Thank you! Sadly I cannot take all the credit for that hubmotor render as that was commissioned, but I edited and filmed the rest of the video myself besides those 15 seconds.
Oh baby! Mad respect to the ambition to direct-drive your weapon. Cheesecake the antweight robot approves! Great way to save weight, albeit at the expense of potentially damaging the weapon motor, I'm excited to see how it holds up!
The hubmotor system should be very durable. I think it would be especially good for horizontal spinners which tend to lose belts constantly due to long belt lengths and low rigidity.
@@JustCuzRobotics - Darn it, you're right, that's a really good use case. I'm in the early design stages of my beetleweight, so I might just do that instead of a traditional belt system.
That is the hope! My goal with Just Cuz Robotics is to lower the barrier of entry into the sport of robot combat for everyone. I think a purpose built weapon motor is the best way to do that going forward.
@JustCuzRobotics your definitely on the right track. So far, all your videos and products have been really helpful. The only suggestion I would have would be to offer some of your boards pre-soldered since most people starting out don't have fume extractors, and it's not always an option to open a window in the winter
I believe that if you want to build and fix your robot you probably need to learn to solder. A fume extractor while a nice to have isn't an absolute necessity. A few people told me they solder in a bathroom with a vent fan going.
Yeah it was definitely Monsoon inspired, but the pivoting body thing was just totally impractical to do at 3lb so it ended up a bit more uppercut in form.
psyched to see how if the flywheel gearing will hold, and how it will drive with the gyroscopic forces of the weapon potentially cancelled out by the flywheel. Also cant wait to see how the direct drive motor will work.
The flywheel cancels about 60% of the weapon Gyro so it's not perfect but it's still extremely helpful. The rubber disk driving the flywheel is sacrificial and probably will get shredded by the end of a fight but it costs next to nothing to replace.
@@JustCuzRobotics I love the fact that the rubber disk covering the flywheel is basically a weapon belt. It's just using compression instead of tension to transfer motion.
Incredible redesign! Really smart to not rely on your weapon for self-righting and I'm so excited to see the counter-gyro flywheel in action, especially with it intended to store energy! I was away and couldn't catch NHRL this weekend, but I'm pumped to check out some highlights.
I’m redoing my bot right now(actually it’s pretty similar to your 4.0 division which made me laugh when I saw your design) and I have extra weight to spare since my new chassis is gonna save a bunch of weight and I might borrow that fly wheel idea. That’s so smart to try and I don’t think anyone has yet on a bot this small. The beetles are getting to the point where people can actually try stuff like this and it’s awesome
I'm definitely not the first to do a flywheel at 3lb, but maybe like 3rd or 4th? With the flywheel and no front ends, the bot is still under 3lbs, while Fireball 3lb is 3.5lbs with their flywheel, so it might technically be the first
The NEW Division looks awesome, stronger, and more robust than the previous version. That new Division will surely win the NHRL 2024 for sure or at least to the Finals. Looking forward to see it.
When you said the flywheel had 3 times the energy, but only counteracts 60% of the gyro, did you say that right? I would of thought that the rotational energy and the gyroscopic forces would be directly proportional.
@@JustCuzRobotics I see. Thank you for clearing that up and taking the time to respond to me and teaching me something that I must have missed. Cheers!
I understand that this is probably a vast improvement and I can’t wait to see what this new Division can do. It’s the bot that competes at NHRL that I am the most invested in. However I don’t like the new look. I loved the old one so much and as much I can’t wait to see what this can do I’m gonna miss the old look.
That is certainly fair. It's a big departure and it sortof feels like completely starting over. But I'll be able to make changes in the future much more easily with this design archetype without it costing an arm and a leg, so I can evolve the appearance a bit down the line.
great design! however, i have a question: since the flywheel has so much energy stored, when your blade hits something and stops, wont the flywheel keep spinning (thus, the knurled wheel) and shred the TPU disc? how does the setup compare to a spur gear design? thanks
You are exactly correct! And that's intended to happen since the alternative would be transferring all the flywheel energy into the weapon and that's a ton of energy to handle. It would probably shred normal gear teeth. The TPU rubber disks cost $0.32 in plastic to replace so I can do that every fight if needed.
@@JustCuzRoboticsoh, that makes sense. have you ever thought about adding a really stiff radial (torsion) spring in the disk/gear somehow? i believe it wouldn't affect spin up time so much and could maybe reduce the amount of energy received by the motor on impact, might also reduce the force of the impact overall tho, idk. a friend of mine used a one-way bearing on a vertical spinner robot, it pretty much nullified every impact to the motor, but it did reduce the damage caused by the bot, it would be interesting to see somebody testing this.
Thats fire dude. I was thinking about doing something akin to a mini monsoon myself with invertibility, duplicated sides on a 45 degree angle and programming in a switch the just invert the bot at will, but always had issue trying to figure out what to do with the motor. That hub might just be trick to make it fit!
Seth, that thing will kick ass. But I have mixed feelings about the design because it is not like any division I have ever seen before. Also, with the right luck and skill, you might beat lynx. Also I have an interesting idea. What I’d Division was a drisk?
A drisk would mean the blades are half the thickness, worse for fighting horizontal spinners. But I could probably make a drisk version of the hubmotor... Would be better for bots with a smaller than 6 inch weapon
I've only been watching you a few weeks but as soon as I saw the design breakdown, I knew this was Gona rip! Ironically, I've wanted to comment about using counter balance wheel to aid driving
I've probably gotten a few comments over the years recommending this but it is a massive undertaking. The flywheel system adds half a pound to the robot and a lot of additional complexity and precision. It's also by far the most expensive part of the bot - PCBWay made me the parts for free but it would have cost over $150 for a single flywheel assembly out of pocket. I was not as confident in my ability to pull this off until I put weeks of thought into it. And I explored a lot of different ways to spin the flywheel before deciding on the friction/tangential drive system.
@@JustCuzRobotics well done man, I love watching the creativity and problem solving flow, you always lose something to gain something no matter what it is you're doing. Cannot wait to see this thing debut
I enjoy the new division, but would you bring back division 3.0 for a few more matches, perhaps under a new name like Fraction or something? Because I enjoy the chaos Division 3.0 and other tower verts (like deep six) bring. But how much KE did you lose with the smaller disk, and how much smaller (in terms of diameter and weight) is the disk?
The old weapons went up to 255g and 7.5inch diameter. The new weapon is 170g and 6in diameter, but the weapon RPM is substantially faster. V3. Was 211mph and V4 is almost 300mph so it has a similar amount of KE.
As far as bringing V3 back, I honestly thought about selling it so someone else can do that for me. I have a small apartment full of robots and I have 2 almost complete Division V3 copies that could use a new home....
We might still see some bouncing around, but you're right, I had to sacrifice the 7.5inch weapons I've used since 2019. Synthesis 3lb has an 8inch weapon so I already lost the big vert crown a while ago. But it's okay, Subtraction still has blades with up to 10ninch effective diameter 😁
![Division V4: Hubmotor Weapon & Counter Gyro Put to the Test! [NHRL January 2024 Event Recap]](/img/1.gif)
It was inevitable that division would end up with a counter-gyro. Can't wait to see what it can do :D
What in the name of Uppercut/Monsoon/Repperoni!
Can't wait to see it in action. The clips at 1:56 are really well done.
Thank you! Sadly I cannot take all the credit for that hubmotor render as that was commissioned, but I edited and filmed the rest of the video myself besides those 15 seconds.
Oh baby! Mad respect to the ambition to direct-drive your weapon. Cheesecake the antweight robot approves! Great way to save weight, albeit at the expense of potentially damaging the weapon motor, I'm excited to see how it holds up!
The hubmotor system should be very durable. I think it would be especially good for horizontal spinners which tend to lose belts constantly due to long belt lengths and low rigidity.
@@JustCuzRobotics - Darn it, you're right, that's a really good use case. I'm in the early design stages of my beetleweight, so I might just do that instead of a traditional belt system.
Lets gooo seth! Fun meeting you yesterday!
That weapon motor is fantastic. Literal custom motors for combat robots. Things are moving.
That intro, damn hype!! Look's great, can't wait to see it in action!
Absolute flames- cannot wait to watch all the fights V4 was in that I missed yesterday!🔥🔥🔥
Love the concept of a just add a blade drop in wepon system. As a new builder, designing a reliable wepon system has been the biggest challenge so far
That is the hope! My goal with Just Cuz Robotics is to lower the barrier of entry into the sport of robot combat for everyone. I think a purpose built weapon motor is the best way to do that going forward.
@JustCuzRobotics your definitely on the right track. So far, all your videos and products have been really helpful. The only suggestion I would have would be to offer some of your boards pre-soldered since most people starting out don't have fume extractors, and it's not always an option to open a window in the winter
I believe that if you want to build and fix your robot you probably need to learn to solder. A fume extractor while a nice to have isn't an absolute necessity. A few people told me they solder in a bathroom with a vent fan going.
LETS GOOOO NEW JUST CUZ VID!!!!!
Definitely getting some Uppercut vibes from that beast! Kick some bot!
Yeah it was definitely Monsoon inspired, but the pivoting body thing was just totally impractical to do at 3lb so it ended up a bit more uppercut in form.
Super psyched to see how it drives in combat with the counter-gyro flywheel :)
giving shades of uppercut
I can’t wait to see how it’s drives around the arena!
the intro was sick as
That’s sleek as hell. Plus that new bar has such a nice design to it
Thank you! Hoping it works as good as it looks.
This kinda reminds me of a mini uppercut, can't wait to see some future videos on its progress!!
Monsooooooooooon! Awesome variation and original ideas mixed with monsoon esk things. Awesome job
Thank you. Monsoon is one of my favorite bots and I wanted to make homage to it.
psyched to see how if the flywheel gearing will hold, and how it will drive with the gyroscopic forces of the weapon potentially cancelled out by the flywheel. Also cant wait to see how the direct drive motor will work.
The flywheel cancels about 60% of the weapon Gyro so it's not perfect but it's still extremely helpful. The rubber disk driving the flywheel is sacrificial and probably will get shredded by the end of a fight but it costs next to nothing to replace.
@@JustCuzRobotics I love the fact that the rubber disk covering the flywheel is basically a weapon belt. It's just using compression instead of tension to transfer motion.
holy cow, this thing looks like a beast. So excited to watch you tomorrow!
Incredible redesign! Really smart to not rely on your weapon for self-righting and I'm so excited to see the counter-gyro flywheel in action, especially with it intended to store energy! I was away and couldn't catch NHRL this weekend, but I'm pumped to check out some highlights.
Looking forward to the design breakdown! Looks good
division is here to Divide the enemies and Conquer the leaderboards!
An absolute work of art.
Aw thank you!
I’m redoing my bot right now(actually it’s pretty similar to your 4.0 division which made me laugh when I saw your design) and I have extra weight to spare since my new chassis is gonna save a bunch of weight and I might borrow that fly wheel idea. That’s so smart to try and I don’t think anyone has yet on a bot this small. The beetles are getting to the point where people can actually try stuff like this and it’s awesome
I'm definitely not the first to do a flywheel at 3lb, but maybe like 3rd or 4th? With the flywheel and no front ends, the bot is still under 3lbs, while Fireball 3lb is 3.5lbs with their flywheel, so it might technically be the first
Awesome ❤
Awesome! Can't wait to see it in action! Also, I love that the minibot is named "Remainder." 😂
The NEW Division looks awesome, stronger, and more robust than the previous version. That new Division will surely win the NHRL 2024 for sure or at least to the Finals. Looking forward to see it.
I am looking forwards to this version of Division and how it performs.
Ooooh this looks AWESOME!!!
THIS IS AWESOME!!!!
I... love this thing. 😍
The color scheme makes those weapons really stand out^^ remainder and division got my eye
When you said the flywheel had 3 times the energy, but only counteracts 60% of the gyro, did you say that right? I would of thought that the rotational energy and the gyroscopic forces would be directly proportional.
Nope like I explained its momentum that cancels not energy. Momentum is I*W while KE is 1/2 I* w^2
@@JustCuzRobotics I see. Thank you for clearing that up and taking the time to respond to me and teaching me something that I must have missed. Cheers!
I understand that this is probably a vast improvement and I can’t wait to see what this new Division can do. It’s the bot that competes at NHRL that I am the most invested in. However I don’t like the new look. I loved the old one so much and as much I can’t wait to see what this can do I’m gonna miss the old look.
That is certainly fair. It's a big departure and it sortof feels like completely starting over. But I'll be able to make changes in the future much more easily with this design archetype without it costing an arm and a leg, so I can evolve the appearance a bit down the line.
great design! however, i have a question:
since the flywheel has so much energy stored, when your blade hits something and stops, wont the flywheel keep spinning (thus, the knurled wheel) and shred the TPU disc? how does the setup compare to a spur gear design? thanks
You are exactly correct! And that's intended to happen since the alternative would be transferring all the flywheel energy into the weapon and that's a ton of energy to handle. It would probably shred normal gear teeth. The TPU rubber disks cost $0.32 in plastic to replace so I can do that every fight if needed.
@@JustCuzRoboticsoh, that makes sense.
have you ever thought about adding a really stiff radial (torsion) spring in the disk/gear somehow?
i believe it wouldn't affect spin up time so much and could maybe reduce the amount of energy received by the motor on impact, might also reduce the force of the impact overall tho, idk.
a friend of mine used a one-way bearing on a vertical spinner robot, it pretty much nullified every impact to the motor, but it did reduce the damage caused by the bot, it would be interesting to see somebody testing this.
The current system works well so I'll probably keep it more or less the same
Le gasp. It looks amazing. Can’t wait. Chris is already shaking in his boots
THIS IS SICK!!!!!!!!
So there's an outrunner and an inrunner version?
No, not sure what you saw that made you think this. Watch the whole video it's explained in the last 3-4 minutes.
@@JustCuzRobotics for some reason I was thinking Subtraction used an inrunner, but then I remembered that was direct mounted too
Thats fire dude. I was thinking about doing something akin to a mini monsoon myself with invertibility, duplicated sides on a 45 degree angle and programming in a switch the just invert the bot at will, but always had issue trying to figure out what to do with the motor. That hub might just be trick to make it fit!
Yeah hubmotor should be ideal for this for sure
Division is probably my favorite beetleweight due to its rolling and stuff
"confuration" 2:22
Ugh... **Configuration**. Why can't video editors have spell check?
you should try putting that motor on a ant weight
Ha that would be insane. It's almost half the weight! I think maybe a smaller ant specific version would be a good idea tho...
Looks like an angry chicken. Good luck!
Seth, that thing will kick ass. But I have mixed feelings about the design because it is not like any division I have ever seen before. Also, with the right luck and skill, you might beat lynx. Also I have an interesting idea. What I’d Division was a drisk?
A drisk would mean the blades are half the thickness, worse for fighting horizontal spinners. But I could probably make a drisk version of the hubmotor... Would be better for bots with a smaller than 6 inch weapon
@@JustCuzRoboticshow thick is the weapon
What’s Remainder?
It's a 0.44lb minibot. The flywheel system is heavy so in some cases I need it for extra weight at NHRL as they have a 1lb multibot bonus.
Imagine if Ripperoni comes to Season 8 looking like a big version of this
3:00 Will the flywheel energy and weapon energy add together? 500J + 1500J = 2000J
Not exactly. The flywheel will slip on hits so it isn't adding energy in the moment of an impact but it will slowly spin the weapon up after a hit
@@JustCuzRobotics wait, aren't they spinning opposite to each other so they can cancel the gyroscopic force of each other?
Yes they cancel gyroscopic momentum, but that's different from the kinetic energy delivered on a hit
Orange Monsoon XD (will be hard to defeat)
Can’t wait
I've only been watching you a few weeks but as soon as I saw the design breakdown, I knew this was Gona rip! Ironically, I've wanted to comment about using counter balance wheel to aid driving
I've probably gotten a few comments over the years recommending this but it is a massive undertaking. The flywheel system adds half a pound to the robot and a lot of additional complexity and precision. It's also by far the most expensive part of the bot - PCBWay made me the parts for free but it would have cost over $150 for a single flywheel assembly out of pocket. I was not as confident in my ability to pull this off until I put weeks of thought into it. And I explored a lot of different ways to spin the flywheel before deciding on the friction/tangential drive system.
@@JustCuzRobotics well done man, I love watching the creativity and problem solving flow, you always lose something to gain something no matter what it is you're doing. Cannot wait to see this thing debut
I’m hypedddddd
Oooh, I see some Nice UHMW....
I enjoy the new division, but would you bring back division 3.0 for a few more matches, perhaps under a new name like Fraction or something? Because I enjoy the chaos Division 3.0 and other tower verts (like deep six) bring. But how much KE did you lose with the smaller disk, and how much smaller (in terms of diameter and weight) is the disk?
The old weapons went up to 255g and 7.5inch diameter. The new weapon is 170g and 6in diameter, but the weapon RPM is substantially faster. V3. Was 211mph and V4 is almost 300mph so it has a similar amount of KE.
As far as bringing V3 back, I honestly thought about selling it so someone else can do that for me. I have a small apartment full of robots and I have 2 almost complete Division V3 copies that could use a new home....
i am gonna be very weirded out by the chonky division instead of it being wide
Looks beefy
🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
Uppercut
Oh no what did you do this time
R.I.P old division that big weapon will be missed and that bouncing around
We might still see some bouncing around, but you're right, I had to sacrifice the 7.5inch weapons I've used since 2019. Synthesis 3lb has an 8inch weapon so I already lost the big vert crown a while ago. But it's okay, Subtraction still has blades with up to 10ninch effective diameter 😁
@@JustCuzRobotics good to know 😀
🍿
This is bot art
Cool tech, looks hella goofy though.
This isn't terrifying
Not at all 😥
Sad it's not like deep six anymore more like uppercut
What does everyone have against uppercut?
@@JustCuzRobotics it's powerfull but half the bot isn't the weapon anymore😢
4.0 is just beautiful Seth! Just beautiful.