2.5 Years of Ringspinner Combat Robot Development 

Awesome to see the rapid evolution into something totally unique, featherweight version when? 😂

This deserves way more views, amazong look at the whole development process.

RU-vid recommending me a small creator making great quality content about a topic I love? Did I die? Is this what a miracle feels like?

that bot went from "oh its a normal bot" to "why do I hear boss music?"

Having almost no idea what actually goes into this stuff, and not even really close to my lane of enjoyment, I stumbled across this channel via MakersMuse and as you were describing the robot, I thought 'wow, that seems dangerous AF, lets see it!' Then you show the robot, and it looks like an angry coaster, and my concerns drop signifigantly; thinking to myself "that little thing cant be dangerous." But watching it compete with other robots, and seeing the way chunks are flying off, the fully enclosed plexiglas arena, and even seeing these tiny blades gouging chunks out of the arena- it really humbled me at the level of engineering and work that goes into these tiny things. Toys they are not. You've got a sub from me, my good man, and I cant wait to peruse your other videos.

I love this design, I built a Feather Weight ring spinner in Robot Rumble 2.0 inspired by it.

Wow, you could almost use the spinning disk itself for motion instead of legs. Controlling the balance and then learning to drive it would be tricky.

ULTRAKILL ost did not go unnoticed... Awesome bot too.

Love it! I proposed this exact same concept (antweight ring spinner with all the electronics placed inside a custom frameless brushless motor) on the robotwars101 forums way back in 2016, so it's great to finally see someone with the skill to actually build one of these, taking up the challenge!

Ring spinners aren't a hobby, they are an obsession. I've been working on mine (US 454g 3d printed) since 2018. I have been banging my head against different shuffle designs for 18 months trying to find the right formula, but while working on v10.3, I have already started working on v11, which I intend to be a true walking bot :) I've considered the stator ring concept, but I don't think it would stand up well with just a 3d printed ring and no metal to constrain it... it would be hell on magnets. Keep up the awesome work.

Huh, the gyroscopic force put up by the ring is a boon to the bot's stability. Once it's in motion of course, the pit dodges are so fun to watch.

That bot is great, amazing battle! Keep up superb work mate!

I don't really follow combat robotics personally, so this was super interesting! The idea of turning the ring into the motor itself was very cool. Also loved seeing Pancake show up and going "hey, I know that one!"

Love your different design approaches.

I imagined using three pneumatic tires with separate motors for redundancy, in a horizontal equilateral arrangement driving a grooved/channeled ring internally, with the idea some impact would be absorbed before it gets to the chassis.

Awesome to see the behind the scenes, the evolution of the custom design and the outcomes/assesment/remedies!

i honestly love the idea of ring spinners and full body spinners in general. like having your biggest defence literally hit back is just a cool concept. they're pretty impractical as far as im aware since they take a while to spin up and have a lot less actual armour, but that doesnt them from being cool

Really enjoyed hearing about the development journey!

Beautiful build, love the combination of faults and fixes. Definitely hope to see more of your builds.

Always love your detailed facebook posts, thank you for the detailed youtube post!

Fascinating! That was fun to watch

Fantastic breakdown! Idk if I'm ever gonna have enough time to pick up another hobby, but combat robotics are honestly tempting, haha!

Great video! 👍 Hopefully, once you've cracked that concept in the antweight class, maybe we could see it in heavier categories. I can just picture you entering a beetleweight version of Revolve at something like NHRL.

Amazing! Been looking at your designs for a while now

Wonderful presentation!

Is that... the Ultrakill soundtrack I hear?!??!?! Beautiful choice.

Great video. Ringspinners, not easy.

Great presentation!

Awesome vid, I was certainly curious about how you pulled it off. Revolve vs william wagtail was definitely one of my favourites from the event.

Clearly Mr. Bean is a very good engineer. But seriously, this is an amazing video (and I see you do FIRST stuff which is really cool, I'm doing FRC rn)

Saw the FRC shirt and knew this was gonna be good

Super cool! Never thought making your own motor was doable.

Great engineering

Thanks for the video really interesting

Seeing it spin and lift itself could you print an air capture cone set below the bot? You might have some torque troubles with the shufflers because of it but it could be a neat thing to check

Keep Going Bro !!!!!!

awesomeness

Did You consider symmetrical placement of coils like three in front and three in the back? It is possible that this configuration can lead to more symmetrical forces in the ring - maybe even easier start of rotation.

just a thought, i don't know if it is possible. But perhaps you could create down force with the spinner in order to keep you grounded and add more standing weight to the blow when you hit somebody. Perhaps just setting the teeth at an angle would be enough to create the downforce. Interesting video, keep them comming!

With the way the robot is able to skip and roll around just with the outer ring.... what about removing the drive system entirely and just relying on the ring for movement? With some fixed anti-skid pads on the top and bottom of the robot, a tire on the top and bottom surfaces of the ring, and some little solenoids that can intentionally kick the robot up at an angle to put the tire in contact with the floor.

saw your FIRST shirt, as a current frc team member myself looking into combat robotics during the offseason, what would you say is the biggest thing to learn for combat robotics, and the biggest thing from FIRST to forget about when doing combat robotics?

awesome insight into some amazing engineering

Re: walking mechanism... I'm printing a pla tribute of revolve, still trying to get the walking mechanism together. Are you just using steal pins for the 3 holes around the motor shaft/idle pins? How did this hold up through fights? You didn't mention any issues with the walking mechanism, but are there any changes you would make if designing this again? In one of your test shots, before the ring was on it looked like you had a weight on top, was this needed for proper grip, or were you just making sure it would walk at full weight? My pipe dream is to take the weapon from subdivide and slap it on a modified revolve frame. Any suggestions?

What FIRST team were you apart of?

I knew I recognized master boot record for the music. So when are you going to upgrade to a titanium spinner?

Could you design the inside of your robot to be like a version of Ripperoni where you can have a counter gyro system which would then make your robot more controllable at the expense of increased electrical demand and internal complexity?

It sure is an engineering challenge! It's much easier to spin the entire robot, with two side-by-side motors going opposite directions. But then ... how do you actually move rather than spinning in place? I think you can do it with a just a single tilted omni-wheel near the center. First off, imagine a wheel that has the same radius as the distance from the center of mass. If you drive this wheel, the robot will spin in place, with one wheel rotation equal to one robot rotation. So far so good, but you're just spinning in place. Now make it an omni-wheel by placing four rollers around it. This doesn't have perfect 360 coverage, but that's okay. Anyway, it's still just spinning in place, but at least the rollers now allow the robot to slide around some. Now the secret sauce - tilt the omni-wheel so it's not properly perpendicular to the motor axle. This means that one roller is closer to the robot's center of mass; the opposite roller is further from the robot's center of mass. Thus, one roller will be moving too fast compared to the robot's spin; the opposite roller will be moving too slow compared to the robot's spin. This produces motion while spinning, rather than just spinning in place. You can show which direction the robot is "pointed" in by coloring one of the side rollers white. As the robot spins around, the white will flash visible to show the direction of motion. This "tilted omniwheel spinning robot" only requires one motor and one tilted omniwheel. As a bonus, the design is flippable. I think two motors can make the robot a lot more nimble, as well as offering redundancy. Four won't fit. Three does fit, but it's a somewhat tight fit so it's probably not worth the effort.

It's kind of like watching a beyblade with this weapon choice and in this size category.

Which brand and model is your mill? Is it a CNC mill? Thank you

So do you ever measure the watts your drive can put out? Max voltage? Effective weight of the drive pieces?

Bro, where do you find the documents for the motor winding?

YAYYY TEBEBRE ROSSO SANGUE

Omg your hand at 3:00 😬

I wonder where blendo is right now

Enjoyed the video! Fyi, your audio is really quiet.

Your pain is our gain

Do what they did at tesla (carbon fibre wrap around the ring).

🇧🇷

this looks interesting, but my degenerated mind can only see Mr beans son being exited about fighting bots. XD

Cool design now when are you going to scale of up to the level of a heavyweight? 😬😂

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Did you... make a robot Beyblade? The most powerful of all the toys? Even Moses split the sea with a Beyblade you know!

Adult bayblade lol