sometimes 'fixing' something that's not broken leads to new issues. We've never had a receiver issue, so it's staying the same.
Are those antennas working out for you? Taping them down to something metallic like that is usually a big no no.... some mm of space is usually recomended, but you maybe are so close that this wont be an issue?
the bottom leg on the weld on the left wedge is coming undone .I am sure you noticed .thought I would say something in case you did not . not criticism just an observation .It is not tied in
Are those wires on the back the antennas? Does it run on 2.4 ghz? That antennas seems really exposed and surely will get torn apart at the first direct hit. What about a 900 mhz receiver placed inside the bot? Will it work and be much more durable or the metal would shield it even at that short distance?
Teams are required to run 2.4GHz TX/RX systems for saftey reasons. Running the wires out the back like that does make them a little vulnerable but it is extremely unlikely they will get hit round there and even if they do the robot should still get some signals through. It may also be that the robot runs fine without sticking the antenna out the back and that they are happy to take the extra signal reliablity over the very small risk of them getting destroyed.
Hey Robert, Please make sure to PRACTICE DRIVING ALOT. I see that it really makes a difference to put in the hours and drive around, and use a small RC car as something to chase around. I bet you will WIN just based on your driving skill.
It would be terrifying, as long as the battlefield was graded perfectly flat with no more than 1/8" deviation. A small pebble could cripple the whole army.
A heavy box on wheels will rip your ankles off and crush your feet if travelling fast enough- you only need to see r/c cars weighing ~10lbs knock a grown man off his feet to understand that they have a lot of kinetic energy that can still hurt you really badly.
4 ปีที่แล้ว
That heavy spinning thing in the middle is more destructive than you might think..
Your videos are so high quality. I wish other battlebots competitors made feature videos for their bots like this too.
totally agree
I appreciate the heck out of you guys. Where so many BattleBots veterans treat their builds like trade secrets you're taking the opportunity to educate and inspire people like me who want to be a part of the destructively wonderful world of combat robotics.
I live in Colorado and am building my very first bot, a beetle weight unibody drum spinner. The design is inspired by Riobotz' mini-tauros, but it was Copperhead, not Minotaur, that really sparked my love for compact, devastating drum spinners. Your bot is a beautiful monster of a machine, and I have you as a favorite for the Giant Nut this year.
I'm hoping to have my bot ready to compete by the end of the year, and really look forward to meeting you in person at a local event!
Yeah, hopefully we can get a local event going sometime this year! Look forward to seeing you there. I might have something new to bring.
GO COLORADO!!
Evolution instead of revulotion is the way in my opinion. Looks like a Mad-Max-Bot, really nice finish, good luck with your fights. I hope I'll find a way to watch BB here in germany some how.
sadly you wont find a legal way to watch it for a few years as german networks dont care
That is a sweet paint job! I'm looking forward to watching you compete!
So, in the video I hear allot of "beefed up", "Longer bolts" and "Stronger". And then in addition to that, there are the potential setups/modifications. That makes me wonder where that additional weight is coming from (assuming CopperHead was the full 250 pounds last year.) What bits have become lighter and where was the weight saved? I can not imagine rounding off the frame rails and all would save much weight so I am curious about the changes in weight distribution.
Btw. as always great overview and I am greatly looking forward to seeing Copperhead and the team fight on tv, good luck and stay healthy!
We were about 10 pounds under last year, which is a good amount to play with. Most bots come in around that weight so they have some room to add stuff.
The rusty looks are so unique and fits very well with the brutal aesthetics of the bot! Wish you luck for future events, i just discovered the world of battlebots but i can't wait to see the future fights! And Copperhead looks very well tought out and promising!
You have a talent for presentation. Well spoken, very informative & professional as your machine. Wish I could find other presentations that were as well presented.
Really excited to see copperhead this year! Was rooting last year, but seems like it was mostly the small things that got ya. Really sounds like this year will be much improved! Go out there and represent Colorado to the world!
I would make a very shallow pocket on the "fangs" and put a very low friction material there with mechanical fixings. Should help with friction. Also, whilst it might not be an issue of structure, i'd re-route the weld on the back. Doubt it would crack, but there's a lot of stress fracture start points especially at the meeting point of the plates.
Hey, did you think about possibly incorporating motor into the shaft?
You'd have magnets placed on the shaft, and stationary rotor hidden within it.
This way you could save some weight and possibly make it more robust - no belts to slip or snap.
Other than that, design looks pretty good and there is little to better.
Also as for thermal epoxy - you might actually try doing some of such yourself.
JB Weld is known to be the strongest epoxy on the market, and incorporating some heat conducting particles (aluminium, zinc oxide etc) would probably not lower it's strength that much.
This is a hub motor, and it's not been successfully used in this weight class, the motor would see too high shock loads and would most likely break the magnets.
Amazingly terrifying spinup. Fantastic.
Good luck this year!
I really like the technological evolution of such a highly competetive environment. I wonder if advances or realizations of the battlebots scene will one day be incorporated into combat drones or robots, since they had so much time to test ouf batterypacks and other failure points under highstress highimpact conditions.
Absolutely, some builders work or represent companies that are improving their products around what's found in the battlebox.
Since minotaur isn't competing in 2020, copperhead will be our temporary minotaur for the season
makes me so sad because minotaur is my favorite, but this is a worthy replacement
Good Luck Copperhead! Love the new look! Bummed we missed out on watching you all live this year, but super excited to watch when the season airs. 🔥🔥🐍🐍🔥🔥
That paint job is super clean !
i liked your bot when watching it. i love it now. wonderful videos.
My favorite bot just got even better!
I want to see a Copperhead vs Copperhead match
Looks promising. Hope it can put on a good show win or lose. Good luck to you and the team.
Those magnets are terrifying.
I know its far to late now, but, if you ditch the rare earth magnets, and instead use some of those magnetic door lock electro magnets, you can with very little space and weight gain use, 2 of the 300lb force electro magnets, they would without a doubt be heavier then the magnets your using, but you would gain magnets that you can turn on and off as you want to. so if you get high sided or just want to lift the bot up at the end of the match, you can either turn off the magnets clearing the bolt chain or whatever has you high sided, and or when the bot is powered down, you wont have to contend with the extra down force.
The new version of Beta has this kind of electromagnet setup. The reason its not more common is that most robots are totally fine with permenant magnets in key places, and running the electromagnets requires a lot of battery power. Beta will only activate the magnets when it fires the weapon to keep it grounded. Copperhead needs them on constantly to keep it flat to the floor, reduce gyro lifting and help it get under opponents, as a result they may as well be permenant. I will also mention that adding magnets isn't a new thing, its been around ever since the original comedy central BB!
I don't understand the tech talk...but the bot executes an often used concept SO beautiful....I don't wonder if the motor will work I wonder if it is single ; )
Looking good as always. If you fixed the drum to floor clearance then this year might be yours.
Thanks for sharing, this is excellent content!
Looks amazing. Cant wait to see it battle.
Dammm! A lot of beefing up! Great job and good luck!
Why aren't the magnets more on the front of the bot? Maybe on the back they help more on the traction and on the front (effective middle) they help more on how planted the bit behaves and prevents "wheelies"
The front weapon assembly is over 60 pounds, not including the shaft. The center of mass is behind the drum a bit, so the magnets are placed just forward of the wheels to add more traction to the wheels without making it too front-heavy, which would cause it to just dig into the floor.
Robert,
This is a general question about the rotational speed of any robot with a spinner. I'm asking you because I've watched several of your videos and have enjoyed your depth of knowledge and ability to explain your design decisions.
The 2020 rules state that the highest speed of any external part of a robot is 370 ft/min.
In doing a few simplified and estimated calculations of your spinner, based only on visual estimates:
8" diameter spinner x Pi = ~24" or 2 ft circumference.
370 ft/min / 2 ft/revolution = 185 revolutions / min MAX.
Your demonstration of the spinner when you demonstrated the sound level, I believe in a different video, looked significantly higher than 185 rpm. In the performances in the arena it also seemed to be going much higher than 185 rpm.
I found this higher speed to be visually the case for almost all spinners.
Am I missing something? I'm considering a design with kinetic energy weapons and of course speed is everything.
I'd appreciate your thoughts and insights.
Keith
I'm not checking all your math, but our drum isn't very large in diameter. And the tip speed is 250MPH, meaning the outer tip can't move more than 250MPH. 185 RPM is VERY slow. Check your math, something is wonky. You're on the right track though.
@@RobertCowanDIY
I agree, 250 MPH is 370 ft/sec as allowed by the rules. Unfortunately, my calcs were done at 370 ft/min not ft/SEC. So i was wrong by a factor of 60. Oops. That would put your tip speed at about 11,100 RPM. A much better result.
Thanks for the response.
You are the Best Robert.
Maybe you could make that bridge piece on the front forks a screw on piece (screw on from the bottom) so that it could be removed if necessary.
Guys this year your machine looks crazy powerful.... Make sure you win the Giant Nut... 😀
I especially like how the back of the bot looks.... Guess I'm a bot-o-phile or something lol. I hope everyone is satisfied with their bots on BB! Good luck.
Thank you Robert. I'm very excited to watch you all this year. You didn't talk about the drive motors but that list snippet looked like smoother control. Are both radios up to snuff?
Looks awesome, Rob.
Fantastic work
Great job! And good luck!
I would suggest multiple redundant receivers that are a little bit more exposed to ensure good RC Link
We try to focus only on things that didn't work. Sometimes 'fixing' something that's not broken leads to new issues. We've never had a receiver issue, so it's staying the same.
Would it be possible to scale down copperheads eggbeater drum to a 3lb combat robot?
will 2 of those magnets hold the entire weight of copperhead? say if launched up onto the wall or if it rides up a bot armored with steel
Nah, it's only about 100-150 pounds at most.
Question, if you face an undercutter spinner, can it knock off the magnets? and if so what happens if you run out?
Of course, or they could get knocked off during huge hits. We have spares!
@@RobertCowanDIY Thank you!
So, how did you do it? Put CopperHead one on the ol' Xerox and pressed copy? :)
Wow. hope you guys win a fight today
Are those antennas working out for you? Taping them down to something metallic like that is usually a big no no.... some mm of space is usually recomended, but you maybe are so close that this wont be an issue?
good luck in the box!
Its battlebots time! Question, can HFI be used on smaller combat robots with something like a Turnigy MultiStar ESC
Lucky for you I have a Q&A this Sunday, submit your question here: forms.gle/BxjHKovnsZLVQBud7
When you started talking about noise injection I thought another wind up was incoming ;-)
the bottom leg on the weld on the left wedge is coming undone .I am sure you noticed .thought I would say something in case you did not . not criticism just an observation .It is not tied in
Is that a VESC driver?
Nice Job!!! I want to see the fights. I have one question what motor do you use to move the drum? Good luck at Battlebots 2020
Are those wires on the back the antennas? Does it run on 2.4 ghz? That antennas seems really exposed and surely will get torn apart at the first direct hit. What about a 900 mhz receiver placed inside the bot? Will it work and be much more durable or the metal would shield it even at that short distance?
I think 2.4 is a safety requirement
Teams are required to run 2.4GHz TX/RX systems for saftey reasons. Running the wires out the back like that does make them a little vulnerable but it is extremely unlikely they will get hit round there and even if they do the robot should still get some signals through. It may also be that the robot runs fine without sticking the antenna out the back and that they are happy to take the extra signal reliablity over the very small risk of them getting destroyed.
does rulers allow to use more effective destruction devices on bots like portable plasma torch for example ?
Check the official rules on the Battlebots site. In short, no.
Yeah i dont think you've ever seen this bot compete
Good luck!
É um robô muito bem projetado! sem dúvidas!
Hey Robert,
Please make sure to PRACTICE DRIVING ALOT. I see that it really makes a difference to put in the hours and drive around, and use a small RC car as something to chase around. I bet you will WIN just based on your driving skill.
I think his team has a dedicated driver
might be wrong tho
Stupid question but the front 'cross brace', could that not be attached mechanically so it could be removed for servicing?
You can't really within the structure without weakening it.
What are you doing with this hoverboard wheel? 🤔
Woah, I forgot they were that big.
4:48 😍
great first fight. Annihilated
That thing is diabolical
This is crazy
Copperhead was a lot bigger than I thought
Everyone always says that, but we are in fact the smallest bot at Battlebots this season.
Unless you count gigabyte without the dome you managed to knock off in your fight against them
Copper Head Is On The Gate💓💓💓💓
mmmm... Looks tuff. Stronk!
Hope we won't get to see another Scorpios breaking the chain drives :)
I sent you an email Robert, let me know if you get it ok
Also hi robert cowan
I love your bot You have a contender fcor the giant nut .I will be screaming for you the whole time
Wait we are still getting battlebots this year?????? Also attack from ahead like beta or chomp? Come on man, that isn't going to hurt. ;)
hahahaha this is facts
If you have two can you send me your version
Sure! Just send me $20K, and we'll get it packed up for you.
@@RobertCowanDIY sorry to say if you can send it free
@@RobertCowanDIY I might
@@RobertCowanDIY the old version
@@RobertCowanDIY how long for shiping
Can you imagine an army of these going into a ground battle in war? You could really freak out the enemy and inflict some serious damage.
It would be terrifying, as long as the battlefield was graded perfectly flat with no more than 1/8" deviation. A small pebble could cripple the whole army.
CopperHead was the past BlackMamba is the future
IS a 250 lbs push bot, no spinners, hammers ect. Is that still dangerous if not handled properly? I think not because its just a heavy box on wheels
A heavy box on wheels will rip your ankles off and crush your feet if travelling fast enough- you only need to see r/c cars weighing ~10lbs knock a grown man off his feet to understand that they have a lot of kinetic energy that can still hurt you really badly.
That heavy spinning thing in the middle is more destructive than you might think..
leave those magnets off - enough is enough
haha. no.
:) A your manager I insist
@@RobertCowanDIY
Your robot is looking mighty fine - should be in the top bunch@@RobertCowanDIY
See! I was right! Awesome win! Big fan@@RobertCowanDIY
Copper head no longer have copper colored head