Improved Flywheel Flipper Battles Again - Loft Part 5
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- Опубликовано: 6 апр 2025
- Thanks to PCBWay for sponsoring the project, check them out at my affiliate link: pcbway.com/g/1...
Sporting an upgraded flipper system to try and improve reliability Loft fights in it's second event against a new selection of opponents. The changes fixed some problems but seemed to have caused others, and now the drivetrain is playing up.
Interested in fighting small battlebots? There may be a club near you! They are often active on facebook, or send me an email and i'll try to connect you.
For whatever reason, bypassing the sensor of the flipper seemed to improve the flipping power? Wonder if the sensor was triggering early somehow, but probably not as that wasnt shown in the slow motion shots. Eh cant compain. Will forgo the sensor completely in future versions so it's a dumb system which is just how my mechanical monkey brain likes it.
Improving my knowledge of Audacity and audio processing in general. This videos voice over was using my phones microphone and I think it sounds better than the proper condensor mic used previously. Just needed a sprinkle of noise gates etc to get it about right. I need to talk louder at the mic to animate my voice more, Ben (team panic) is alot better at that, should follow his example. Done need fancy equipment to make videos! Free editing software, phone mic and camera, set and done.
Luckily dodged content ID with all that music. Ad rates are 4.50 per 1k views for me so don't stand to loose too much but that's usually a spare motor or two once all is said and done.
I wonder if you could make a piercing/puncturing weapon that used a similar flywheel energy storage system as loft, considering how much damage your weapon does to your own bot I'd love to see that energy focused into a captive bolt pistol type arrangement would be sick!
@@shallmaddocks4690 I would love to see that
Sound was pretty good. For a great voice-over mic, I highly recommend basically anything by Rode. Lots of folks using their lapel mics, and their NT-USB desktop ones are every bit as good for computers.
Also, nice to be able to buy tech from an Aussie company.
i would suggest to use the arduino as a timing device, mind that servo pulses are each 20ms, but you could make it read the receiver signal and engage the magnet only for a certain amount of time this way you don't need that much precision with the stick, otherwise you could control the duration with a logical switch in the mt12 and a duration amount, however they only have steps of 100ms and they are not too much reliable due to radio protocol packet loss
on my antweight flipper I have the weapon arm mechanically disegnage the flipper at end of travel but I don't know if it's doable with a friction system
idk. I like your kind of flat narrating style
"Haven't tested the flipper on heavier targets."
Mate, Deathroll was right there! Take a swing at the champ. /j
Perfect to start a Sunday morning!
They way you flipped Axe-Bert ontop of its own shell was probably the best finishing move to end a fight! 😄
Oh good lord, that music selection gives me flashbacks to my mechanic job at a bowling alley and they played all those songs everyday.....not fitting for anrobot event (get some techno and metal in there)
It's great to see the flipper working more consistently! Once you get the drive issues worked out, this thing should be unstoppable!
your fluency at disassembling and reassembling your bot is seriously impressive!
Undeniably one of the reasons for success. A good robot thats difficult to repair quickly becomes a bad robot.
These vids are such a fun watch every time. Look forward to the next video!
I could watch robot videos all day.
Funny how most of the other bots look like they were welded together in a garage, compared to the highly engineered Loft.
The quality of sportsman can vary from event to event.
Or maybe its a bit fresh where they're at.
Honestly, that's why I love Sportsman. Because of the lack of spinners, a wider variety of build styles can be used and still be effective.
Plus, I love the look of garage welded bots.
New Broken Link video dropped. Day is now 10/10
Always love to see more videos from you
deathroll just chilling in the corner of the box
very good results! the inner workings are magnificent… i was worried that the crusher would break it
Very fortunate they just missed the battery with their one crush, about 10mm to the right
ideas:
- for the drivetrain stripping: run some bolts through the wheel/gear combo. it looks like it's shearing pretty cleanly along layer lines, this is because the interface between layers is weak. worst case scenario, the bolts add their shear strength, best case scenario (with adequate pressure and metal plates to distribute it), the bolts add normal force btwn the layers, increasing the static friction between them and thus their shear strength.
- build a test stand for the flipper, so you can set it up and repeatedly actuate it against the same load many times, while adjusting things as needed. maybe a weight on a linear rail (with dampers at each end) for the load, with adjustments (add/remove weight, translate/rotate the rail off-axis, etc)
- same thing for the drivetrain probably: build a little "dyno" for it (just a drum with some friction, and a springloaded fixture pushing a drive wheel against it), and drive the motor with an Arduino running a fixed loop of rly aggressive reversing moves to test the endurance
Brilliant work, and really inspiring and helpful videos in the way you break down the engineering aspects
Omnifixo gang represent!
8:35 the entire axe mechamism is a razor e300 scooter. Motor, chain, sprocket, axle, tensioners.
Indeed
Instead of complete manual control of the flipper, a timer-based "backup" using the arduino may be a good idea. Just need to do some experimentation to tune it and find the perfect timing.
love the robot
Maybe for the drive you should try bearings like you said and maybe sls nylon or 3dp titanium for the belt hub. For the motors you should try a metal mount and use thermal paste on the motor and motor mount to use the chassis as a heat sink and do the same thing with the drive esc’s.
Sweet. Great work! Thanks for sharing.
Great matches James
So... Deathroll is a House Bot now?
that pop 'music' must have been rough to fight with, I would have been constantly distracted the whole time. Definitely would have been headphoned up with metal for the other fights.
Really cool to see the flywheel design working now!
I wonder if the extra load on the wheels when you flip is causing them to jam up somehow? It looked like the bot would sometimes drive way worse after a flip.
63th Love your work man
3:42 the light aiming is sending me. I would have had to leave.
It's quite strange that the drivetrain is acting up now. Perhaps the arena surface has something to do with it? Axial forces when turning?
You seemed to do well with the manual clutch control, but I wonder if you could set a maximum time on for the clutch. That might keep the system from eating itself and still be dead simple.
Have you considered switching out the permanent magnet motor in the flipper for an open loop induction motor?
Haven't considered it, would depend on whether or not it can be driven by the basic rc equipment I have
@@BrokenLinkRobotics I think any ESC should be able to run one just fine as long as it has an open loop control mode. I know VESC based controllers do
What is the average lead time for parts from PCBway to AUS?
Hmm I don't have much data but they usually quote 9-11 days for manufacture, then ship with DHL which is 4-5 days from china if you don't need a second courier. Some parts take alot longer though, some shorter.
FRC kid here, always an insta click on the videos
Which team? my team may be playing with yours this weekend
I wish lol, 2374 we missed dcmp by a few places. Which team are you from?
Mentor for 5985
I want to design a wheel flipper mechanism for an antiweight all plastic robot, is it possible? If so how should I do this?
I'm sure its possible but you'll have to work with the limitations of the print. Careful if any clutch surfaces you pick will heat up and melt
The should really turn that radio music off for the duration of each fight.
It's baked into the footage I got from the event, playing loudly over each fight. Not much can be done
@BrokenLinkRobotics I would like to talk with the person that is behind playing the music at these events 😁
It looks like half of thoes fight could have been much shorter. You fliped them over and they couldn't self right, then you flipped them back instead of letting them get counted out.
Sometimes putting on a show is more fun than winning.
Besides, the crowd paid to get in so gotta make that ticket worth it.
First
Its 2:30am let me sleep
Woe project vid be upon ye
What is Deathroll doing in the box? And do they not have imobile wins here? There was several times where you could have just left your opponent, to be counted out, but then you flipped them again, and they become mobile again.
They do have immobile wins, but it's a paying crowd so worth putting on a show if the opponent is ok with it. It's also more testing of my robot