So excited to see Battlebots live! I got my tickets for November 1st! Literally fell perfectly in line with a trip my wife and I planned, so I couldn't pass up the opportunity. Can't wait to see how the upgrades work out. TPU really is a miracle filament with its versatility in combat robotics.
We used TPU battery boxes in Torment Nexus the 60lbs at robogames this year, the way we did it was add foam in between the batteries and tpu as kind of a double layer of shock absorption. It worked pretty well, great to see tombstone using similar tech!
Yeah. A combination of dissimilar materials should work in better absorbing impacts than a homogeneous block But yeah, it's possible to model them first using an analysis tool like Ansys or something like that. That's the best way.
Ray is such a chill and sweet guy, who knows when to fight hard. Really thankful to see the inside og the bot. That mix between industrial and RC tech is cool to see.
Thanks for these videos! Tombstone has long been a favourite given its combination of kinetics and agility. I've often pondered how I would design a bot to counter it, and that would be a lot easier if someone other than Ray was driving it.
@@ray9368 I have such a passion for battle bots I remember being 5 years old and wanting to watch but my parents thought it was violent and destructive 😅
I think the future of robot combat is gonna ride on builders documenting themselves on youtube and independent promoters making space for said robot combat. we cant rely on network or cable tv. the future of the sport is as high tech and modern as the bots themselves.
You could put a couple of ShockWatch indicator labels inside Tombstone to see how many G's its actually experiencing. That could be useful info for future reference.
Once upon a time, as nerds are prone to doing, I got into a discussion about what would be the best gear to have during a zombie apocalypse. I stated that I would like to have a battlebot, specifically Tombstone. Of course, the ones who didn’t think of something like that were the ones to point out issues with battery recharging and replacing. Nevertheless, having Tombstone undercutting a zombie horde while you sit safely out of harm’s way, would be a glorious experience!
Tombstone has no chance of surviving, he can only go on smooth ground, he does not have a front wheel, and if he goes on a road he will most likely get stuck.
Tombstone has no chance of surviving, he can only go on smooth ground, he does not have a front wheel, and if he goes on a road he will most likely get stuck.
I hope Tombstone can make an epic comeback. This Bot is the absolute GOAT and wow did I enjoy it just mauling any and all who dared get in it's way! I hope these tweaks are enough to get you and that amazing Bot back on track. You are a LEGEND, Ray. Good luck to you.👍👍👍👍
Tombstone is the reason I started watching battle bots. So glad Tombstone is still fighting. I can't wait to see Ray and Tombstone battle it out. I hope you win another championship
I just started re watching Battlebots season 1-8. Season 5 and 6 definitely seemed rough on those electronics. Many burndowns. Fun to see, not fun to see your favorite go up in flames 😅.
@martins4446 UA-cam with the Max subscription. Had to watch Season 1 and 2 just the fights in a playlist. 19$ a month unfortunately for the Max subscription
I've got a lot of faves in BB but the very first time I saw Tombstone in action I fell in love - this thing deals some serious devastation! excited to see what comes of the less flammable version!
-- I like it. Been discussing such changes with you for years. The dual actuators for the weapon, when you first start it, momentarily, it's always going to spike to one of them but it is a great step in the right direction. It's the dampening systems that I've wanted to see the most, and that gap between the back of the machine and the battery enclosures. Pending all this works, if there was just some way you could spin that weapon up faster. That's going to be a thing.
Tombstone is by far my favorite battle bot. I think with the modifications you are making. You could win another championship. Best wishes from Virginia.
Considering how hot and wild the fires raged so far it'd still be tempted to put some sort of light foamy fireproof barrier between the drive and weapon batteries, if just to get a couple extra seconds out of it. Beautiful solution you've got there.
@Ray Billings, Just one small thing Ray and it's a problem that Scorpios has been dealing with and that is over heating. If anything you could mount a small CPU Fan and drill some holls in those new cases to let the heat disapate. Just tryin to help ;) Good Luck!
They are trying to deal with a specific problem, with the brushes on a magmotor overheating. Really in this case (and I love magmotor btw) the brushes just aren’t really designed for the amount of abuse we dish out. I’m curious to see how well his modifications work out!
It's interesting seeing one of these robots up on a work bench next to someone close up. It actually looks big sitting next to someone like that. They do not look very large on the tv in the arena.
Alright I'm designing theme parks in Planet Coaster themed to Battlebots, Tombstone will have a Mack Rides LSM Coaster and it will be named Tombstones Grim Revenge. It will be in Battlebot Kingdom: Haunted Hills
Nice mounting upgrades. Does anyone run accelerometers and have data on the G forces experienced with the bigger weapon-on-weapon hits? Would be interesting to see.
You guys are amazing I was there watching you guys in CA when the you guys went up against rotator and sadly you guys lost power 2 seconds before for it went to the judges and I even met one of your teammates who sat next to me, my sister, and mom all the way back in 2019
Ray I can't wait to see you return to the Championship. With the rule changes you won't get counted out for having one wheel ever again. I always felt you got robbed when that happened. I expect you to create some carnage my fellow old guy. 😁
I'm still concerned about the temperatures of the batteries and the batteries over heating. A honeycomb design of the battery holder walls still allows for strength and some air flow to keep the batteries cooler.
I believe that (And I'm not being "That guy" who nitpicks, 'cause I'm a big fan and longtime watcher of BB) the teeth on the blades, when broken will cause an imbalance of stability, thereby causing a few outcomes: 1. The wires could dislodge from their batteries (like the Free Shipping fight from Season 6). 2. The batteries could overheat and catch fire (like the RotatoR and Capt. Shrederator fights). 3. The battery itself could dislodge from its position, leading to strain on the wires, causing them to fray (similar to the first problem). To fix this: 1. Double-checking how secure the wires are connected to the batteries (before and after each fight). 2. Possibly adding a different kind of wire to reduce the amount of heat (because it might not just be the batteries that start the fire). 3. Inserting an metal clasp or "well" with walls deep enough for the batteries to be held in place (yet the walls would have enough of the battery go above it for easy removal).
Against the weight of the robot itself, the batteries just don’t affect balance all that much. In my case I wanted the drive pack kind of separate from the weapon packs - you know, in case something bad happens 🤣
You need to add two horizontal vertical plates to enforced the battery box From being crushed Is in my opinion I loved that bot when it frst came out Keep up the good work Hope you win another big nut
With the impact shocks getting ever greater, it would be interesting to see the shock mounting for the wiring. Ray; do you have any idea how many g’s of shock force the wires and electronics need to endure in a big hit? And how much just the wires weigh? With that much current that’s a lot of copper!
The weight of the wires does add up, and a lot of times people forget that when they CAD out their designs. It’s probably a couple of pounds at least. I might try weighing it all when I get closer to having it running. I usually use some form of clamping to hold the wires in place. I’ll try to add more specifics when I finish assembly so you can see.
Hi Ray! with the rule changes, you wont get counted out for only having one wheel if one gets knocked off, or if the drive motor locks up! i know you said you can drive on one tire, and ive seen it with mortician in the proving grounds with katkong. so as long as that deadly, deadly weapon is still spinning, you are NOT out just yet! so when faceoffs, and world championship 8 rolls around, get in there, and show the world what tombstone is capable of!
You mentioned the batteries getting warm... Any thoughts on designing some 'vent holes" in the sides of the tpu battery slots? Otherwise, the batteries are basically just surrounded with one big insulating sock. Maybe holes/mesh/"grille" on the side facing internal to the robot.
Warm in this case is not really hot, so my concern is more about the strength of holding than temperature. This exact setup has worked fine in the middleweight so we’re going to give it a try in the heavy
What about using 18650 with individual enclosures like on a cordless drill battery. And the CID could isolate the battery in case of problems, protecting the rest of the pack.
I worked for a mobile phone case manufacturer and we used TPU plus a secondary material, D3O. We had TPU in a corrugated type of form with the D3O material. D3O works a bit like wet sand, if you hit it hard it does not move, it absorbs the energy, if you hit it soft, it does move. I seriously think you should get some sponsorship from a mobile phone case manufacturer because it would work out well for them. How come you have not got TPU on the bottom? I have seen some craziness in the battle box, with all angles vulnerable. Also, where does the heat go in this arrangement, or is that not a problem in 3 minutes? Also, does it need a 'Titanic' approach where each group of cells is firewalled off? I wish I was not an armchair fan of the sport as I would like to do things like the battery housing myself! Anyway, Tombstone for the win!
Great, now you really need to do something to protect those wheels. Tombstone lost several fights already because had one of the wheels damaged and couldn't move properly anymore. Considering you only have two, one single good hit in one of the wheels is already almost game over.
Would it be a terrible idea to float items rather than fix them down? Pad around them with a material that won't stay squashed and let the items move around a lot in that padded space ?
Some lightweight items, like radio receivers, can do this just fine. Pad them well, tie them to an internal wire, and they survive just fine. The heavier things though like batteries are much more problematic.
Is it possible to protect Tombstone's chain. In its last few seasons, you've had a number of broken chains. Also is it possible to make a shock system to absorb some of the impact from transferring back?
Why not use multiple smaller motors for the weapon like Bite Force did instead of one big motor? Seems like that would help solve weapon reliability issues
Easier said than done. The tires need to be as wide apart as the weapon spin circle, or the robot is just stupidly hard to control. So they can't get any narrower than they sit now, which would mean the frame would need to be significantly wider. And that is just weight that I would rather allocate to the weapon system :) It's not a bad idea, but then the robot wouldn't really be Tombstone anymore.
Hi ray. I have a question one of the other commenters asked from the video where you modified the wapon bar during the 2018 season: do you turn off the weapon before a big impact or do you just take a leap of fath and hope the bar doesnt snap?
Typically no, I don't turn it off before a hit. The weapon takes a while to spin down so it really wouldn't help. The only time I tend to turn it off is if I'm getting pushed into a corner, and I just don't want to overheat everything.
He has fought against very strong robots that break the wheels, the tombstone wheels are resistant enough, not to mention that he faced a minotaur, and being faster he could not reach the tombstone wheels, also (it is just a theory) if he He makes an armor for the wheels, probably they are only glued or welded, and also, maybe he falls on his side due to a crash, and stays like that, unable to move, and maybe, an armor like that makes him a little slower (I don't know). The truth is, but he knows what he's doing, let's just hope he wins) 😎💖
It's always about weight management really. Anything sturdy enough to really protect the wheels would weigh a lot, and I'd have to take that weight from something else. And I just don't want to do that :) There may be ways to do more of that down the road, but with the current layout it would be pretty difficult to make happen.
Are you running bolts that are over a foot long through the TPU battery boxes? Why not use shorter wood screws or lag bolts that thread direct into the TPU to save weight? Edit: Also, if you are doing that so you can use nuts, I personally like to design hexagonal holes in my prints where I glue locknuts in place. That makes it to where you don’t need a backing wrench when tightening bolts. I don’t know how that’ll work for a heavy, though…
The bolts are around 7 inches long and really don’t add significant weight. Most of what you describe would fine up to a point but the shock loads seen here are just extreme. Through bolting will be stronger.
Two batteries in series, you add the voltage. Two 22.2v batteries in series equals 44.4v. Two batteries in parallel you add capacity and amperage. So the same 22.2v batteries with 6500 mah capacity (and 100c discharge rate, so capable of 650 amps briefly), if you have them in parallel they are still 22.2v but 13000 mah capacity and 1300 amp capability. 8 packs set up in series/parallel is 44.4v, and 52000 mah capcity and 5200 amp capability. Now those numbers are kind of large, but there is no way that these batteries will be able to put out that amperage for any length of time. But that is how it is wired up. 4 pairs in series, then wired each pair in parallel to get the voltage I need and the amperage. I could probably explain it more in depth, and heck that might make for a decent video someday. But that's the basics
@ray9368 Thanks for the response. I'm currently designing a 30 lb battle bot for my college right now. I know a decent amount, but there are still some specifics that i need to become more exposed too. I have always had a hard time deciding what electronics, motors, batteries, etc. The club I run at the college already had motors that i use. They are 24V amp flow E30-150 (weapon) and andy mark redline-775(drive). And they run on a 6S lipo, off the top of my head i think it is 6000mah, 120C. But im still trying to learn how that correlates to choosing correct ESCs or motors. I'm looking to upgrade to brushless drive and weapon motors. But most ones that i find run at an 8S setup and i am kind of unfamiliar with both the voltage and the brushless motors. For the weapon I was look at castles 2028, 800kv sensored motor. But with my research it has been hard to find information specifically for featherweight battlebots.
I have also been looking for brushless drive motors but haven't had much luck with my research. I currently have some KDE4012XF-400 that were previously used in a quadcopter. But am having a hard time mixing them to work for a drive system.
Speaking as a non expert, why not use layers of foam, rubber etc? That way the impact is slowly absorbed. Im just worried the 3d print will fracture and youll have the same issue?
Essentially, layers of foam is how we’ve always done it. For a long time that did work well, but the impact loads now are just a lot higher. So a more slid approach was needed
i woold make triangle frame inside box, hangin motor in it, sides of box triangle rips too, n hangin elektronix inside to motor, away from walls nise fites dude 🤩🤣🤩
Tombstone was the reason i watched battle bots. Every time Ray brought it out you could be certain there would be carnage and big hits. You go Ray!
SAME!!!!
@@panhead537same!
When I first started watching battlebots, Tombstone won that season. Ever since then tombstone has been my favorite.
Nightmare before tombstone! Greetings from the Netherlands ❤
@@Deimos000 How is the weather in Netherlands right now?
Tombstone is the icon of Battlebots!
Truly a leggendary bot
The first thing I ever saw of combat robotics was an introduction video of I believe it was the original Tombstone mulching a cinder block.
Always loved seeing Tombstone rip bots in half, hope you're able to continue that trend. :)
You never really know just how big these bots are until someone is standing next to them.
So excited to see Battlebots live! I got my tickets for November 1st! Literally fell perfectly in line with a trip my wife and I planned, so I couldn't pass up the opportunity. Can't wait to see how the upgrades work out. TPU really is a miracle filament with its versatility in combat robotics.
We used TPU battery boxes in Torment Nexus the 60lbs at robogames this year, the way we did it was add foam in between the batteries and tpu as kind of a double layer of shock absorption. It worked pretty well, great to see tombstone using similar tech!
Yeah. A combination of dissimilar materials should work in better absorbing impacts than a homogeneous block
But yeah, it's possible to model them first using an analysis tool like Ansys or something like that. That's the best way.
Ray is such a chill and sweet guy, who knows when to fight hard. Really thankful to see the inside og the bot. That mix between industrial and RC tech is cool to see.
Thanks for these videos! Tombstone has long been a favourite given its combination of kinetics and agility. I've often pondered how I would design a bot to counter it, and that would be a lot easier if someone other than Ray was driving it.
That was the most chill merch ad I’ve ever seen
I’m a chill guy 🤷🏻♂️
@@ray9368 I have such a passion for battle bots I remember being 5 years old and wanting to watch but my parents thought it was violent and destructive 😅
@@ray9368 exept for when in the arena lol
I think the future of robot combat is gonna ride on builders documenting themselves on youtube and independent promoters making space for said robot combat. we cant rely on network or cable tv. the future of the sport is as high tech and modern as the bots themselves.
Nice set-up, hope it helps Tombstone with reliability, will be rooting for you in November! Ever since the reboot been one of my favourite bots.
C'mon TOMBSTONE! Can't wait to see the new design in action!
You could put a couple of ShockWatch indicator labels inside Tombstone to see how many G's its actually experiencing. That could be useful info for future reference.
I absolutely cannot wait to see the King of Kinetic Energy dominate in the BattleBox once again. We have been long overdue!
Once upon a time, as nerds are prone to doing, I got into a discussion about what would be the best gear to have during a zombie apocalypse. I stated that I would like to have a battlebot, specifically Tombstone. Of course, the ones who didn’t think of something like that were the ones to point out issues with battery recharging and replacing. Nevertheless, having Tombstone undercutting a zombie horde while you sit safely out of harm’s way, would be a glorious experience!
Tombstone has no chance of surviving, he can only go on smooth ground, he does not have a front wheel, and if he goes on a road he will most likely get stuck.
Tombstone has no chance of surviving, he can only go on smooth ground, he does not have a front wheel, and if he goes on a road he will most likely get stuck.
Tombstone vs Cobalt= Explosive Destruction. When Cobalt had the horizontal blade. It'd be the ultimate dream match I and the fans would like to see.
I hope Tombstone can make an epic comeback. This Bot is the absolute GOAT and wow did I enjoy it just mauling any and all who dared get in it's way! I hope these tweaks are enough to get you and that amazing Bot back on track. You are a LEGEND, Ray. Good luck to you.👍👍👍👍
Tombstone is the reason I started watching battle bots. So glad Tombstone is still fighting. I can't wait to see Ray and Tombstone battle it out. I hope you win another championship
No. MORE FIRES!!!!! A burning blade of fire!
Add a flint striker to the blade so when it spins it generates sparks! :)
Me and my dad are hyped for the face offs. There is gonna be chaos for sure.
I just started re watching Battlebots season 1-8. Season 5 and 6 definitely seemed rough on those electronics. Many burndowns. Fun to see, not fun to see your favorite go up in flames 😅.
Where do you watch it?
@martins4446 UA-cam with the Max subscription. Had to watch Season 1 and 2 just the fights in a playlist. 19$ a month unfortunately for the Max subscription
wish you the best Ray
Ray and Tombstone are Legends in the game, awesome to see you still using Tombstone and creating massive carnage in the battle box.
Lets go, Ray got the Xlx2 in there. She gonna rip
I mean mortician did amazing with this new set up , hopefully the same
Will go with tombstone
I love the design of your robot ❤
Love to see you Ray back to Carnage
I've got a lot of faves in BB but the very first time I saw Tombstone in action I fell in love - this thing deals some serious devastation!
excited to see what comes of the less flammable version!
Good luck Ray
-- I like it. Been discussing such changes with you for years. The dual actuators for the weapon, when you first start it, momentarily, it's always going to spike to one of them but it is a great step in the right direction. It's the dampening systems that I've wanted to see the most, and that gap between the back of the machine and the battery enclosures. Pending all this works, if there was just some way you could spin that weapon up faster. That's going to be a thing.
Tombstone is by far my favorite battle bot. I think with the modifications you are making. You could win another championship. Best wishes from Virginia.
Considering how hot and wild the fires raged so far it'd still be tempted to put some sort of light foamy fireproof barrier between the drive and weapon batteries, if just to get a couple extra seconds out of it. Beautiful solution you've got there.
I can't wait to see Tombstone win another giant nut or bolt. I feel Tombstone will go far this time. At least I hope he does.
I hope you win next season ray never mess with the grim reaper
I love this robot, really cool to see it in detail. Greetings from Brazil.
Ray Billings And Tombstone The King Of Kinetic Energy Is The Reason I Watched BATTLEBOTS.
@Ray Billings, Just one small thing Ray and it's a problem that Scorpios has been dealing with and that is over heating. If anything you could mount a small CPU Fan and drill some holls in those new cases to let the heat disapate. Just tryin to help ;) Good Luck!
That's mainly only when you over -volt them
They are trying to deal with a specific problem, with the brushes on a magmotor overheating. Really in this case (and I love magmotor btw) the brushes just aren’t really designed for the amount of abuse we dish out. I’m curious to see how well his modifications work out!
It's interesting seeing one of these robots up on a work bench next to someone close up. It actually looks big sitting next to someone like that. They do not look very large on the tv in the arena.
It is looking great Ray. Go get 'em.
Can't wait to see Tombstone back in action
Thanks for the video. Hopefully no more Ghost Rider moments.
Am I the only one that noticed his calendar is 7 years old?
That’s hilarious! I never noticed that! 😂
That calendar was a gift from a sponsor so it stays up 😊 I’m glad for their sake that you noticed it!
Alright I'm designing theme parks in Planet Coaster themed to Battlebots, Tombstone will have a Mack Rides LSM Coaster and it will be named Tombstones Grim Revenge. It will be in Battlebot Kingdom: Haunted Hills
Love love LOVE THIS!! 😂❤🎉
I like how tombstones driver is just a happy guy to but there.
Good luck! I Hope you will terrorize the arena
I have been using Castle for over 22 years in RC airplane racing
I'm in the RC car side of the hobby where to many they're known as Castle Cremations for their tendency to catch fire lol
Nice mounting upgrades. Does anyone run accelerometers and have data on the G forces experienced with the bigger weapon-on-weapon hits? Would be interesting to see.
You guys are amazing I was there watching you guys in CA when the you guys went up against rotator and sadly you guys lost power 2 seconds before for it went to the judges and I even met one of your teammates who sat next to me, my sister, and mom all the way back in 2019
Ray I can't wait to see you return to the Championship. With the rule changes you won't get counted out for having one wheel ever again. I always felt you got robbed when that happened. I expect you to create some carnage my fellow old guy. 😁
He said in the match after he fought skorpios that he didn't know why he got counted out because he could in fact drive on one wheel
My favorite BattleBot battle will always be between Tombstone and Witch Doctor!!! Lets do it again!!!🙏👌👏👏
I would love to see a battle between Tombstone and Hypno-Disc!
Ayy..good day, Ray Billings!!
I'm still concerned about the temperatures of the batteries and the batteries over heating.
A honeycomb design of the battery holder walls still allows for strength and some air flow to keep the batteries cooler.
I believe that (And I'm not being "That guy" who nitpicks, 'cause I'm a big fan and longtime watcher of BB) the teeth on the blades, when broken will cause an imbalance of stability, thereby causing a few outcomes:
1. The wires could dislodge from their batteries (like the Free Shipping fight from Season 6).
2. The batteries could overheat and catch fire (like the RotatoR and Capt. Shrederator fights).
3. The battery itself could dislodge from its position, leading to strain on the wires, causing them to fray (similar to the first problem).
To fix this:
1. Double-checking how secure the wires are connected to the batteries (before and after each fight).
2. Possibly adding a different kind of wire to reduce the amount of heat (because it might not just be the batteries that start the fire).
3. Inserting an metal clasp or "well" with walls deep enough for the batteries to be held in place (yet the walls would have enough of the battery go above it for easy removal).
Tombstone is my favorite robot, and I hope that you can win the championship, I trust you, and that you drive it wisely, good luck :D
Will the weight difference side to side be an issue with the drive battery all the way to one side instead of the middle, to balance it out?
Against the weight of the robot itself, the batteries just don’t affect balance all that much. In my case I wanted the drive pack kind of separate from the weapon packs - you know, in case something bad happens 🤣
You need to add two horizontal vertical plates to enforced the battery box From being crushed Is in my opinion I loved that bot when it frst came out Keep up the good work Hope you win another big nut
With the impact shocks getting ever greater, it would be interesting to see the shock mounting for the wiring. Ray; do you have any idea how many g’s of shock force the wires and electronics need to endure in a big hit? And how much just the wires weigh? With that much current that’s a lot of copper!
The weight of the wires does add up, and a lot of times people forget that when they CAD out their designs. It’s probably a couple of pounds at least. I might try weighing it all when I get closer to having it running.
I usually use some form of clamping to hold the wires in place. I’ll try to add more specifics when I finish assembly so you can see.
Thank you Ray. In a big hit, steel robots look like jello in slow mo from the outside. Wonder what the insides are doing?
Tombstone becoming great again?
Please come back to Battlebots Ray!
Go tombstone!!!
Tombstone ready to kick some bot ass
Hi Ray! with the rule changes, you wont get counted out for only having one wheel if one gets knocked off, or if the drive motor locks up! i know you said you can drive on one tire, and ive seen it with mortician in the proving grounds with katkong. so as long as that deadly, deadly weapon is still spinning, you are NOT out just yet! so when faceoffs, and world championship 8 rolls around, get in there, and show the world what tombstone is capable of!
Surprised it stays together with those shocking welds
You realize now you should add a tiny flame spurter in there, just for a puff or two? Fire it off just after the fights start (:
You mentioned the batteries getting warm... Any thoughts on designing some 'vent holes" in the sides of the tpu battery slots? Otherwise, the batteries are basically just surrounded with one big insulating sock. Maybe holes/mesh/"grille" on the side facing internal to the robot.
Warm in this case is not really hot, so my concern is more about the strength of holding than temperature. This exact setup has worked fine in the middleweight so we’re going to give it a try in the heavy
What about using 18650 with individual enclosures like on a cordless drill battery. And the CID could isolate the battery in case of problems, protecting the rest of the pack.
Great stuff Ray, is BattleBots being televised this year? What channel?
I worked for a mobile phone case manufacturer and we used TPU plus a secondary material, D3O. We had TPU in a corrugated type of form with the D3O material. D3O works a bit like wet sand, if you hit it hard it does not move, it absorbs the energy, if you hit it soft, it does move. I seriously think you should get some sponsorship from a mobile phone case manufacturer because it would work out well for them.
How come you have not got TPU on the bottom? I have seen some craziness in the battle box, with all angles vulnerable. Also, where does the heat go in this arrangement, or is that not a problem in 3 minutes?
Also, does it need a 'Titanic' approach where each group of cells is firewalled off?
I wish I was not an armchair fan of the sport as I would like to do things like the battery housing myself! Anyway, Tombstone for the win!
Ray set the BAR for sure Just to bad Tomb stone is its own worst enemy when the blade hits the floor.
I can't wait to see the king spin again
curious if you might have room in there to mount a G force recorder to collect some of the force impacts experienced? Could be interesting data!
Is any of these fights gonna be on UA-cam ?
That’s the plan. This series is being filmed for UA-cam specifically
You may want to use some foam to buffer the space so you see less shock loads pulling on the TPU, hopefully preventing it from ripping.
do you have a plan to modify the drive motors so they dont lock up during a big hit?
Has an Bambu Lab Printer, automatic sub and like :D
I now wonder how I have made so many bots without it - one of my favorite tools!
Great, now you really need to do something to protect those wheels. Tombstone lost several fights already because had one of the wheels damaged and couldn't move properly anymore. Considering you only have two, one single good hit in one of the wheels is already almost game over.
Why you don't semi-recess the wheels horizontally as they appear to get ripped off occasionally?
Would it be a terrible idea to float items rather than fix them down? Pad around them with a material that won't stay squashed and let the items move around a lot in that padded space ?
Some lightweight items, like radio receivers, can do this just fine. Pad them well, tie them to an internal wire, and they survive just fine. The heavier things though like batteries are much more problematic.
So cool
Is it possible to protect Tombstone's chain. In its last few seasons, you've had a number of broken chains. Also is it possible to make a shock system to absorb some of the impact from transferring back?
Why not use multiple smaller motors for the weapon like Bite Force did instead of one big motor? Seems like that would help solve weapon reliability issues
If we ever switch over to a brushless setup we would be doing that.
get 'em
hell yeah BambuLab user!
We'll see
I am tombstone #1 fan!!!
Is the fight being streamed somewhere? I'm in Europe and I have noe chance of going there…
The Faceoffs series will filmed for UA-cam, so it will be available to be seen everywhere. I’m not sure of when they’ll have it up though
What about protecting tires inside frame like minotaur does ?
Easier said than done. The tires need to be as wide apart as the weapon spin circle, or the robot is just stupidly hard to control. So they can't get any narrower than they sit now, which would mean the frame would need to be significantly wider. And that is just weight that I would rather allocate to the weapon system :) It's not a bad idea, but then the robot wouldn't really be Tombstone anymore.
i know im asking too may questions, but many people wanna know if you ever use tombstone to mow your lawn
The nose of the robot just drags on the ground. In a metal arena it's not a problem, but anything off road it would dig in and not be able to drive.
@@ray9368 you heard it from the man himself, it has been confirmed that he does NOT in fact use a 250 pound death machine to trim his grass
Where can we watch seasons of battlebots??
Hi ray. I have a question one of the other commenters asked from the video where you modified the wapon bar during the 2018 season: do you turn off the weapon before a big impact or do you just take a leap of fath and hope the bar doesnt snap?
Typically no, I don't turn it off before a hit. The weapon takes a while to spin down so it really wouldn't help. The only time I tend to turn it off is if I'm getting pushed into a corner, and I just don't want to overheat everything.
@@ray9368 like when beta cornered you in that match in season 2. yeah
Tombstone is cool :D ... but why dont you protect the wheels by a pair of frames around them? They are so exposed...
He has fought against very strong robots that break the wheels, the tombstone wheels are resistant enough, not to mention that he faced a minotaur, and being faster he could not reach the tombstone wheels, also (it is just a theory) if he He makes an armor for the wheels, probably they are only glued or welded, and also, maybe he falls on his side due to a crash, and stays like that, unable to move, and maybe, an armor like that makes him a little slower (I don't know). The truth is, but he knows what he's doing, let's just hope he wins) 😎💖
I'd like to see some wedges in front and behind the wheels to protect them. Exposed wheels are not a good idea with the power these bots have now.
It's always about weight management really. Anything sturdy enough to really protect the wheels would weigh a lot, and I'd have to take that weight from something else. And I just don't want to do that :) There may be ways to do more of that down the road, but with the current layout it would be pretty difficult to make happen.
Are you running bolts that are over a foot long through the TPU battery boxes? Why not use shorter wood screws or lag bolts that thread direct into the TPU to save weight?
Edit: Also, if you are doing that so you can use nuts, I personally like to design hexagonal holes in my prints where I glue locknuts in place. That makes it to where you don’t need a backing wrench when tightening bolts. I don’t know how that’ll work for a heavy, though…
The bolts are around 7 inches long and really don’t add significant weight. Most of what you describe would fine up to a point but the shock loads seen here are just extreme. Through bolting will be stronger.
One of my favourite robots.
I have to ask why is there a Macdonald's logo inside the battery compartment?
Robot destruction - I'm lovin' it!
It's just a 3 - this was frame 3 for that season :)
At 4:55 what do you mean when you say "in series parallel"? And how does it change the output going towards the motor?
Two batteries in series, you add the voltage. Two 22.2v batteries in series equals 44.4v. Two batteries in parallel you add capacity and amperage. So the same 22.2v batteries with 6500 mah capacity (and 100c discharge rate, so capable of 650 amps briefly), if you have them in parallel they are still 22.2v but 13000 mah capacity and 1300 amp capability.
8 packs set up in series/parallel is 44.4v, and 52000 mah capcity and 5200 amp capability. Now those numbers are kind of large, but there is no way that these batteries will be able to put out that amperage for any length of time. But that is how it is wired up. 4 pairs in series, then wired each pair in parallel to get the voltage I need and the amperage.
I could probably explain it more in depth, and heck that might make for a decent video someday. But that's the basics
@ray9368 Thanks for the response. I'm currently designing a 30 lb battle bot for my college right now. I know a decent amount, but there are still some specifics that i need to become more exposed too. I have always had a hard time deciding what electronics, motors, batteries, etc.
The club I run at the college already had motors that i use. They are 24V amp flow E30-150 (weapon) and andy mark redline-775(drive). And they run on a 6S lipo, off the top of my head i think it is 6000mah, 120C. But im still trying to learn how that correlates to choosing correct ESCs or motors.
I'm looking to upgrade to brushless drive and weapon motors. But most ones that i find run at an 8S setup and i am kind of unfamiliar with both the voltage and the brushless motors. For the weapon I was look at castles 2028, 800kv sensored motor. But with my research it has been hard to find information specifically for featherweight battlebots.
I have also been looking for brushless drive motors but haven't had much luck with my research. I currently have some KDE4012XF-400 that were previously used in a quadcopter. But am having a hard time mixing them to work for a drive system.
Speaking as a non expert, why not use layers of foam, rubber etc? That way the impact is slowly absorbed. Im just worried the 3d print will fracture and youll have the same issue?
Essentially, layers of foam is how we’ve always done it. For a long time that did work well, but the impact loads now are just a lot higher. So a more slid approach was needed
i woold make triangle frame inside box, hangin motor in it, sides of box triangle rips too, n hangin elektronix inside to motor, away from walls
nise fites dude 🤩🤣🤩
No More Fires=No Cremation
And no more wheels problem