This footage was provided by the wonderful SWORD club at the Pennsylvania College of Technology in Williamsport, PA, where this competition was held. All footage was recorded on November 6th, 2021 during the semi-annual SWORD combat robotics competition. The robots competing here were either 1lb Antweights or 3lb Beetleweights. All Beetleweight fights were 3 minutes in length but Antweight fights were 2 minutes in length.
Antweights were a double elimination bracket- lose twice and you're out. Beetleweights are hard to explain. Each robot got to fight in three 3-way battles, and based on their performance, the top 12 robots were seeded into a single-elimination final for the event winner title. Just 'Cuz Robotics Website: https://justcuzrobotics.com/ Just 'Cuz Store: https://justcuzrobotics.com/shop
This video is a tutorial covering how to design a spinning weapon and the theory making behind powerful combat robot weapons. I'll explain the importance of MOI, RPM, KE, and other important facets of design. I discuss all of these in the frame of reference of my own 3lb combat robot, Division, so I can contextualize the information in a useful manner. I also use examples from the Battlebots seen on TV and discuss pros and cons of various spinner designs. In part 2 I'll go more in-depth about the actual CAD and simulation techniques I use to verify that a design wouldn't fail in combat.
Want to make your own version of this new weapon? You can now purchase the CAD model! http://bit.ly/BuyAsymDiskCAD
Part 2 now available here:
https://youtu.be/wuK6izW6YfM
Ask Aaron spinner design:
http://runamok.tech/AskAaron/spinner_FAQ.html
All fights of Deep 6 (60lb) at Robogames:
https://www.youtube.com/watch?v=65VYKNqjgng
Wolfram Alpha Chrome plugin:
https://chrome.google.com/webstore/detail/wolframalpha-official/icncamkooinmbehmkeilcccmoljfkdhp?hl=en
...
https://www.youtube.com/watch?v=oc8dGPGdgr8
Join me as I take on the riskiest and biggest project of all - Quitting. To build something. Something amazing, I hope.
Just 'Cuz Robotics Website: https://justcuzrobotics.com/
After School Robots Website: https://afterschoolrobots.com/
Just 'Cuz Store: https://justcuzrobotics.com/shop
Try PCBWay's CNC Machining or PCB Fab using this link for a $5 new user credit: https://bit.ly/PCBWayJustCuz
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
Bloodsport Youtube Channel
https://www.youtube.com/c/bnsrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
@retrograde_battlebot
https://www.instagram.com/retrograde_battlebot/
Bloodsport/BnS Facebook Page:
https://www.facebook.com/bnsrobotics/
#CombatRobotics #JustCuzRobotics
00:00 - Intro
00:28 - Why I Became an Engineer
02:01 - Robots!
03:10 - Former employer: DEKA
05:04 - Just 'Cuz Robotics and More
10:22 - Education through Robotics
14:27 - Why Now?
15:32 - Startup = Hard Mode
15:56 - I Do What I'm Good At
16:46 - "The Dream"
19:31 - What Happens Now?
...
https://www.youtube.com/watch?v=fDkFOWIXNK4
Division may be on its last legs, but that doesn't mean it'll go down without a fight! Take a look to see how Division performed after a 2 year hiatus from a local PA robot combat event.
Want to own part of Division? Email me, team@justcuzrobotics.com, with an offer!
Just 'Cuz Robotics Website: https://justcuzrobotics.com/
Just 'Cuz Store: https://justcuzrobotics.com/shop
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
@retrograde_battlebot
https://www.instagram.com/retrograde_battlebot/
Bloodsport/BnS Facebook Page:
https://www.facebook.com/bnsrobotics/
#CombatRobotics #Beetleweight
00:00 - Cold Open
00:28 - Intro
01:08 - Division Details
02:57 - Event Format
03:29 - Fight 1
05:26 - Fight 1 Breakdown
06:39 - Fight 2
10:02 - Fight 2 Breakdown
12:27 - Repair/Lunch Break
14:17 - Fight 3
17:55 - Fight 3 Replay
20:19 - Fight 4
21:50 - Fight 4 Breakdown
23:30 - Fight 5: Beetleweight Rumble
27:45 - Conclusions
...
https://www.youtube.com/watch?v=A515oIQP6NI
Today I peel back the curtain a bit to talk about the finer details of how the Judges scorecards are supposed to work in Battlebots Season 5. There are a bunch of set rules and definitions, but they are not cut and dry as to how many points to award in what cases. That said, they do talk about what actions deserve MORE points than others. Rotator vs Beta is an example where the guidelines don't quite line up with the scoring that the judges handed to the two bots. Did Rotator deserve all 5 damage points? Why did Beta not earn 3 aggression points? What do the rules say about failing to use a weapon? Let's take a closer look!
Please note in this video I am expressing my own interpretation of the rules. All decisions on the show were made in October when the show was filmed and are final, and I am obviously not going to change the outcome of this fight. I do however feel that Victor Soto was justified in being upset about the outcome here, for all the reasons I will discuss.
Find the full Battlebots 2020 judging guide here: https://battlebots.com/wp-content/uploads/2019/12/Judges-Guide-Rev.2020.0.pdf
0:00 Intro
0:10 Disclaimer
0:18 Scorecards
0:45 Aggression
2:38 Damage
4:35 Devil's Advocate
5:07 Conclusions
6:16 Outro
Just 'Cuz Store:
http://bit.ly/JustCuzStore
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
Bloodsport Facebook Page:
https://www.facebook.com/bnsrobotics/
#CombatRobotics #Battlebots
...
https://www.youtube.com/watch?v=RpQ3Ow5HWqc
This footage was provided by the wonderful SWORD club at the Pennsylvania College of Technology in Williamsport, PA, where this competition was held. All footage was recorded on November 6th, 2021 during the semi-annual SWORD combat robotics competition. The robots competing here were either 1lb Antweights or 3lb Beetleweights. All Beetleweight fights were 3 minutes in length but Antweight fights were 2 minutes in length.
Antweights were a double elimination bracket- lose twice and you're out.
Beetleweights are hard to explain. Each robot got to fight in three 3-way battles, and based on their performance, the top 12 robots were seeded into a single-elimination final for the event winner title. Just 'Cuz Robotics Website: https://justcuzrobotics.com/
Just 'Cuz Store: https://justcuzrobotics.com/shop
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
@retrograde_battlebot
https://www.instagram.com/retrograde_battlebot/
Bloodsport/BnS Facebook Page:
https://www.facebook.com/bnsrobotics/
0:00 Intro
#CombatRobotics
...
https://www.youtube.com/watch?v=X-ERt5i0b2M
This video will focus on how you can intelligently lightweight and optimize your combat robot parts! Using Fusion 360 Simulations, it's easy to mock up different load cases and see how they will distribute stresses on your parts. With this, you can determine what areas of a part are functional and which aren't and thus where you can remove weight from a part and maintain the majority of its strength.
It's worth noting here that this was mostly a quick overview and not even remotely the way I design every part of my own bots. Generally, I learn from seeing simulations of some parts based on particular loading/constraint sets what types of features can be beneficial (say, fillets) and what can be problematic (sharp corners, holes in the middle of a part) in order to avoid stress concentrations and more evenly distribute the load within a part. I would not take the time to simulate several load cases on every part of a design as this would take ages. Rather for parts that look over-engineered, need to be a minimum weight, or if your full robot is designed but overweight, you can select a few parts to analyze in order to determine the best way to save weight. Combat robot spinning weapons, lifter arms, and drive/weapon shafts or other parts that are functionally critical are also great candidates to be analyzed for optimal strength/weight. It can take just a few minutes to set up a quick bend force test to see the factor of safety difference between a steel shaft and a titanium one.
The trickiest thing about simulations is that once you move beyond 'every bolthole is a fixed constraint' it can get quite complicated to set them up properly. If not set up properly, it can lead to completely incorrect results. Below I'll link to some much longer and thorough tutorials that cover the subject in detail.
Also - keep manufacturing in mind. You cannot make a partial depth pocket in a laser-cut or waterjet part and must instead punch through it. Adding fillets on every edge of every face in a pocket is great when you're 3D printing but can massively complicate and or slow down CNC machining.
Lars Christensen works for Autodesk and has a prolific collection of Fusion tutorials. Autodesk's own channel also has many of them.
Simulations for Absolute Beginners: http://bit.ly/SimsForBeginnersLars
How To Make Design Decisions With Simulation: http://bit.ly/SimDesignDecisionsLars
More Comprehensive Simulations Basics: http://bit.ly/SimBasicsAutodesk
Just 'Cuz Store:
http://bit.ly/JustCuzStore
http://bit.ly/BuyDivisionCAD
http://bit.ly/BuyAsymDiskCAD
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
Bloodsport Facebook Page:
https://www.facebook.com/bnsrobotics/
...
https://www.youtube.com/watch?v=EYLI-YIThtw
2023 has been an awesome year with lots of ups and downs. Join me for a walk through memory lane and a discussion of my plans for 2024.
I Quit: https://youtu.be/fDkFOWIXNK4
Just 'Cuz Robotics Website: https://justcuzrobotics.com/
Just 'Cuz Store: https://justcuzrobotics.com/shop
Support on Patreon! https://bit.ly/JCRPatreon
Try PCBWay's CNC Machining or PCB Fab using this link for a $5 new user credit: https://bit.ly/PCBWayJustCuz
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
Bloodsport Youtube Channel
https://www.youtube.com/c/bnsrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
Bloodsport/BnS Facebook Page:
https://www.facebook.com/bnsrobotics/
#combatrobotics
2023 Recap
00:00 - Action!
02:28 - Intro
02:53 - Looking Back
03:26 - Beginning of 2023
04:18 - Quitting my Job
04:49 - Challenges
05:25 - The Upside
05:49 - YouTube in 2023
07:41 - Freedom
08:56 - 2024 Plans
...
https://www.youtube.com/watch?v=wPaPAnC1BLI
Testing out some new upgrades in San Francisco, will Division do better?
Try PCBWay's CNC Machining or PCB Fab using this link for a $5 new user credit: https://bit.ly/PCBWayJustCuz
Just 'Cuz Robotics Website: https://justcuzrobotics.com/
Just 'Cuz Store: https://justcuzrobotics.com/shop
Support me on Patreon! https://bit.ly/JCRPatreon
Instagram: @JustCuzRobotics
https://www.instagram.com/justcuzrobotics/
Bloodsport Youtube Channel
https://www.youtube.com/c/bnsrobotics/
@bloodsport_battlebot
https://www.instagram.com/bloodsport_battlebot
@retrograde_battlebot
https://www.instagram.com/retrograde_battlebot/
Bloodsport/BnS Facebook Page:
https://www.facebook.com/bnsrobotics/
#CombatRobotics #beetleweight
00:00 - Intro
02:04 - I have a Patreon!
02:37 - Event Format
03:45 - Fight 1: Mixtape
06:58 - SPONSOR: PCBWAY
07:59 - Fight 2: Unknown Avenger??
08:39 - Fight 3: Supreme Ruler
11:40 - Oof
12:10 - Fight 4: Sandstorm
16:15 - Fight 5: NotDeadYet
18:54 - Fight 6: William Osman Drives!
21:33 - What went wrong?
23:24 - Closing Thoughts
...
https://www.youtube.com/watch?v=cnAIzg0eihU