Following up on the end of the video, the price didn't change at all after human review. However, a couple weeks ago I did see a change for other parts, so your mileage may vary. Also, make sure to do your research on heat treatment and bearing fitment before actually designing and ordering something like this - those topics are outside the scope of this video as I didn't want it to be over an hour long!
@crosswindjones
Жыл бұрын
Wow. I am absorbing everything I can about the sub 3lb combat robot space... Your tutorials are amazing. Thank you for the amazing quality on these!
@JustCuzRobotics
Жыл бұрын
Aw thanks!
@stingraymaster877
2 жыл бұрын
I needed this video
@JustCuzRobotics
2 жыл бұрын
Glad to hear!
@ianhoolihan2396
2 жыл бұрын
Holy shit, PCBway does metal parts now? That's sick. Do you know any good heat treatment shops in Massachusetts? And do you shoot for 54HRC?
@JustCuzRobotics
2 жыл бұрын
54hrc is best for S7 but maybe softer for 4130 to keep it less brittle. Body cote is the place we got Bloodsport's weapons heat treated at in 2020 and the hardness was pretty spot on for our S7 weapons.
@ianhoolihan2396
2 жыл бұрын
@@JustCuzRobotics sweet thanks man, great vid as always
@JustCuzRobotics
2 жыл бұрын
Thank you!
@Frosty_tha_Snowman
2 жыл бұрын
Dude, I love beater bar robots. They have some serious potential to send their opponents flying, and can still do big nasty penetrating impacts like a more standard vertical spinner can when they hit a corner, and have a less dispersed, more focused center of impact. They also tend to have more bite than a drum. I don't know, I just feel like they're really nasty, and even though they're used quite often, I think they're sort of disregarded and underestimated because of how basic they are.
@JustCuzRobotics
2 жыл бұрын
They definitely have a lot of advantages! The main disadvantage is simply that they tend to be a lot heavier than other weapon types, but they make use of that weight pretty well at larger diameters as clearly shown by Lynx and similar bots. Division stores about 4X the kinetic energy as Voxel on account of having a gigantic weapon that weighs about the same, despite spinning way slower. But my weapon was so big it was too high off the ground to even hit Voxel straight on in our fight leading to getting launched straight into the back wall. Voxel left a tooth imprint on the outside of the tooth of my own weapon!
@Frosty_tha_Snowman
2 жыл бұрын
@@JustCuzRobotics I can't recall the name, but there was a realllly nice robot that I saw fight awhile back in a livestream video of a robot competition. It had the entire frame welded together into 1 solid piece, and it had the largest beater bar I've ever seen on a robot to this day. It was almost more weapon than robot, literally around 49% weapon I would say, lol. I cannot find the video I saw it in now, it was silver and red, I can think of the arena and everything, I just cant think of the name. It's been awhile, but man, it was SO MUCH FUN to watch. It one shot almost everything it went against, and it bent another person's beater bar into a mobius strip looking shape, it was incredible. I'd seen them be absolutely devastating before that, even bots using the generic and common, copper-orange colored beater bar that you can buy online, but that was when I truly appreciated how much damage they were capable of doing.
@kodoqbesar4301
2 жыл бұрын
We need more traditional egg beater bars in heavyweight. The only beaters I know is Black Dragon, Glitch, Railgun Max, Pain Train 2020 (kinda), and Riptide
@JustCuzRobotics
2 жыл бұрын
If you think it cost a lot to get a 10oz version made just imagine when the weapon weighs 50 - 70 lb. If it isn't being done by a sponsor you're going to have a bad day. Glitch just posted that their wire EDM sponsor spent more than 60 hours cutting out their beater bars. I can almost guarantee you that if you actually paid for that it would be at least $50 per hour
@kodoqbesar4301
2 жыл бұрын
@@JustCuzRobotics So I have a question since I have no experience in robotics and robot combat. Can you make an eggbeater by cutting and welding pieces of metal together?
@AdityaPrakash-kt3rf
2 жыл бұрын
Great video Seth! I followed along and made my version too. You didn't holes for the screws? So my guess is it's drilled and fit in later and space needs to be left for that? Anyway, took me over an hour but was fun following along!
@JustCuzRobotics
2 жыл бұрын
I would not try and order this design to get made as is, it was really just an example of what you can do. Depending what you would be using to drive it you would need to figure out screw holes or whatever suits your needs. Some people will actually build a motor into their drum and epoxy the magnet ring into a side of it so they don't use any screws to hold the beater on.
@AdityaPrakash-kt3rf
2 жыл бұрын
@@JustCuzRobotics I meant screws on the attacking surfaces, for grabbing hold of opponents while the beater spins.
@JustCuzRobotics
2 жыл бұрын
I think you are missing the point of this style of weapon. The only reason the Fingertech beater bar has those screws is to add a hard steel tooth to bite into the opponent since the Fingertech gold bar is soft anodized aluminum. This beater I showed how to design, the ENTIRE THING IS HARD STEEL. Screws can bend and break and pull out and cause all sorts of imbalance issues. The entire beater being one solid piece is one of the biggest advantages to a custom machined design like this. Just look at Voxel and Lynx, no screws there!
@AdityaPrakash-kt3rf
2 жыл бұрын
Oh sorry. Since I'm a complete beginner, I didn't know the purpose of the screws on the Fingertech beaters. But I get your point now! Thanks for answering Seth!
@AdityaPrakash-kt3rf
2 жыл бұрын
Although I was wondering what other interesting shapes of egg beaters are possible. There's Black dragon's cylindrical one, Fingertech's 8-shape one are a few I know. This is quite an interesting question I feel.
@pruthavparab1077
2 жыл бұрын
Wow I never expected the cost to CNC machine would be so high
@JustCuzRobotics
2 жыл бұрын
That's what happens when your part is made by a machine that costs $60,000+ and an operator who is paid at least $50/hour!
@BenRyherd
2 жыл бұрын
@@JustCuzRobotics a while back I designed a beater bar very similar to the fingertech one but scaled down for an ant (before they did the same) I was getting quotes for ~$300 each with a minimum quantity of like 5 or 10.
@CircsC
Жыл бұрын
@@JustCuzRobotics What design choices could be made to optimize cost better? Maybe have the tooth be a separate part?
@JustCuzRobotics
Жыл бұрын
Shop around to different CNC shops to see which one is cheapest. Choose a cheaper material. Make the entire weapon smaller and have larger radii. Looser tolerances on the whole thing. None of these will necessarily cut the cost in half mind you but they will reduce it to some extent. Making the whole beater as close as possible to a just a rectangle with one straight sided cutout would be the main major change to reduce cost but then it would be lame.
@gearheadmetalfactory6402
5 ай бұрын
Would it be possible to get the beater bar design into a CAD form that is easily accessible?
@JustCuzRobotics
5 ай бұрын
It depends on what you mean by scaled up. You can obviously make a robot any shape that you want
@gearheadmetalfactory6402
5 ай бұрын
@@JustCuzRoboticswhat I mean scaled up is that if mini mulcher was able to use the weapon motor from subtraction.
@JustCuzRobotics
5 ай бұрын
I don't see why not
@gearheadmetalfactory6402
5 ай бұрын
@@JustCuzRoboticswhere would you start in design?
@JustCuzRobotics
5 ай бұрын
Choose all the needed electronics. Lay them out in cad. Start modeling the body around them.
@rahulghosh4289
2 жыл бұрын
CAD Software used?...if it's paid please suggest an open source one not in a condition to buy one....love from India
@JustCuzRobotics
2 жыл бұрын
Autodesk Fusion 360. It's free for hobbyists! Sorry if I forgot to mention that in the video but I'm pretty sure it's on screen somewhere.
@mrrants
2 жыл бұрын
I'm sad this video isn't titled "Beater By Design" 😒
@JustCuzRobotics
2 жыл бұрын
That would be too close to what I called my university Combat Robotics team, Death By Design!
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