How Much My Combat Robots Cost and How To Save Money On Yours!
ฝัง
- เผยแพร่เมื่อ 12 มิ.ย. 2024
- How much money does it cost to compete in the sport of combat robotics? Watch and find out!
Thanks to PCBWay [bit.ly/PCBWayJustCuz] for providing CNC machining, PCB fabrication, and helping to pay for my robots!
Cost of Combat Robots Survey: bit.ly/CombatCostSurvey
Original How I Got Started Vid: • How I Got Started, and...
Division V2.12 CAD justcuzrobotics.com/shop/p/di...
Mini Mulcher CAD justcuzrobotics.com/shop/p/mi...
Mini Mulcher BOM bit.ly/MiniMulcherBOM2021
Shrapnel Mine BOM bit.ly/SMineBOM
KARMA 30lb robot CAD grabcad.com/library/karma-30l...
Great Fabrication sources:
Anything 2D: sendcutsend.com/
3D CNC: bit.ly/PCBWayJustCuz
3D Printing: justcuzrobotics.com/3d-print-...
Note: Some of these are Amazon Affiliate links
Transmitters:
FS i6 Radio amzn.to/3IqICxs
QX7 Radio amzn.to/3tkG1RA
Radiomaster TX12 amzn.to/36zvtoR
Radiomaster TX16S amzn.to/36vLTyg
3D Printers:
Ender 3 Pro ($220-250 kit) amzn.to/3wDnTVh
Ender 3 V2 ($270-300 assembled) amzn.to/3ikXqDn
Sidewinder X2 ($470-500 assembled) amzn.to/3to0DZ5
Prusa Mini+ ($350 kit, $400 assembled) www.prusa3d.com/category/orig...
Prusa Mk3S+ ($750 kit, $1000 assembled) www.prusa3d.com/category/orig...
Other:
My dual LiPo charger amzn.to/3JpBfHX
Good cheaper charger amzn.to/3JtKEP0
TS100 Soldering Iron amzn.to/3Iik8Xm
Pinecil soldering iron: amzn.to/3wlQgqv
Just 'Cuz Robotics Website: justcuzrobotics.com/
Just 'Cuz Store: justcuzrobotics.com/shop
Try PCBWay's CNC Machining or PCB Fab using this link for a $5 new user credit: bit.ly/PCBWayJustCuz
Instagram: @JustCuzRobotics
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@bloodsport_battlebot
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@retrograde_battlebot
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Bloodsport/BnS Facebook Page:
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#CombatRobotics #Beetleweight #CNC
Chapters:
00:00:00 Intro
00:01:35 The Beginning
00:03:03 Division V1
00:05:38 Division V1 Cost Breakdown
00:06:11 My Other Robots
00:07:34 Where's the Money From?
00:08:47 Thanks to my Sponsors!
00:09:38 SPONSOR: PCBWay
00:10:29 Cost Savings
00:11:05 Time vs Money
00:12:45 Services Worth Outsourcing
00:14:28 Recommendations
00:17:55 Outro - วิทยาศาสตร์และเทคโนโลยี
I've found in my bots that you can offset a limited budget with a little creativity, hard work, and steady hands. I was able to build my 3rd place flipper Antweight for about $85, and that's including the same set of Fingertech motors, no-name Chinese Esc's, and 2s Lipo (never resoldered the setup) that's been in different iterations since 2019. Making a mono-block chassis by milling out a piece of UHMW is totally possible using nothing but a $50 mini benchtop drill press. Heck, I made my son a competitive antweight in 24 hours using a Wal-Mart cutting board, a cookie sheet, 6 discount n-30 motors, and 6 Lego wheels. 19mm tall invertible wedgebot for about $50.
That was awesome! Extremely helpful for someone like me who is just starting out in the hobby. I have had such a hard time keeping track of costs but I am still in the 1lb bracket and 3D printing most my parts. For my new 3lb design, I will be using a lot of the tips you gave. Thanks!
Great to hear!
btw for the fs 16 you can change the joystics so the left one is centered
nice video, i liked how like quickly you over explain everything, it’s not boring cause u just zip through it without hesitating, nice info
Thank you!
I probably sunk $100 into my current bot. But I already had my batteries, radios, and ESCs. Even better I did so terrible in my first event that people donated wheel hubs and motors that they bought but couldn’t use. So my only real costs were some spares, wheels, UHMW and some nice servos that I may or may not use for a weapon. I also make everything my self without 3D printers or CNC stuff or services and that saves a good bit of money. If I ever make a spinner bot I will have to start using send cut send but we will see if I ever do that
Using stuff you already have can be a great cost savings once you have been doing this or other RC sports for a while. It helps to stick within one weight class for that reason!
Great video as always Seth! I appreciate the info!
thank you! i really want to get into this and i think your videos will definitely be the catalyst.
Do it!
Hats off to you sir... sounds like a labor of love. I'm on a similar path. Great content.
Thank you!
I destroyed my first receiver during a weapon test as well! I was dumb though and didn't put the lid on the bot cause I thought it would be fine for a second, it wasn't and sucked the receiver and ESC into the blade killing both and the weapon motor as well. Lesson learned
Ouch! Definitely not a great start
Good infomology here 👍
👍 Best TBB video on YT.
Great video! Just subscribed and love the content. Is there a particular website or online store you would recommend for a beginner looking to build a 3lb bot? I have some decent experience fabricating with metal, but am very new to what motors, gears, radio receivers, wheels, etc to use. Thanks so much and keep those vids coming!
Thank you! I have a whole list of sources here bit.ly/JCR-Resources
I really want to get into combat robots except that there is no events nor anything where I live in belgium and my budget is literally 0, I was thinking that I could find some ultra cheap reciver and motors but just like for rc planes, the hard entry point is a controller which is around 50€ last time I checked which is WAY over my budget... so am there not being able to make things more complex than tiny 3d printed contraptions like fully 3d printed spring powered clock or desk toys... gosh I wish money wasnt something required for literally everything and such huge amounts...
Some questions because they were requested:
1. Are you planning to or do you already have a cnc mill (tormach or haas or something like that)? I suppose if you still have access to the maker space this isnt a priority.
2. Do you reckon the itsy bitsy Makera Carvera with its tool changer and levelling will be a great tool to get started with for small aluminium parts? Seems like all the cnc mills at the low end trade every bit of quality of life for maximum cutting power and travel for the price. I mention this one because it seems to take up little space while having tons of quality of life features so it won't become a hobby by itself.
3. Have you managed to successfully make any press fit parts ordering cnc / cut parts off the internet (I'm thinking press fit bearings and that sorta thing)
4. I imagine the next video will cover this but do you have tool recommendations for certain price brackets (for instance under 500 for a printer and some hand tools, under 5000 for a router and some power tools /that sort of thing)? Basically a tool prioritization list for the order to build your inventory in.
The makerspace I have access to now has a Tormach PCNC1100 which is pretty decent but it still isn't nearly the same as a Haas. I couldn't possibly buy my own tormach or Haas as I live in an apartment though, even a CNC Router would probably be too loud.
Like I said in the video any sort of gantry CNC router will need some seriously dialed back speeds and feeds or else lots of upgrades to add coolant and an enclosure or something to contain the mess in order to cut metal. It can do it but it'll be many many times slower than a Tormach can do. A proper mill like you said has small travels, but that's in order to have 10X - 100X the rigidity that a router style machine can have.
Yep! I got a bearing press fit from a machined part from ZTL and just called out +0.000 / - 0.002 inch on the bores. They were perfect. For a standard tolerance laser cut part though, you will wanna probably go under size and Dremel it out and then press the bearing in carefully when there isn't too much resistance.
I can't spend too long to cover something as specific as that but I will show what other people have been buying. One guy has an Omio X6 CNC router for $3000 he really likes. Can do light cuts in aluminum as it's a bigger but more rigid machine than a Carvera. Shapeoko works well for plastic but it really struggles in metal.
I remember being a broke kid most of my life... its a good thing I'm just now learning about combat robotics...
I also just learned that sponsorship is a tax deduction so im planning on building a dozen or so bots and give them away at the next local combat robot event so some broke kids can be at least halfway to a bot build
Custom gears... Any suggestions for getting them made or making them? Also (and I'm probably the only one) I would love to know more about slip clutches used in heavyweight spinners.
Many thanks.
Custom gears step one: spend way too much money to buy 100 at a time at minimum. Step two: regret step one
Machinery handbook has the standards in it to design your own.
I like this question because I bet the biggest factor is knowing which service to pick and how simple to make the gear to not need a fancy machine.
I bet they could be laser cut depending on needed tolerances.
I was curious as to whether or not buying a kit like a viper or D2 and taking electronics from those to use in your own robot would save money. Would this work, cost about the same, or be a terrible idea?
It is not a 'terrible idea' but it will certainly not save money to pay for all the added chassis components. It will be much cheaper to part together a set of electronics and then build a chassis around it in an economical manner.
The kit will cost more since you are paying for more than just parts. There is labor cost involved with packaging and sorting all these components, sometimes with added soldering or wiring etc compared to standalone parts. Plus for the D2 especially those machined chassis parts are not cheap to make either.
There are already some options out there for weapon kits and many options for drive kits. I intend to offer something along those lines eventually, but it'll take a while to get to that point. Waiting on some ESC development to be able to offer an ESC + Gearmotor drivetrain package. And weapon stuff... Well where spinners are concerned that just seems like a liability nightmare waiting to happen.
I'm going to make a mold with my 3d printer and make a plaster mold with my plastic one. Then melt Aluminum and cast it in. My friends are great drinkers and that makes a lot of free material. Sure it's ain't as tough but free is a great price ;)
That is certainly one way to make metal parts
@@JustCuzRobotics Your channel as been helping a lot! I don't know what to expect though. How sturdy it would be.
Casting may be a tricky thing to do properly without there being any voids or air pockets left inside the part (for complicated shapes at least). If that happened it would be a lot weaker than a solid billet part. If not, it shouldn't be that weak and will certainly be way stronger than the original printed part.
@@JustCuzRobotics Thanks :)
One idea I had to help reduce air pockets / voids, provided the parts you are casting aren't too big, is to find a way to attach/stick an electric toothbrush to the side of the cast and switch it on as it cools. Electric toothbrushes usually operate at, or close to, ultrasonic speeds so the vibrations might help lift the air out of the metal without being so overpowered they cause it to splash around. May not work, but it might make just enough of a difference to help prevent a failed or weak cast?
Me 3 month ago when I first started getting into combat robots "hey this is a neat Hobby. I'm going to build and design my own ant weight fast and cheap!"
Me after 3 months in CAD after multiple complete redesigns and hundreds of dollars spent and hours of printing and prototyping... "F**k"
Is there a free way to convert stl or obj files to dfx files for send cut send
Not directly that I'm aware of. Those are 3d mesh files rather than 2D CAD/ drawings. The easiest way is import into fusion 360 and trace the part you need to export as DXF into a sketch, then same that sketch as a DXF (right click in left hand menu)
@@JustCuzRobotics Thanks so much. The free version does not allow exporting in DXF but your explanation definitely helps me.
It does allow the save to dxf the way I described, just not exporting a drawing to a DXF
@@JustCuzRobotics Awesome Thanks. I am completely new to the program and it is a bit of a learning curve considering I have been using 3d builder up to this point.
I could use this, I spend thousands just for this 1 Norwalk coming up next week
THOUSANDS!? what weight class are you competing in?
He bought multiple entire 3lb robot kits...
@@Dangineering 3 lbs,my 1st one was a kit,then my next Norwalk I modified that same kit,now I’m running a FTBB,not a kit tho,it 1st was a kit but got some new stuff in em and I plan on adding some more custom things once I see what I need to upgrade to make it more effective and I could use this stuff to find cheaper ways in getting replacement parts like chassis wise and other configs/parts
@@chriscapps206 Ahh, I had no idea that the kits were that expensive.
Oh yea. They are very niche and low volume so by the time you pay the person for their time and the price of low volume production they get pricey.
Personally and it's totally a personal preference, I don't see the point in going full kit because I always thought the fun of it was in making your own designs and seeing how they work out.
Do you use alloy 910 at all?
Pretty much every black printed part in Division is Alloy 910
@@JustCuzRobotics how does it do for impact resistance and structural reliability vs a carbon fiber nylon?
Carbon fiber filled is usually not very good for impact toughness, the more rigid materials are usually more brittle. Alloy 910 is also sortof brittle and stiff as Nylon materials go, but it prints very nicely in my experience and it is very strong and low friction so it's ideal for pullies and gears. I'm starting to experiment with a few other options though for parts that might need to take a hit.
@@JustCuzRobotics awesome, thanks man! Looking for a material that prints easier then CF nylon and has similar or better suitability for frames as well as wheels and hubs and such.
For anything that will take a direct hit and doesn't need to be rigid, TPU is king. It's not hard to print at all and it's basically rubber so it's unbreakable. I use it for Division V3's wheel hubs and wedge/fork mounts now.
whats with the traxxas rustler with a 2 liter bottle and broom sticked taped to it? Cant see that ever winning a match
Because of your videos I'm making my own beetleweight robot Wich I me a name for, can you name it for me?
That's cool! I would need to know what it does or what it looks like to give it a good name tho
Well, it's a lifter and also it's a big square
How about cover it with brown Kraft paper tape and call it Special Delivery?
We don't have tape but we can call it special delivery, PAIN
Wait let's call it platypus because of the beating stick
How much do u make doing tournaments whith these bots?
Make? Hahaha. Normally we pay registration fees to be allowed to compete and there is often no prize money offered. NHRL is different in that they have a refundable deposit and cash prize for top 3 but it doesn't cover the cost to compete really. And the other 150ish robots get nothing. This is a hobby, not a profitable venture.
@JustCuzRobotics wasn't meant for profitable... Judge much just wondering if u made something considering it cost to repair it... an I bean watching this stuff since I was little an still do